Developer Tools
Developer Tools icon

Developer Tools

Format, beautify, validate, minify, and diff code across languages — plus UUID generation, cron expression parsing, and more.

Start typing to search…

At a glance

1300+

Tools available

100%

Free to use

0

Sign-ups needed

Instant results

Most tools run in your browser for speed and privacy.

Private by default

Your inputs stay on your device — we don't store them.

228 tools

Website source code viewer

Website source code viewer

Website source code viewer

Github repository size checker

Github repository size checker

Check the total size of the GitHub repository without cloning

Tailwind CSS Gradient Generator

Tailwind CSS Gradient Generator

Generate and preview beautiful tailwind CSS gradient classes

Javascript Obfuscator

Javascript Obfuscator

Obfuscates your source code, preventing it from being stolen and used without permission.

TTF Metadata Extractor

TTF Metadata Extractor

TTF Metadata Extractor online

Strong Password Generator

Strong Password Generator

create complex, secure passwords that are difficult for hackers to guess

Diff Viewer

Diff Viewer

Diff text or compare files online

HTML beautifier

HTML beautifier

HTML beautifier online

Cron Expression Explainer

Cron Expression Explainer

Cron Expression Explainer

SQL Formatter

SQL Formatter

SQL Formatter and Beautifier

CSS Beautifier

CSS Beautifier

CSS Formatter / Beautifier

Javascript Beautifier

Javascript Beautifier

Javascript Formatter / Beautifier

CSS Minifier

CSS Minifier

CSS Minifier

Markdown to HTML

Markdown to HTML

Markdown to HTML

HTML to Markdown

HTML to Markdown

HTML to Markdown

Remove Comments

Remove Comments

Efficiently remove comments from code written in C, C++, C#, CSS, HTML, Java, JavaScript, MATLAB, PHP, Python, Ruby, SQL, Swift,Kotlin,TypeScript,R,Go and more.

HTML Minifier

HTML Minifier

HTML Minifier

SVG Viewer

SVG Viewer

Render SVG with the text

HTML Viewer

HTML Viewer

View and preview HTML code in real-time with our free HTML viewer tool. Perfect for developers and designers.

XML Formatter

XML Formatter

Format, beautify, and validate XML documents online with our free XML formatter tool

SVG Blob Generator

SVG Blob Generator

Generate beautiful SVG blob shapes with customizable colors, sizes, and complexity. Perfect for modern web design and UI elements.

JSON Screenshot Capture

JSON Screenshot Capture

Capture JSON data as a beautiful screenshot image with syntax highlighting and customizable styling options.

JSON Formatter

JSON Formatter

Format and beautify JSON data online. Pretty print, minify, validate, and fix JSON formatting with our free online tool.

JSON Diff

JSON Diff

Compare two JSON documents and find semantic differences with visual highlighting

Markdown Table Generator

Markdown Table Generator

Generate markdown tables with our free online table generator. Create properly formatted markdown tables with headers, alignment, and custom styling.

Java Viewer

Java Viewer

View and format Java code with our free online Java viewer. Syntax highlighting, code formatting, and easy-to-read display for Java files.

POJO Tools

POJO Tools

Generate Plain Old Java Objects (POJOs) from JSON, XML, and YAML data with our comprehensive POJO tools generator

JSON Generator

JSON Generator

Generate structured JSON data with our comprehensive JSON generator tool. Create JSON from templates, schemas, and custom structures

CSS Selector Cheat Sheet

CSS Selector Cheat Sheet

Comprehensive CSS selector reference guide with examples and interactive demonstrations

Yaml Viewer

Yaml Viewer

View, format, and validate YAML files online with syntax highlighting

Less To Stylus Converter

Less To Stylus Converter

Convert LESS CSS code to Stylus syntax online

LaTeX Table Generator

LaTeX Table Generator

Generate LaTeX table code from your data. Create professional tables for academic papers, documents, and research.

LESS Compiler

LESS Compiler

Compile LESS (Leaner Style Sheets) code to CSS instantly. Free online LESS compiler with syntax highlighting and error detection.

SCSS Compiler

SCSS Compiler

Compile SCSS (Sass) code to CSS instantly. Free online SCSS compiler with syntax highlighting and error detection.

JSONPath Tester

JSONPath Tester

Test and evaluate JSONPath expressions against JSON data. Free online JSONPath tester with syntax highlighting and real-time results.

