Base36 Encoder And Decoder

Convert text to uppercase Base36, or decode Base36 text back to plain text.

Question

What is Base36?

Base36 is a compact text representation that uses the ten digits and the twenty-six English letters. It is useful when you need short, case-insensitive-looking tokens made from characters that are easy to copy, paste, and place in URLs or filenames.

This tool converts plain text into a Base36 token and decodes Base36 tokens back to text. Decoding accepts lowercase letters, while encoded output is always uppercase.

Use Base36 for representation, not for secrecy. It is not encryption, signing, compression, or validation for an application-specific identifier. This page expects plain text or a continuous Base36 token and does not support fractions, separators, whitespace inside tokens, or scientific notation.

Code

Supported Alphabet

The supported Base36 alphabet is:

0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ

For example, Nerdmosis encodes to 8H77RKJSC7GLTF. Characters outside the alphabet, such as punctuation or hyphens, are rejected when decoding.

Books

References

Keep the flow going

More tools to try

Jump into another Nerdmosis shortcut picked from the toolbox.

Uuencode and Xxencode Text Encoder and Decoder Encode and decode Uuencode and Xxencode text using an online tool. Base65536 Encoder and Decoder for UTF-8 Unicode Text Encode and decode qntm Base65536 text locally in your browser. SHA3-384 Hash Generator for 96-Character Hex Digests Generate a SHA3-384 digest from text locally in your browser. Text Diff Checker: Compare Text Line by Line Locally Compare two text blocks locally with a line-by-line diff.