Online Base32 Codec
Encode and decode Base32 with UTF-8 support and instant two-way conversion. 100% private, all processing in your browser
Two-Way Convert
Switch between encode and decode
Privacy First
Your data never leaves your device
UTF-8 Support
Handles multilingual characters
Instant Results
Real-time conversion as you type
Frequently Asked Questions
What is Base32 encoding?
Base32 encodes binary data into a 32-character ASCII alphabet (A–Z and 2–7) so it can travel safely through systems that only handle text, such as emails and certain databases.
Will my data be uploaded to a server?
No. All encoding and decoding is done locally in your browser. Your text never leaves your device, fully protecting your privacy.
Does it support Unicode characters?
Yes. The tool encodes text as UTF-8 bytes first, so Chinese, Japanese, emoji, and other multilingual characters are handled correctly.
When should I use Base32 instead of Base64?
Use Base32 when the target system is case-insensitive or only accepts a limited character set, such as TOTP authenticator secrets and human-typed ticket codes.
Is this tool free to use?
Completely free. This is a pure frontend online tool - no registration required, no payment needed, just open and use.
What happens with invalid input when decoding?
If the input contains characters outside the Base32 alphabet or has invalid padding, an error message explains the problem so you can fix the input.
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