Inspect JWT headers and payloads locally without validating or uploading tokens.
Related utilities
Encode or decode URLs and HTML entities entirely in your browser.
Generate cryptographically random UUID v4 values locally.
Generate SHA-256, SHA-384, SHA-512, or SHA-1 digests locally.
Test JavaScript regular expressions and review matches instantly.
Convert Markdown text into clean HTML entirely in your browser.
Convert a JSON array of objects into CSV, with nested fields flattened.
Parse CSV text and convert it to a JSON array of objects.