Base64 Decoder
Decode Base64 text back to UTF-8 in your browser.
Whitespace in the input is ignored. Invalid Base64 shows an error.
What is Base64 decoding?
Decoding reverses Base64 into the original UTF-8 text when possible.
How to decode Base64
- 1
Paste Base64
Whitespace in the input is ignored where possible.
- 2
Decode
Invalid Base64 shows an error; valid input becomes UTF-8 text.
- 3
Copy text
Copy the decoded string.
Base64 Decoder FAQ
Binary output?
Decoded bytes are shown as UTF-8 text. Non-text binaries may look garbled.
Padding?
Standard padded Base64 works; malformed strings fail clearly.
Uploaded?
No.
Related tools?
Base64 Encoder; JWT Decoder.