Encode & decode Base64, URL-encoding and Hex. Handles text and binary. Everything runs locally in your browser.
Users
7
−1 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#226K
#189K among extensions
Version
1.0.0
updated 7 Jun 2026
Users
monthly, 4 months
Latest, 16 Oct 2026:7 usersMove the mouse over the chart for any month
Ratings count
monthly, 4 months
Latest, 16 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Base64Lab - Base64, URL & Hex Encoder
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