8 tools available

Data Tools

Diff, view and convert structured formats.

Compare JSON and YAML, view TOML, and convert between structured serialization formats — all in your browser.

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JSON Diff

Compare two JSON documents and highlight differences.

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YAML Diff

Compare two YAML documents side by side.

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TOML Viewer

Parse and pretty-print TOML with syntax validation.

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8 utilities, sorted by popularity.

8 total

TOML ↔ JSON Converter

Convert between TOML and JSON bidirectionally.

TOML Diff

Compare two TOML files and highlight changes.

Protobuf Converter

Encode and decode protobuf messages from a .proto schema and JSON.

Avro Converter

Encode and decode Avro records from a JSON schema.

TOON Converter

Convert between TOON and JSON token-oriented object notation.

Why people use them

Built for speed, designed for trust

Privacy first

Every transformation happens locally in your browser. Nothing is uploaded — even sensitive content stays on your device.

Instant results

No spinners, no servers, no waiting. Tools react as you type, so you stay in your flow.

No account, no limits

Use everything for free, forever. There is no signup, no quota and no upsell hidden in a side panel.

About Data Tools

Structured data is everywhere in modern development. These tools help you inspect, compare and convert between formats without leaving your browser or uploading sensitive payloads.

#json-diff #yaml-diff #toml-viewer #protobuf-converter #data-diff

Photos by Unsplash contributors — unsplash.com .

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