JSON & data
JSON Diff Checker
Compare two JSON inputs and highlight additions, removals and changes.
Open tool →JSON & data
Format, minify and validate JSON, with clear parse errors.
Paste JSON to validate it, then format or minify it. Errors show the line and column where parsing failed.
Paste JSON to get started.
Privacy: this tool runs in your browser. The data you enter is not sent to a server.
JSON & data
Compare two JSON inputs and highlight additions, removals and changes.
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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