QuickTools

JWT Decoder

Decode and inspect JWT (JSON Web Token) header, payload, and signature without server-side verification.

jwt decoderjson web tokenjwt parserjwt inspectordecode jwt online

Drag and drop here or

Supports documents, images, audio, video, and text files

Privacy: This tool runs entirely in your browser. No data is sent to our servers. We don't store, share, or have access to any of the information you process here.

Examples

Example 1
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c
Click above to load example 1

FAQ

Q: Does it verify the JWT signature?

A: No, this tool only decodes (base64url decodes) the token parts for inspection.

Q: Is it safe to paste my token?

A: Yes, decoding happens entirely in your browser. Never share tokens containing production secrets.

Q: What is a JWT?

A: A JSON Web Token is a compact, URL-safe format for representing claims between two parties.

Related Tools

Base64 Encode/Decode

Encode text to Base64 or decode Base64 to text. Supports files.

JSON Formatter & Validator

Beautify, minify, validate, and fix JSON with syntax highlighting.

URL Encode/Decode

URL encode (percent-encode) or decode strings for safe web transmission.

More in Developer Tools

JSON Formatter & Validator

Beautify, minify, validate, and fix JSON with syntax highlighting.

JSON to Go Struct

Convert JSON to Go struct definitions with tags and options.

JSON to TypeScript Interface

Convert JSON to TypeScript interfaces or types.

JSON ↔ YAML Converter

Convert between JSON and YAML formats with preserved structure.

CSV ↔ JSON Converter

Convert CSV files to JSON and JSON to CSV with custom delimiters.

SQL Formatter

Format and beautify SQL queries with syntax highlighting.

Privacy: This tool runs entirely in your browser. No data is sent to our servers.