text
Base64 Encoder and Decoder
Encode text to Base64 or decode Base64 back to text locally.
Local processing. The text you enter is converted in this browser tab only.
How to use Base64 Encode/Decode
- 1Choose encode or decode mode.
- 2Paste text into the input.
- 3Review the output.
- 4Copy the converted text.
Frequently asked questions
What is Base64 used for?
Base64 represents binary or text data using a limited set of safe characters.
Why does decoding fail?
Decoding fails when the input is not valid Base64 or cannot be converted to readable text.
Is my text sent anywhere?
No. Conversion happens locally in your browser.
Related tools
Keep working with other private browser-based utilities.