Encode and decode UTF-8 text strings directly in your browser.
Base64 is a binary-to-text encoding scheme that translates binary data into an ASCII string format by representing data in a radix-64 representation.
It is commonly used to transfer media, credentials, and raw bytes across channels designed strictly for textual data, such as HTTP headers and JSON bodies.
Your device powers this tool. Zero cloud uploads.
All file processing, calculations, and conversions run entirely inside your browser using your device's CPU and memory. Your data never touches any external server.
Processing speed depends on your device's hardware. Handling heavy media or large documents may temporarily utilize local RAM and processor capacity.
Provided on an “as is” basis without warranties of any kind. Always keep backups of critical source files. Subject to our terms.