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Tool Factory

Encoding & Number Bases

Base45 Decoder

Decode Base45 input into a usable result. Enter the data, choose the input and output formats, then copy the result.

Tool workspace

Your input stays in this browser.

Add the required input to continue.

Needs input

You can run the tool again after any change.

Options

Your result appears here

Decode Base45 input into a usable result. Enter the data, choose the input and output formats, then copy the result.

This tool runs open-source code from CyberChef by GCHQ (Apache License 2.0). See open-source credits.

Base45 Decoder converts data between formats in your browser. For a correct result, preserve the exact Base45 symbols.

decoded bytes for the encoded payload Processing runs in the browser.

Instructions

  1. Provide text or data for this tool.
  2. Use the Base45 decoder defaults.
  3. Compare the output with a known Base45 Decoder sample.
  4. Keep the original value until the receiving system accepts the result.

Example

Input: UJCLQE7W581

Settings: Base45 Decoder: use the Base45 decoder defaults

Result: decoded bytes for the encoded payload

Limits

  • Base45 Decoder: invalid characters stop reliable decoding
  • Base45 Decoder: The operation does not detect a different input format automatically.
  • Base45 Decoder: Processing stays in the browser.

Questions

How do I decode Base45 data?

Paste the encoded value and use its matching Alphabet. The operation converts Base45 groups into bytes. If those bytes contain another format, process that format separately instead of assuming the first result must be text.

Should I remove spaces from a Base45 string?

No, not automatically. A space belongs to the default Base45 alphabet and can carry data. Preserve the original value when copying it from a QR payload. Unrelated line breaks and meaningful spaces need different treatment.

Why does the Base45 decoder report an invalid group?

A character can fall outside the alphabet, or a group can represent a value larger than its byte range. Check for a missing symbol or the wrong alphabet. Filtering non-alphabet characters does not repair a damaged payload.