Encode text to Base32 and decode Base32 back to text instantly. Supports RFC 4648 standard. Pure client-side, no server upload.
Base32 is a binary-to-text encoding scheme that represents binary data in an ASCII string format using a 32-character set (A-Z and 2-7). It is defined in RFC 4648 and is commonly used in applications where case-insensitive encoding is required, such as DNS records, QR codes, and cryptographic keys. This tool lets you encode any text to Base32 or decode Base32 back to plain text instantly — entirely in your browser with no server upload.
Base32 is used when you need a case-insensitive encoding, such as in DNS names, QR codes, OTP secrets (like Google Authenticator), and situations where special characters might cause issues.
Yes, completely free. No signup, API key, or usage limits.
No. All encoding and decoding happens entirely in your browser. Your text is never uploaded to any server.
Base32 uses a 32-character alphabet (A-Z, 2-7) and is case-insensitive. Base64 uses 64 characters (A-Z, a-z, 0-9, +, /) and produces shorter output but is case-sensitive. Base32 is preferred when case sensitivity or special characters are problematic.
The "=" characters are padding added to make the output length a multiple of 8 characters, as required by the RFC 4648 standard. They contain no data and can be removed or re-added during decoding.
This tool performs Base32 encoding and decoding according to RFC 4648. For critical cryptographic operations, please verify output against a trusted implementation.