JSON & data
JSON Formatter & Validator
Format, minify and validate JSON, with clear parse errors.
Open tool →JSON & data
Compare two JSON inputs and highlight additions, removals and changes.
Paste two JSON documents to see what was added, removed or changed. Key order is ignored, and arrays are compared by position.
Paste JSON here.
Paste JSON here.
Paste valid JSON in both boxes to compare them.
Privacy: this tool runs in your browser. The data you enter is not sent to a server.
JSON & data
Format, minify and validate JSON, with clear parse errors.
Open tool →JSON & data
Convert CSV with headers and basic quoting into JSON.
Open tool →Developer utilities
Decode and inspect a JWT header and payload. This is not a signature check.
Open tool →Encoding & decoding
Encode and decode text in Base64, with Unicode support.
Open tool →Developer utilities
Generate UUIDs, including bulk generation.
Open tool →Encoding & decoding
Encode and decode URL components, with examples.
Open tool →Image & media
Compress JPEG, PNG and WebP images in your browser. Files are never uploaded.
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