Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to text β instant, client-side, nothing leaves your browser.
Result
Enter values to see the result.
How to use the Base64 Encoder / Decoder
- 1Enter your Input.
- 2The result and full breakdown update instantly β no signup, no waiting, and your numbers never leave your browser.
About the Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to text β instant, client-side, nothing leaves your browser. It's a free tool in our developer tools collection on TheCryptoTools, runs entirely in your browser, and works on mobile. If you found it useful, try Unix Timestamp Converter, Fake Crypto Wallet Generator and Fake Crypto Portfolio Generator.
Frequently asked questions
οΌWhat is Base64?
Base64 is an encoding that represents binary data as ASCII text, commonly used in data URIs, JWTs and email attachments.
οΌIs my data sent anywhere?
No. Encoding and decoding run entirely in your browser β nothing is uploaded to a server.
οΌWhy does decoding fail?
The input isn't valid Base64. Check for missing padding (=) or characters outside the Base64 alphabet.
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For educational purposes only. Base64 Encoder / Decoder results are estimates, not financial advice.