Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 back to text.
Private
Instant
Free forever
Base64 Encoder / Decoder — Free Online
Convert text to Base64 or decode Base64 back to readable text — with full Unicode support, entirely in your browser.
How it works
01
Enter Text
Type or paste text or Base64.
02
Choose Mode
Click Encode or Decode.
03
Copy Result
Copy the converted output.
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Frequently Asked Questions
Base64 encodes binary data using only 64 printable characters, which inflates size by about 33% — that overhead is normal and expected.
This tool works on typed or pasted text. Encoding a file would need a file-specific Base64 encoder.
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