Base64 Encoder
Encode text or a file to Base64 in your browser, with UTF-8 support and an optional URL-safe alphabet.
Base64 Decoder
Decode Base64 (standard or URL-safe) back to readable UTF-8 text, with clear errors for invalid input.
How to use
- Paste the Base64 string.
- The decoded text appears instantly.
What this tool does
It accepts standard and URL-safe alphabets, ignores whitespace and fixes missing padding before decoding the bytes as UTF-8.
Frequently asked questions
The result looks like gibberish. Why?
The encoded data is probably binary (an image or a compressed file), not text.
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