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Convert Base64

Convert text or file to Base64 and back.

Select files

or drag and drop here

text/plain · up to 50 MB per file 100 MB total

Help and information

How to use

Write text or file as a single Base64 string, or recover data from such a string.

  1. Choose suitable files.
  2. Adjust the result if needed.
  3. Click “Convert Base64” and download the finished file.
Read the full guide
Frequently asked questions
Where is the processing performed?
The tool runs on your device, right in your browser. Files and entered text for this operation are not sent to the server.
What to do if the result is not suitable?
Take the original file or text and try other settings in the steps above. Compare the new result with the previous one. The original files on your device remain unchanged.
Features and limits

Base64 does not hide data with a password: such a string can be converted back. If both file and text are selected, the tool will process the file.

Text → .txt, binary file

Processing in the browser. No files are sent to the server for this operation.

Check the received text or download decoded.bin. If it is an image or other file, after checking its type, replace .bin with the desired extension, for example .png.