JSON & data
JSON Formatter & Validator
Format, minify and validate JSON, with clear parse errors.
Open tool →Developer utilities
JWT Decoder
Decode and inspect a JWT header and payload. This is not a signature check.
Warning: inspection only.
Decoding does not verify the signature, issuer, audience or expiry. Do not trust any decoded content. Never paste a signing secret here.
Paste a JWT to read its header and payload. Decoding happens in your browser, and the token is not sent anywhere.
Paste a JWT to decode it.
Header
Nothing to show yet.
Payload
Nothing to show yet.
Privacy: this tool runs in your browser. The data you enter is not sent to a server.
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Base64 Encoder & Decoder
Encode and decode text in Base64, with Unicode support.
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UUID Generator
Generate UUIDs, including bulk generation.
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URL Encoder & Decoder
Encode and decode URL components, with examples.
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Image Compressor
Compress JPEG, PNG and WebP images in your browser. Files are never uploaded.
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