Base32 Encoder / Decoder

Encode and decode Base32 strings (RFC 4648).

Free · Runs in your browser · Last updated 2026-05-03

Text

Base32

About this tool

Encode UTF-8 text to RFC 4648 Base32 (used by TOTP, Google Authenticator) and decode back. All in-browser.

Privacy

All processing for Base32 happens locally inside your browser using JavaScript. Your input is never uploaded to a server, logged, or shared with third parties.

Frequently asked questions

Is the Base32 free to use?

Yes. Base32 is completely free for both personal and commercial projects. There are no usage limits, no sign-up, and no premium tier.

Is my data safe when I use Base32?

All processing happens locally in your browser using JavaScript. Your input is never uploaded to our servers, logged, or shared with any third party.

Does Base32 work offline?

Once the page has loaded, the tool runs entirely client-side. You can disconnect from the internet and it will keep working in the same browser tab.

Which browsers are supported?

Base32 works in all modern browsers, including the latest versions of Chrome, Firefox, Safari, Edge, Brave, and Opera, on desktop and mobile.

Do I need to install anything?

No. Base32 runs in any modern web browser with no installation, browser extension, or account required.

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