About This Tool
Our free online Base64 Encoder and Decoder lets you convert plain text to Base64 format and vice versa. Ideal for developers, coders, or anyone working with APIs, authentication tokens, or encoded data. No upload or registration needed — works entirely in your browser.
Enter Text or Base64
Encoded / Decoded Output
Frequently Asked Questions
Q: What is Base64 encoding?
A: Base64 is used to encode binary data using 64 different ASCII characters so it can be safely transmitted over systems that only support text.
Q: Can I decode any Base64 string?
A: Yes! Paste a valid Base64 string and click “Decode from Base64”.
Q: Is this really free?
A: Yes! No cost, no registration, no ads — just enter text and get instant results.
Q: Does it work offline?
A: Yes! Everything runs in your browser — no internet connection needed after loading.
Q: Can I download the result?
A: Yes! Click the "Download Result" button to save the output as `.txt` file.