LESS to SCSS Converter

LESS to SCSS Converter

Convert LESS CSS code to SCSS syntax instantly. Free online LESS to SCSS converter that transforms LESS variables, mixins, and functions to SCSS format.

SASS to Stylus Converter

SASS to Stylus Converter

Convert SASS/SCSS code to Stylus syntax instantly. Free online SASS to Stylus converter that transforms SASS variables, mixins, and functions to Stylus format.

HTML Link Generator

HTML Link Generator

Generate HTML anchor link tags instantly. Free online HTML link generator that creates properly formatted <a> tags with href, target, rel, and other attributes for web development.

Curl to PHP Converter

Curl to PHP Converter

Convert cURL commands to PHP code instantly. Free online cURL to PHP converter that generates PHP cURL code from command-line cURL requests for easy integration into PHP applications.

GraphQL Beautifier

GraphQL Beautifier

Format and beautify GraphQL queries, mutations, and schemas. Free online GraphQL beautifier with syntax highlighting and proper indentation.

JSON Encode Online

JSON Encode Online

Encode JavaScript objects, arrays, and values to JSON strings instantly. Free online JSON encoder with syntax validation, pretty printing, and real-time conversion.

TypeScript Formatter

TypeScript Formatter

Format and beautify TypeScript code instantly. Free online TypeScript formatter with customizable formatting options.

Code Highlighter

Code Highlighter

Highlight code syntax for multiple programming languages instantly. Free online code highlighter with support for 100+ languages and customizable themes.

JavaScript Tester

JavaScript Tester

Test and run JavaScript code online with a live console. Execute JavaScript code instantly, see console output, debug errors, and test your code snippets in a safe sandboxed environment.

YAML Beautifier

YAML Beautifier

Beautify and format YAML code online. Format YAML files with proper indentation, validate YAML syntax, and make your YAML code more readable. Free YAML beautifier tool.

Sort XML Online

Sort XML Online

Sort XML elements and attributes online. Organize XML data by element name, attribute value, or custom criteria. Free XML sorting tool with multiple sorting options.

JSON to One Line

JSON to One Line

Convert formatted JSON to a single line. Minify and compress JSON by removing whitespace, newlines, and indentation. Free JSON minifier tool.

JSON Stringify Online

JSON Stringify Online

Convert JavaScript objects to JSON strings online. Free JSON.stringify tool with formatting options, replacer functions, and space parameters. Perfect for developers and API testing.

HTML Pretty Print

HTML Pretty Print

Pretty print and format HTML code online. Free HTML formatter with customizable indentation, line wrapping, and formatting options. Perfect for developers and web designers.

File Diff

File Diff

Compare files and text online. Free file diff tool to find differences between two files or text documents. Perfect for code review, document comparison, and version control.

Crontab Generator

Crontab Generator

Generate cron expressions easily with our online crontab generator. Create custom cron schedules with visual selectors for minutes, hours, days, months, and weekdays.

XAML Beautifier

XAML Beautifier

Beautify and format XAML code instantly. Free online XAML beautifier with syntax highlighting, indentation control, and validation.

YAML Validator

YAML Validator

Validate YAML syntax and check for errors instantly. Free online YAML validator with detailed error reporting.

HTML to Markdown Converter

HTML to Markdown Converter

Convert HTML code to Markdown format instantly. Free online HTML to Markdown converter for documentation and content creation.

Python Formatter

Python Formatter

Format and beautify Python code instantly. Free online Python formatter with PEP 8 compliance and syntax highlighting.

Perl Formatter

Perl Formatter

Format and beautify Perl code instantly. Free online Perl formatter with proper indentation and syntax highlighting.

SCSS to LESS Converter

SCSS to LESS Converter

Convert SCSS (Sass) code to LESS format instantly. Free online SCSS to LESS converter for CSS preprocessor migration.

C Formatter and Beautifier

C Formatter and Beautifier

Format and beautify C source code with consistent indentation and style.

C# Escape Unescape

C# Escape Unescape

Escape and unescape C# strings with support for all C# escape sequences including quotes, newlines, tabs, and Unicode characters.

JSON Sorter

JSON Sorter

Sort JSON objects by keys and arrays by values with customizable options

JavaScript Validator

JavaScript Validator

Validate JavaScript code syntax and detect errors. Free online JavaScript validator with real-time validation and detailed error reporting.

