Base64Lab - Base64, URL & Hex Encoder

About

Encode and decode Base64, URL and Hex - all local, no servers.

Base64Lab is a compact three-in-one encoder/decoder for developers. Switch between Base64 (standard or URL-safe), URL encoding, and Hex output, and swap between encode and decode directions with a single click.

FEATURES:
- Standard Base64 and URL-safe Base64 (for JWT)
- URL encoding (encodeURI and encodeURIComponent)
- Hex encoding with three output formats (spaced / plain / 0x)
- Automatic UTF-8 handling for non-ASCII characters
- Byte-length stats for each conversion
- One-click copy for input and output
- Runs completely offline, no servers involved

HOW TO USE:
1. Click Base64Lab
2. Pick a tab: Base64, URL, or Hex
3. Paste your text into Input
4. Click Encode or Decode
5. Copy the result

A project by lern-digital.de