What it does
ActuallyFreeTools encodes text to Base64 and decodes it back for free, with full Unicode support so Arabic, emoji and accented text survive the round trip. You can also turn a small file into a data URL for embedding in HTML or CSS. Everything runs locally in your browser.
How to use it
- Paste text or Base64, or drop a file.
- Click Encode or Decode.
- Copy the result.
Questions people ask
Is Base64 encryption?
No. It is an encoding anyone can reverse. Use it to carry data, never to hide it.
Why does decoding fail?
Usually stray spaces, line breaks or a missing character. Data URLs are handled automatically.
How big can files be?
Data URLs work best under about a megabyte.
Is Base64 encoder on ActuallyFreeTools really free?
Yes. There is no sign-up, no daily limit, no watermark and no paid tier. Nothing is held back for paying users.
Are my files uploaded anywhere?
No. Base64 encoder runs inside your browser, so your files are processed on your own device and never sent to a server. That is also why there is nothing to meter or charge for.
Related tools
Last updated 30 October 2026. ActuallyFreeTools tools run entirely in your browser.