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Base64 Decoder

Decode any Base64 string back to its original text or download it as a file. Detects file type automatically.

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Base64 Decoder

Decode any Base64 string back to its original text or binary file.

Waiting for Base64 input…

How to use Base64 Decoder

  1. 1

    Paste the Base64 string

    Drop in any Base64 — standard or URL-safe, with or without padding.

  2. 2

    Get the decoded text

    Valid UTF-8 text appears instantly with a byte count. Binary data is detected and offered as a file download.

  3. 3

    Copy or download

    Copy the decoded text or, for binary content, download the original file.

About Base64 Decoder

Decode any Base64 string back to its original text or download it as a file. Detects file type automatically.

Use Base64 Decoder when you need to decode base64 back to text or files. Review the available options in the interface, process your input, and check the result before saving or copying it.

Frequently asked questions

  • Base64 only uses A–Z, a–z, 0–9, +, /, =, plus - and _ for URL-safe. Stray spaces and newlines are stripped automatically; other characters fail.