PHP Beautifier

PHP Beautifier

Beautify and format PHP code instantly. Free online PHP beautifier tool with customizable indentation, brace styles, and real-time formatting.

XML Validator

XML Validator

Validate XML syntax and check for errors. Free online XML validator with detailed error reporting, line numbers, and real-time validation.

XML Highlighter

XML Highlighter

Highlight XML syntax with color coding. Free online XML highlighter tool with real-time highlighting, XML-specific syntax colors, and easy copy/download.

JSON Cleaner

JSON Cleaner

Clean and format JSON code instantly. Free online JSON cleaner with validation, minification, formatting, and removal of unnecessary whitespace.

JSON Decode Online

JSON Decode Online

Decode JSON strings instantly. Free online JSON decoder with validation, pretty printing, and detailed error reporting.

CSS to SASS Converter

CSS to SASS Converter

Convert CSS code to SASS/SCSS syntax instantly. Free online CSS to SASS converter that transforms regular CSS into SASS format with nesting, variables, and modern preprocessor features.

SQL Escape Unescape

SQL Escape Unescape

Escape and unescape SQL strings instantly. Free online SQL escape/unescape tool that handles quotes, special characters, and prevents SQL injection by properly escaping SQL strings.

JSON Escape Unescape

JSON Escape Unescape

Escape and unescape JSON strings instantly. Free online JSON escape/unescape tool that handles quotes, special characters, and properly escapes JSON strings for use in code, APIs, and data transmission.

OPML Viewer

OPML Viewer

View and visualize OPML (Outline Processor Markup Language) files in a hierarchical, readable format. Free online OPML viewer that displays feed subscriptions and outlines.

Source Code Viewer

Source Code Viewer

View and format source code with syntax highlighting. Free online source code viewer that displays code in a readable format with support for multiple programming languages and file uploads.

Stylus Compiler

Stylus Compiler

Compile Stylus code to CSS instantly. Free online Stylus compiler that converts Stylus preprocessor syntax to standard CSS with support for variables, mixins, nesting, and all Stylus features.

ActionScript Beautifier

ActionScript Beautifier

Beautify and format ActionScript code instantly. Free online ActionScript beautifier tool with customizable indentation, brace styles, and real-time formatting.

JSON Validator

JSON Validator

Validate JSON syntax instantly. Free online JSON validator that checks JSON format, detects errors, and provides detailed error messages with line numbers.

Lua Minifier

Lua Minifier

Minify Lua code instantly. Free online Lua minifier that removes whitespace, comments, and unnecessary characters to reduce file size while maintaining functionality.

XML Stringify

XML Stringify

Convert XML to string format instantly. Free online XML stringify tool that escapes XML for use in code, JavaScript, JSON, or other string contexts with proper escaping.

CSS to LESS Converter

CSS to LESS Converter

Convert CSS to LESS format instantly. Free online CSS to LESS converter that transforms CSS code to LESS syntax with support for variables, mixins, and nested rules.

HTML Table Generator

HTML Table Generator

Generate HTML table code from CSV, JSON, or manual input. Free online HTML table generator with customizable styling options.

YAML Editor

YAML Editor

Edit YAML files online with syntax highlighting, tree view, validation, and real-time preview. Upload files or load from URL.

MDX Formatter

MDX Formatter

Format and beautify MDX files online. Free MDX formatter with syntax highlighting, file upload, and URL loading support.

XML Pretty Print

XML Pretty Print

Pretty print XML online. Free XML formatter that formats and beautifies XML with indentation, validation, file upload, and URL loading.

JSON to String Converter

JSON to String Converter

Convert JSON data to JSON string format with escape characters. Free online tool for converting JSON objects to string format.

XML To Java Converter

XML To Java Converter

Convert XML data into Java class models with nested fields and inferred data types.

JavaScript Escape Unescape

JavaScript Escape Unescape

Escape and unescape JavaScript strings instantly

CSS to Stylus Converter

CSS to Stylus Converter

Convert CSS stylesheets to clean Stylus syntax with optional selector nesting and instant browser-based output.

HTML to PUG Converter

HTML to PUG Converter

Convert HTML markup into clean PUG syntax instantly.

