About Base32 Encoder and Decoder
Encode and decode data using the Base32 alphabet (RFC 4648), used in TOTP. Base32 Encoder and Decoder runs entirely in your browser — no installation, no uploads, and no data ever leaves your device.
Common use cases: generate totp secret keys for two-factor authentication; encode binary data for case-insensitive systems; debug base32-encoded tokens from authentication libraries. Whether you are debugging, prototyping, or building production code, having a fast and private tool for this task saves time compared to writing one-off scripts or using an online tool that logs your data.
Like every tool in Catalyst, this one is free forever, requires no login, and is safe to use with confidential data. All processing happens client-side via native browser APIs.
How to use Base32 Encoder and Decoder
- 1
Open the tool
Open Base32 Encoder and Decoder directly — no signup or installation required. The interactive interface loads instantly.
- 2
Paste or enter your input
Drop your data into the input area. The tool validates and processes your input live as you type or paste.
- 3
Review the result
The output updates instantly. If the tool has configuration options, adjust them and watch the result update.
- 4
Copy or download
Use the copy button to send the result to your clipboard. Nothing is saved between page loads, so closing the tab discards everything.