Base32 encoder / decoder
Encode or decode Base32 (RFC 4648) in your browser. Text stays in this tab.
No uploads. No account. Free to use.
- Files never leave your device
- Runs entirely in your browser
- No signup required
- Free
What is base32 encoder / decoder?
Base32 encode/decode implements RFC 4648 in the tab (alphabet A–Z and 2–7).
How to use it
- Paste text or Base32.
- Encode or decode locally.
- Copy the result.
When to use it
TOTP secrets and some keys travel as Base32. Decoding them on a random website is unnecessary.
Frequently asked questions
Are my files uploaded?
No. This tool runs in your browser. Files and text stay on your device and are not sent to our servers.
Does this use AI?
No. It is a deterministic utility. There is no model and no third-party processing of your data.
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