Markdown Formatter

Markdown Formatter

Format and beautify messy Markdown instantly in your browser.

Sass To Scss Converter

Sass To Scss Converter

Convert indented SASS syntax to SCSS format instantly

XML XSL Transformation

XML XSL Transformation

Apply XSL stylesheets to XML documents instantly in your browser.

C++ Formatter

C++ Formatter

Beautify unformatted C++ code with configurable indentation instantly.

JSON to TypeScript POJO Generator

JSON to TypeScript POJO Generator

Convert JSON objects into TypeScript interfaces and type definitions instantly in browser.

XML Minifier

XML Minifier

Minify XML by removing formatting and optional comments.

JSON to PHP Array Converter

JSON to PHP Array Converter

Turn JSON into PHP short array syntax with proper escaping, client-side.

Scss Beautifier

Scss Beautifier

Format and beautify SCSS code with proper indentation and clean structure.

XPath Tester

XPath Tester

Test XPath expressions against XML and view matching nodes instantly.

Json Fixer

Json Fixer

Repair malformed JSON by fixing common syntax issues and output valid formatted JSON.

Stylus To Sass Converter

Stylus To Sass Converter

Convert Stylus syntax to Sass syntax instantly.

SOAP Formatter

SOAP Formatter

Format and beautify SOAP XML envelopes instantly

Babel Formatter

Babel Formatter

Format modern JavaScript/Babel code with clean readable output.

YAML Parser

YAML Parser

Parse YAML input and inspect structured output in tree and JSON views.

SVG Formatter and Beautifier

SVG Formatter and Beautifier

Beautify and minify SVG markup with live preview and downloadable output.

Stylus to CSS Converter

Stylus to CSS Converter

Convert Stylus syntax to CSS instantly in the browser.

Marquee Generator

Marquee Generator

Create customizable scrolling marquee text and generate ready-to-use HTML markup.

JSON Serialize Online

JSON Serialize Online

Serialize JSON data into compact JSON string format with instant validation.

C Sharp Viewer

C Sharp Viewer

Format, beautify, and minify C# code instantly in your browser.

Java Escape Unescape

Java Escape Unescape

Escape and unescape Java strings in real time.

SASS Compiler

SASS Compiler

Compile indented SASS syntax into CSS instantly

XML Diff

XML Diff

Compare two XML documents and inspect their line-by-line differences instantly.

Angular Formatter

Angular Formatter

Beautify Angular component templates with Prettier, configurable indentation, and instant preview.

JSON to Java Converter

JSON to Java Converter

Convert JSON data to Java POJO classes instantly with type inference and nested class support.

Jade to HTML Converter

Jade to HTML Converter

Convert JADE (legacy Pug) templates into clean HTML markup directly in the browser with instant preview.

JSON Navigator

JSON Navigator

Browse and navigate JSON data interactively as a hierarchical tree with breadcrumb paths and key-value details.

XML Escape Unescape

XML Escape Unescape

Escape plain XML entities and unescape escaped XML instantly in browser.

HTML File Input Generator

HTML File Input Generator

Generate HTML file input markup with common attributes instantly.

EM to Percent Converter

EM to Percent Converter

Convert em units to percent, px, rem, and pt values.

CSS Background Image Generator

CSS Background Image Generator

Generate CSS background-image rules with gradient and image options.

Point to REM Converter

Point to REM Converter

Convert point values to rem and related CSS units quickly.

JSON to Python POJO Generator

JSON to Python POJO Generator

Convert JSON data into Python class models with nested structure support.

EM to Point Converter

EM to Point Converter

Convert em units to points, pixels, rem, and percent values instantly.

PX to Percent Converter

PX to Percent Converter

Convert pixel values to percent, em, rem, and point units.

YAML to C Sharp POJO Generator

YAML to C Sharp POJO Generator

Parse YAML and generate C# property classes with Newtonsoft.Json attributes in your browser.

HTML Strikethrough Generator

HTML Strikethrough Generator

Wrap text in HTML s or del tags with escaped output and live preview in the browser.

CSS Box Resize Generator

CSS Box Resize Generator

Generate CSS for the box resize property on textareas and divs with horizontal vertical or both values.

XML to Python POJO Generator

XML to Python POJO Generator

Convert XML documents into Python dataclass models with nested types in the browser.

