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Base64 Encode/Decode Online
Encode plain text to Base64 or decode Base64 text.
Runs in your browserNo upload requiredNo signup required
Base64 converter
Encode plain text or decode valid Base64 text.
Workflow
- 1Choose Encode or Decode mode.
- 2Paste text into the input box.
- 3Run the converter.
- 4Copy the output when it is ready.
FAQ
Does this Base64 tool upload my text?
No. Encoding and decoding happen directly in your browser.
Can it handle Unicode text?
Yes. The encoder preserves Unicode text such as accented letters and symbols.
What happens with invalid Base64?
The tool shows a clear error and does not produce misleading output.