Base64 Decode
Decode Base64 back into readable text instantly.
Paste a Base64 string to turn it back into the original readable text. It is the counterpart to encoding: decode tokens, data-URL payloads, or any Base64 blob you have received. Decoding runs entirely in your browser, and if the input is not valid Base64 the tool tells you clearly instead of returning scrambled characters.
How to use the Base64 Decode
- Paste the Base64 string into the input box.
- The decoded text appears instantly in the result box.
- Copy the decoded text with the Copy button.
Frequently asked questions
Why do I get an error?
The input is not valid Base64 — check for missing characters or extra spaces that may have been added when copying.
Does it handle Unicode and emoji?
Yes. The decoded bytes are interpreted as UTF-8, so emoji and accented characters come back intact.
Can it decode a data URL?
Paste only the part after "base64," — this tool decodes the Base64 payload itself, not the whole data: prefix.