Avro Formatter

Avro Formatter

Format and minify Apache Avro schema JSON with validation and instant browser-side output.

YAML to TypeScript POJO Generator

YAML to TypeScript POJO Generator

Convert YAML documents into TypeScript interfaces and types in the browser.

HTML Progress Generator

HTML Progress Generator

Build accessible HTML progress elements with live preview and copy-ready markup.

PX to REM Converter

PX to REM Converter

Convert pixel values to rem (and related CSS units) instantly in the browser.

XML to Go POJO Generator

XML to Go POJO Generator

Convert XML documents into typed Go structs (POJO style) with nested types in the browser.

JSONify String

JSONify String

Turn any plain text into a valid JSON string literal using JSON.stringify—ready to paste into JSON, configs, or code.

PX to Point Converter

PX to Point Converter

Convert CSS pixels to typographic points using the standard 96 CSS px per inch mapping (1 pt = 1/72 in).

Percent to PX Converter

Percent to PX Converter

Convert font-size or layout percentages to pixels using a configurable base size, with EM, REM, and PT equivalents.

HTML BDO Generator

HTML BDO Generator

Wrap text in an HTML bdo element with LTR or RTL direction. Copy-ready markup in the browser.

Base64 to JavaScript Converter

Base64 to JavaScript Converter

Decode Base64 to UTF-8 text and emit safe JavaScript string literals or Uint8Array snippets in the browser.

HTML Date and Time Input Generator

HTML Date and Time Input Generator

Configure HTML date, time, and datetime-local inputs and copy accessible, validation-friendly markup.

Xml To Json Schema Generator

Xml To Json Schema Generator

Infer JSON Schema from XML structure in the browser

Rem To Percent Converter

Rem To Percent Converter

Convert rem units to percent, px, pt, and related CSS values

Point To Px Converter

Point To Px Converter

Convert typographic points to CSS pixels using 96 px per inch mapping

HTML Text Input Generator

HTML Text Input Generator

Build type=text input markup with common attributes and live preview

Html Radio Generator

Html Radio Generator

Build accessible HTML radio inputs with labels, groups, and copy-ready markup.

Rem To Point Converter

Rem To Point Converter

Convert rem values to typographic points using your root font size and standard CSS px-to-pt mapping.

Sql Table Generator

Sql Table Generator

Design columns and constraints, then generate CREATE TABLE SQL for MySQL, PostgreSQL, and SQLite in the browser.

Json To Go Pojo Generator

Json To Go Pojo Generator

Turn JSON payloads into nested Go structs with inferred types in the browser

Percent To Em Converter

Percent To Em Converter

Convert CSS percent values to em units using standard font-size relationships

HTML Mark Text Generator

HTML Mark Text Generator

Generate HTML that wraps chosen phrases with mark tags while escaping the rest safely. Copy snippets for blogs and tutorials.

XML to C Sharp POJO Generator

XML to C Sharp POJO Generator

Paste XML sample and generate Newtonsoft.Json C# POCO classes with JsonProperty mappings in your browser.

HTML Emphasize Text Generator

HTML Emphasize Text Generator

Wrap matching phrases with strong emphasis or idiomatic italic tags plus safe HTML escaping.

YAML to Dart POJO Generator

YAML to Dart POJO Generator

Generate Dart data classes with fromJson/toJson maps from YAML samples in the browser.

JSON to C Sharp POJO Generator

JSON to C Sharp POJO Generator

Paste JSON and generate Newtonsoft.Json C# POCO classes with JsonProperty attributes in your browser.

EM to PX Converter

EM to PX Converter

Convert CSS em values into pixels, plus percent, rem, and points using a configurable parent font size.

JSON to JavaScript POJO Generator

JSON to JavaScript POJO Generator

Generate JavaScript ES6 classes from JSON samples with constructor and toJSON in the browser.

XML to Dart POJO Generator

XML to Dart POJO Generator

Generate Dart data classes with fromJson/toJson maps from XML samples in the browser.

YAML to JavaScript POJO Generator

YAML to JavaScript POJO Generator

Generate JavaScript ES6 classes from YAML samples with constructor and toJSON in the browser.

JSON to JSON Schema Generator

JSON to JSON Schema Generator

Infer a JSON Schema (Draft 7) from any JSON sample with property type detection in the browser.

