Real-time Base-32 Converter
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Base-32 String Validator
Enter a Base-32 string to check its validity according to RFC 4648 or Crockford standards, including padding and checksums.
Base-32 Reference
Base-32 Alphabets
RFC 4648: Standardized, uses padding (`=`).
ABCDEFGHIJKLMNOPQRSTUVWXYZ234567
Crockford: Designed for human readability, no padding, checksum support.
0123456789ABCDEFGHJKMNPQRSTVWXYZ
Comparison of Standards
| Feature | RFC 4648 | Crockford |
|---|---|---|
| Case-Sensitive | No (uppercase recommended) | No (input can be mixed case) |
| Padding Character | = | None |
| Confusing Chars | Includes I, L, O, 1, 0 | Excludes them. Maps I, L -> 1 and O -> 0 on decode. |
| Checksum | No | Yes (optional, single character suffix) |
| Primary Use | MIME, DNSSEC, standardized data transfer | Generating human-readable/typable IDs |