Base32 Decoder & Encoder: RFC 4648 & TOTP Key Conversion

Decode and encode Base32 strings according to RFC 4648 standards. Ideal for 2FA TOTP secrets, DNS labels, and case-insensitive transmission.

Plain Text Input
Encoded Output

How to Use Base32 Decoder & Encoder

  1. Type or paste your input into the editor above.
  2. Toggle between Encode and Decode mode depending on your input data.
  3. Inspect the live converted output instantaneously.
  4. Copy or download the transformed output with one click.

Practical Examples

Direct Transformation

Fast client-side BASE32 processing.

Input:
Hello
Output:
Converted

Common Mistakes & Troubleshooting

  • Mixing characters with separators: Ensure binary sequences have multiples of 8 bits and hex characters are valid 0-9 and a-f.

Frequently Asked Questions

Is Base32 Decoder & Encoder secure?

All conversions happen 100% locally in your browser. Nothing is sent to our servers.