About Base64 Decoder

Base64 Decoder turns a Base64 string back into readable text. Paste the encoded value and the original text appears. It opens in decode mode and runs entirely in your browser.

How to use Base64 Decoder

  1. Paste the Base64 string.
  2. The decoded text appears automatically.
  3. Copy it.

When Base64 Decoder is useful

  • Read an encoded value from a log, token or email
  • Inspect data stored as Base64
  • Check what an encoded string contains

Frequently asked questions

How do I decode a Base64 string?

Paste it into the decoder above. It opens in decode mode and shows the original text.

Why does decoding fail?

The string may contain characters that are not valid Base64, be cut off, or be missing its padding. Check that you copied all of it.

Is Base64 Decoder free?

Yes. You can use Modyfiles tools for free, and you do not need an account for your first 10 files. A paid plan raises the daily limits and the maximum file size.

Do I need to install anything to use Base64 Decoder?

No. It works in your web browser on desktop and mobile, so there is nothing to download or install.

Is my data sent to a server?

This tool runs in your browser, so the text or data you enter is processed on your device.

What else can Modyfiles do besides Base64 Decoder?

Modyfiles has more than 85 free tools for PDFs, images, audio, developers and text in one place. See the related developer tools below, or browse every tool from the tools page.

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