Avro Formatter
Format and minify Apache Avro schema JSON with validation and instant browser-side output.
What Is Avro Formatter?
Avro Formatter pretty-prints or minifies Apache Avro schema JSON (commonly stored in .avsc files).
It helps you review records, enums, unions, and defaults with consistent indentation before committing schemas to
version control.
How It Works
The tool parses JSON text locally, then writes either a two-space indented view or a single-line minified view. If your file has minor syntax issues, use the repair action to run a JSON repair pass and then format the recovered structure.
How to Use It
- Paste an Avro schema or open a sample record definition.
- Choose Pretty print, Minify, or Repair JSON then format.
- Copy or download the output for pipelines, code review, or documentation.
Frequently Asked Questions
Does this validate Avro semantics?
It validates JSON syntax only. You should still run your Avro toolchain (for example codegen or schema registry checks) for full protocol rules.
Can I format Avro binary payloads here?
No. Binary Avro data is not JSON; this formatter is meant for JSON-encoded schemas or JSON serializations that you can paste as text.
When should I use repair mode?
Use it when a file almost parses but contains trailing commas, missing quotes, or similar issues. After repair, inspect the output to ensure the structure still matches your intent.
Is my schema uploaded anywhere?
No. Formatting happens entirely in the browser; your schema text never leaves your session.
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