Percent To Rem Converter

Percent To Rem Converter

Convert percent values to rem (and px, pt) instantly using a configurable root font size.

Cubic Bezier Curve Generator

Cubic Bezier Curve Generator

Design a cubic-bezier easing curve with draggable handles and instantly copy the CSS transition timing function.

CSS Background Color Generator

CSS Background Color Generator

Pick a background color, preview it on a sample block, and copy the CSS background-color rule or full HTML snippet.

XML To TypeScript POJO Generator

XML To TypeScript POJO Generator

Convert XML data into TypeScript interface definitions instantly in your browser.

YAML To JSON Schema Generator

YAML To JSON Schema Generator

Generate Draft-07 JSON Schemas from arbitrary YAML documents instantly in your browser.

HTML To Base64 Converter

HTML To Base64 Converter

Encode HTML markup to a Base64 string instantly in your browser for safe embedding and transport.

JSON to Proto Converter

JSON to Proto Converter

Turn sample JSON into Protocol Buffers v3 message definitions for services and codegen.

CSS to Base64 Converter

CSS to Base64 Converter

Encode CSS text to Base64 safely for data URLs and inline embedding.

YAML to Python POJO Generator

YAML to Python POJO Generator

Generate Python dataclass models from YAML structure for config and API typing.

Base64 to HTML Converter

Base64 to HTML Converter

Decode Base64 strings back to UTF-8 HTML markup in your browser.

HTML Dialog Generator

HTML Dialog Generator

Configure dialog options and copy native HTML dialog element snippets.

XML to JavaScript POJO Generator

XML to JavaScript POJO Generator

Turn XML samples into JavaScript ES6 classes with fromJSON and toJSON in the browser.

HTML Meter Generator

HTML Meter Generator

Configure value, min, max, low, high, optimum, and optional id or class for a native HTML meter tag with live preview.

Yaml To Go Pojo Generator

Yaml To Go Pojo Generator

Convert YAML documents into nested Go structs in the browser for configs and APIs.

Create Integer Array

Create Integer Array

Convert a list of integers into formatted language-specific array declarations (JS, Python, PHP, Java, C++, etc.).

Edit JSON

Edit JSON

Edit, format, validate, and visualize your JSON data online with syntax highlighting, an interactive tree explorer, and instant browser-side processing.

Extract JSON Keys

Extract JSON Keys

Extract all keys from JSON data instantly. Get a list of all object keys in flat, nested, or dot-notation format with custom sorting and formatting options.

Extract JSON Values

Extract JSON Values

Extract values from JSON data instantly. Filter values by key name, JSON path, or data type and export them as a clean list or JSON array.

Flatten JSON Object

Flatten JSON Object

Flatten nested JSON objects into a single-level key-value map online. Customize separators, handle arrays, and download or copy the flattened JSON output instantly.

Hide JSON Strings

Hide JSON Strings

Mask, censor, or anonymize string values inside your JSON files while preserving the overall JSON structure and data schema for testing and privacy.

Censor JSON

Censor JSON

Remove, redact, or censor sensitive information (specific keys, number values, ranges, or custom text patterns) from your JSON files.

Analyze JSON

Analyze JSON

Validate your JSON strings and display detailed statistics including total objects, keys, nested depths, and data type breakdowns.

CSS Clip Path Generator

CSS Clip Path Generator

Generate CSS clip-path polygons and shapes with an interactive editor. Free online CSS clip path generator with real-time preview.

CSS Box Shadow Generator

CSS Box Shadow Generator

Generate CSS box-shadow code with an interactive editor. Free online CSS box shadow generator with real-time preview and presets.

CSS Gradient Generator

CSS Gradient Generator

Generate CSS linear and radial gradients with an interactive color picker. Free online CSS gradient generator with real-time preview.

CSS Background Pattern Generator

CSS Background Pattern Generator

Generate beautiful CSS-only background patterns with customizable colors, sizes, and pattern types for your web projects using pure CSS

CSS Glassmorphism Generator

CSS Glassmorphism Generator

Create beautiful frosted glass effects using CSS backdrop-filter blur with customizable glass color, blur intensity, opacity, and border settings

CSS Text Glitch Effect Generator

CSS Text Glitch Effect Generator

Generate CSS keyframe-based text glitch effects with customizable colors, intensity, and animation speed for stunning visual effects

CSS Triangle Generator

CSS Triangle Generator

Generate CSS triangle shapes with custom width, height, direction, and color using pure CSS border techniques

CSS Border Radius Generator

CSS Border Radius Generator

Generate CSS border-radius code with visual preview for creating rounded corners, circular elements, and custom border radius shapes

Code to Image Converter

Code to Image Converter

Convert code snippets into beautiful images with syntax highlighting, customizable themes, fonts, and backgrounds for sharing on social media

React Native Shadow Generator

React Native Shadow Generator

Generate React Native shadow styles for iOS and Android with real-time preview. Free online React Native box shadow generator.

