Every tool you need. Nothing you don't.
A growing library of fast, focused web utilities, free to use, no account required, and built to stay out of your way.
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2300+
Tools available
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Most tools run in your browser for speed and privacy.
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The catalog in numbers
Fast, focused utilities for everyday workflows, free to use, no sign-up, no usage caps.
100K+
Monthly users
Developers, designers, and creators rely on our tools every month.
256K+
Monthly tool executions
Calculations and conversions run directly in your browser, fast and private.
2300+
Free tools
A growing library covering text, code, math, images, and more.
0
Data stored
Everything runs client-side. Your inputs never leave your browser.
Recently added
The latest tools in the catalog
GraphQL to cURL
Turn a GraphQL operation, variables, and endpoint into a ready-to-run cURL POST command.
HAR to cURL
Parse HAR capture JSON and generate equivalent cURL commands for debugging API calls in your browser.
Braille Translator
Convert plain text to Unicode Braille and decode Grade 1 Braille back to letters in your browser.
Base64 to File
Decode Base64 strings or data URIs and download the binary file with MIME sniffing and a custom filename in your browser.
Avro Schema Validator
Check Avro .avsc JSON structure, summarize records, enums, unions, and field types with instant browser-side validation.
Avro Schema Evolution Checker
Diff two Apache Avro record schemas for added, removed, and changed fields with reader-writer compatibility hints in the browser.
AES GCM File Encrypt Decrypt
Encrypt or decrypt files with AES-256-GCM and a passphrase in your browser. PBKDF2 key derivation, no uploads to a server.
Add Business Days
Add or subtract business days from a start date, skipping weekends and custom holidays. Free working-day calendar calculator in your browser.
YAML to CSV Converter
Turn YAML arrays of objects into spreadsheet-ready CSV with flattening, delimiters, and a live table preview.
Unicode Character Finder
Browse and search Unicode symbols by name or code point, then copy characters, HTML entities, and escapes.
Tool Chainer
Build multi-step text pipelines with encoding, hashing, formatting, and find-replace processors entirely in your browser.
Sign PDF
Draw, type, or upload a signature and place it on any PDF page. Files never leave your browser.
SVG Path Editor
Edit SVG path d attributes with live preview, command breakdown, and absolute, relative, round, and normalize actions.
NPM Package Explorer
Search the npm registry, inspect bundle sizes from Bundlephobia, and copy CDN script tags and import URLs.
Character Frequency Analyzer
Count how often each letter and symbol appears in text with case-sensitive options and English frequency comparison.
Hex Dump Viewer
Upload a file or paste text to view color-coded hex dumps with offset, ASCII columns, and byte search in your browser.
JSON Array to CSV Converter
Turn a JSON array of objects into CSV with configurable delimiters, dot-notation flattening, and download support in your browser.
SQL Mock Data Generator
Parse CREATE TABLE statements and generate realistic INSERT rows or CSV/JSON test data entirely in the browser.
GitHub Actions Workflow Generator
Build ready-to-commit GitHub Actions workflows for Node.js CI, Python tests, Vercel deploy, and scheduled cron jobs.
Design Token Converter
Convert W3C DTCG, Figma, and flat JSON design tokens to CSS variables, SCSS, and Tailwind theme snippets in your browser.
Hosts Per Subnet Calculator
Find usable host counts from IPv4 prefix length or subnet mask, including /31 and /32 edge cases.
IPv4 IPv6 Subnet Calculator
Calculate network, broadcast, host range, and usable addresses from CIDR notation for IPv4 and IPv6.
SQL Sandbox
Load local CSV or JSON files into an in-memory SQLite database and run SELECT queries without uploading data.
PEM to JWK Converter
Import RSA or EC PEM public and private keys and export RFC 7517 JSON Web Keys in your browser with Web Crypto.
Browse by category
44 categories, pick one to explore its tools
Agriculture & Horticulture
39 tools
ASCII Tools
26 tools
Audio & Video Tools
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21 tools
Color Tools
43 tools
Construction & Real Estate
164 tools
Data Conversion
86 tools
Developer Tools
289 tools
Education Tools
17 tools
Electrical & Electronics
35 tools
Encoding & Encryption
80 tools
Engineering Fluid Mechanics
55 tools
Environment Sustainability
38 tools
Finance Calculators
527 tools
Food Cooking
87 tools
Fractal Generators
45 tools
Gaming Tools
33 tools
Health & Fitness
375 tools
Image Manipulation
134 tools
Lifestyle Entertainment
49 tools
List Tools
46 tools
Manufacturing & Machining
23 tools
Math Calculators
443 tools
Miscellaneous tools
1753 tools
Name Generators
11 tools
Network Tools
25 tools
Numerology & Esoteric
18 tools
Paycheck Calculators
70 tools
PDF & Document Tools
5 tools
Physics & Chemistry
170 tools
QR & Barcode Tools
6 tools
Random Generators
59 tools
Real Estate Finance
50 tools
Social Media Tools
33 tools
Statistics & Data Analysis
131 tools
Text Editors & Viewers
6 tools
Text Processing
101 tools
Time & Date
159 tools
Travel & Automotive
50 tools
Unicode Tools
43 tools
Unit Converters
180 tools
Utilities
47 tools
Weather & Environment
6 tools
Web & SEO Tools
27 tools
No categories match your search.
Coming soon
New mini-tools we're building next.
Html to Jsx
Convert HTML file to JSX online
Instagram Reel Downloader
Download and save Instagram videos locally with our Instagram Reel Downloader. No signup required.
Angular Velocity Calculator
Calculate angular velocity from angle, time, linear speed, and radius with unit conversions between rad/s and RPM.
Always free
No subscriptions, credits, or paywalls. Every tool on the site is free to use.
Privacy first
Processing happens client-side whenever possible. Your data never leaves your browser.
Organized by category
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Latest blog posts
Tips, guides, and how-tos for the tools you use
Schema Markup Generator Guide: JSON-LD Structured Data for SEO
Learn JSON-LD schema markup, rich results eligibility, and GEO-friendly structured data. Build valid Schema.org tags with a free generator.
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Online Grocery List: How to Build and Organize Your Shopping List
Make a categorized grocery list online, check off items as you shop, and track progress. Free browser tool with local save. No app required.
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Wheel of Names Online: How to Run a Fair Random Name Picker
Paste names, spin the wheel, and pick winners for class, raffles, and meetings. Fair random name picker with themes, sound, and remove-winner mode.
Read article
Twitter Profile Picture Downloader: How to Save X Avatars in HD
Download Twitter and X profile pictures in the best public resolution. No login. Learn avatar sizes, CDN URLs, privacy, and legal use.
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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.
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