Free Base64 Encoder
Easily encode text to Base64 or decode Base64 strings back to text. A fast, free, and secure online tool for developers.
Frequently Asked Questions
What is Base64?
Base64 is a group of binary-to-text encoding schemes that represent binary data in an ASCII string format. It's commonly used to encode data that needs to be stored and transferred over media that are designed to deal with textual data.
Is this tool secure?
Yes, all processing happens locally in your browser via JavaScript (`btoa` and `atob` functions). No data is sent to our servers.
Can I decode any string?
You can only decode valid Base64 strings. If the string contains characters not in the Base64 alphabet or has incorrect padding, decoding will fail.