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Base32 Encoder and Decoder
Encodes and decodes Base32, the alphabet used by TOTP secrets and some file systems.
Security
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No sign-up
Free, unlimited
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In short
Base32 Encoder and Decoder is a free online tool on inputtesthub.com that encodes and decodes Base32, the alphabet used by TOTP secrets and some file systems. It needs no account, no download and no payment, and there is no daily usage limit. Everything is processed inside your own browser, so the data you paste is never uploaded to a server.
How to use the Base32 Encoder and Decoder
- Type or paste your input.
- The output is produced instantly as you type.
- Press Copy to take the result with you.
About the Base32 Encoder and Decoder
The Base32 Encoder and Decoder encodes and decodes Base32, the alphabet used by TOTP secrets and some file systems. It runs as plain JavaScript inside the page, which means there is no upload step, no queue and no size limit imposed by a server — the only limit is your own device.
What people use it for
- Decoding a two-factor authentication secret.
- Working with systems that use Base32 identifiers.
- Producing case-insensitive encoded values.
Frequently asked questions
Does the Base32 Encoder and Decoder cost anything?
No charge and no sign-up. There is no free tier to run out of because there is no paid tier — inputtesthub.com is funded by advertising rather than by metering the utility.
Is my data uploaded anywhere?
No. The Base32 Encoder and Decoder runs entirely in your browser using JavaScript. Because the work happens locally, the utility also keeps working if your connection drops, and closing the tab is all it takes to discard everything.
What is the Base32 Encoder and Decoder used for?
In practice it gets used for three things: decoding a two-factor authentication secret. Working with systems that use Base32 identifiers. Producing case-insensitive encoded values. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
Will this work on a tablet?
Yes. The page is responsive and the utility works in Chrome, Safari, Firefox, Edge and Samsung Internet on both Android and iOS. There is no app to install and nothing to sign into.
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