URL & Payload Encoding Suite
Base64URL, Hex, Gzip/Deflate, and Querystring conversions in one place. Everything runs locally in your browser.
Common use cases
- Encode JWT payloads with Base64URL and inspect raw claims.
- Compress API payloads with gzip/deflate to debug network traffic.
- Convert querystrings to JSON for quick inspection or editing.
Choose a function
Input
Output
Notes
- Base64URL follows RFC 4648 URL-safe encoding with optional padding.
- Gzip/deflate uses the native Compression Streams API when available, with a local fallback.
- No network calls: all processing stays in your browser tab.