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Developer text utilities3 tools

Text Tools

Generate UUIDs, inspect JWT headers and payloads, and create SHA digests for development, testing, and troubleshooting tasks.

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Each page explains its purpose, provides focused controls, and identifies important limitations before you use the result.

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UUID Generator

Generate one or many RFC 4122 version 4 UUIDs for tests, fixtures, and identifiers.

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JWT Decoder

Decode JWT header and payload claims locally without validating or uploading the token.

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Hash Generator

Generate SHA hashes for text input using browser cryptographic APIs.

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Practical guidance

Common text workflows

Start with the task you need to complete, then move to another tool only when the workflow calls for it.

  1. 01

    Create test identifiers

    Generate one or more version 4 UUIDs for fixtures, seed data, demos, or temporary development records.

  2. 02

    Inspect token claims

    Decode a JWT header and payload to review claim values while debugging an authentication flow.

  3. 03

    Compare text digests

    Generate a SHA digest for text and compare it with another value during checksum or signing-input checks.

Important to know

JWT decoding does not verify a signature or prove that a token is authentic. Avoid treating decoded claims as trusted data without server-side validation.

Text Tools questions

This collection includes UUID Generator, JWT Decoder, Hash Generator.