Real-time Base64 encoding, decoding, formatting, and validation with advanced options.
See instant results as you type. Encoding and decoding happen in real-time without any delays.
All processing happens locally in your browser. Your data never leaves your computer.
Automatically detect and validate Base64 strings. Get detailed validation reports.
Format Base64 with configurable line breaks (64 or 76 characters per line).
Get detailed statistics about your data including character counts and encoding ratios.
Download formatted results as text files or copy to clipboard with one click.
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used to encode data that needs to be stored and transferred over media designed to deal with textual data. This ensures that the data remains intact without modification during transport.
To encode regular text to Base64 format:
To decode a Base64 string back to original text:
Use the validation feature to check if a string is valid Base64:
Customize how your Base64 is formatted:
Base64 encoding increases the data size by approximately 33%. Keep this in mind when working with large files. For binary files over 1MB, consider alternative storage or transmission methods.