JavaScript Minifier

JavaScript Minifier

Minify and compress JavaScript code instantly. Free online JavaScript minifier tool to reduce JS file size for better website performance.

CSS Autoprefixer

CSS Autoprefixer

Automatically add vendor prefixes to your CSS code for cross-browser compatibility. Free online CSS autoprefixer with customizable browser targets.

HTML Formatter

HTML Formatter

Beautify and format HTML code instantly. Free online HTML formatter with proper indentation and syntax highlighting.

JSON Minifier

JSON Minifier

Minify JSON code by removing whitespace and unnecessary characters to reduce file size

Lua Beautifier

Lua Beautifier

Format and beautify Lua code with proper indentation and syntax highlighting. Free online Lua beautifier for clean, readable Lua scripts.

SQL Minifier

SQL Minifier

Minify SQL code by removing unnecessary spaces, indentation and newlines to reduce file size

SVG to JSX Converter

SVG to JSX Converter

Convert SVG images to React JSX components instantly. Paste SVG code and get clean, optimized JSX output ready for your React project.

CSS Grid Generator

CSS Grid Generator

Design CSS grid layouts visually with our free online CSS Grid Generator. Click to place items, drag to span rows/columns, and export clean CSS code instantly.

Curl to JSON Converter

Curl to JSON Converter

Free online Curl to JSON converter. Parse cURL commands into structured JSON format or ready-to-use code snippets for Python, Node.js, PHP, and Go.

Django Secret Key Generator

Django Secret Key Generator

Generate cryptographically secure SECRET_KEY values for Django projects with entropy analysis and one-click copy.

Env File Generator

Env File Generator

Generate .env files for Next.js, Django, Laravel, Express, and more with auto-generated secrets and multiple export formats.

HTML Compressor

HTML Compressor

Compress and minify HTML code online. Remove whitespace, comments, and line breaks to reduce file size for faster page loading.

Base64 File Converter

Base64 File Converter

Convert any file to Base64 encoded string and decode Base64 strings back to downloadable files with preview support. Free online Base64 file encoder and decoder.

Basic Auth Generator

Basic Auth Generator

Generate HTTP Basic Authentication headers from username and password for API testing and web development. Free online Basic Auth header generator.

Bcrypt Generator

Bcrypt Generator

Generate bcrypt password hashes with configurable salt rounds and verify hashes against plain text. Free online bcrypt hash generator and checker.

Benchmark Builder

Benchmark Builder

Compare multiple performance test suites with mean, variance, and ratio analysis. Generate markdown tables and bullet list reports for your benchmarks.

BIP39 Mnemonic Generator

BIP39 Mnemonic Generator

Generate secure BIP39 mnemonic seed phrases for cryptocurrency wallets with customizable entropy and multi-language word list support.

Chmod Calculator

Chmod Calculator

Calculate Unix file permissions in octal, symbolic, and text representations instantly with our free online chmod calculator.

Device Information

Device Information

Instantly view your screen resolution, user agent, browser engine, operating system, hardware details, and network connection properties with our device information tool.

Docker Run to Docker Compose Converter

Docker Run to Docker Compose Converter

Convert docker run commands into clean, ready-to-use docker-compose.yml files instantly with syntax highlighting and copy support.

Email Normalizer

Email Normalizer

Standardize email addresses by removing dots, plus-tag aliases, converting to lowercase, and resolving domain aliases.

Git Commands Memo

Git Commands Memo

An interactive Git cheat sheet with search, categorizations, and real-time custom command parameter inputs.

HTTP Status Codes

HTTP Status Codes

Browse and search all HTTP status codes with descriptions. A complete reference of HTTP response codes from 1xx to 5xx.

IBAN Validator and Parser

IBAN Validator and Parser

Validate, parse, and extract information from IBAN numbers. Check IBAN validity, get country code, BBAN, and friendly format instantly.

Integer Base Converter

Integer Base Converter

Convert integers between any number bases from 2 to 64. Supports binary, octal, decimal, hexadecimal, base64, and custom bases with BigInt precision.

Keycode Info

Keycode Info

Find key code, code, keyCode, location, and modifier information for any keyboard press instantly in your browser.

Math Evaluator

Math Evaluator

Evaluate mathematical expressions instantly with support for trigonometry, logarithms, square roots, and more. Free online math expression evaluator.

MIME Types

MIME Types

Look up MIME types and their associated file extensions. Free online MIME types reference tool with search and complete listing.

OTP Code Generator

OTP Code Generator

Generate TOTP codes, validate one-time passwords, and create QR codes for authenticator apps with our free online OTP code generator tool.

Password Strength Analyzer

Password Strength Analyzer

Analyze password strength with entropy calculation, crack time estimation, and character set analysis using our free online password strength analyzer tool.

Phone Parser and Formatter

Phone Parser and Formatter

Parse, validate, and format international phone numbers with support for multiple output formats using libphonenumber.

Regex Memo

Regex Memo

Quick reference guide for regular expression syntax including character classes, quantifiers, boundaries, groups, and flags. Free online regex cheat sheet.

Regex Tester

Regex Tester

Test regular expression patterns against text with real-time matching, flags support, and detailed match results. Free online regex tester.

SafeLink Decoder

SafeLink Decoder

Decode Microsoft Outlook SafeLinks protected URLs online. Extract the original URL from SafeLinks bypassing link protection to reveal the actual destination.

String Obfuscator

String Obfuscator

Mask sensitive strings by keeping only the first and last characters visible. Perfect for obscuring API keys, tokens, passwords, and personal data.

SVG Placeholder Generator

SVG Placeholder Generator

Create customizable SVG placeholder images with custom dimensions, colors, and text for web development mockups and design prototypes.

Token Generator

Token Generator

Generate random secure tokens with customizable character sets including uppercase, lowercase, numbers, and symbols. Adjustable length up to 512 characters.

TOML to YAML Converter

TOML to YAML Converter

Convert TOML configuration files to YAML format instantly in your browser with real-time conversion, syntax validation, and support for complex nested structures.

ULID Generator

ULID Generator

Generate Universally Unique Lexicographically Sortable Identifiers (ULIDs) instantly in your browser with customizable quantity and format options.

User Agent Parser

User Agent Parser

Parse any user agent string to identify browser name, version, rendering engine, operating system, device model, and CPU architecture with instant results.

YAML to TOML Converter

YAML to TOML Converter

Convert YAML data to TOML format instantly with real-time browser-side conversion. Free online YAML to TOML converter.

Frequently Asked Questions

Straight answers about how Online Mini Tools works.

Are the tools on this website free to use?
Yes, all tools hosted on our website are completely free to use. We believe in providing convenient and useful utilities without any hidden costs or paywalls.
Do I need to create an account to use the tools?
No, you do not need to create an account. Our tools are accessible to everyone visiting our website instantly, without registration or login.
Can I suggest new tools or features?
Absolutely! We welcome suggestions for new tools or features that would benefit you. Please reach out to us at [email protected].
Are the results generated by these tools accurate?
We strive to ensure absolute accuracy in our tools. However, results are determined by the input data provided. We always recommend verifying critical calculations for professional or legal applications.
Are my inputs and results private and secure?
Yes, privacy and security are fundamental. Processing happens entirely client-side on your browser for most tools, and we do not store, view, or log any of your inputs, data, or results.
Are these tools compatible with mobile devices?
Yes, our layout is mobile-first. Every tool adapts beautifully to smartphones, tablets, laptops, and wide screen monitors.

Have an idea?

Didn't find the tool you need?

We're always expanding the collection. Tell us what would make your workflow easier and we'll consider it for the roadmap.

Browser Extension

Get the Online Mini Tools Browser Extensions

Search and launch any tool from your browser toolbar — available for Chrome and Firefox. Access 1300+ tools without leaving your current tab.

Google and the Chrome Web Store badge are trademarks of Google LLC. Firefox and the Firefox Add-ons logo are trademarks of the Mozilla Foundation.