Base64 Studio
Encode and decode Base64 data with advanced options.
Plain Text / Input
Size: 0 bytes Base64 Result
Size: 0 bytes
Free online tool to encode text to Base64 or decode Base64 strings instantly. Supports URL-safe encoding, file handling, and works entirely in your browser for complete privacy.
How to Use This Base64 Encoder/Decoder
- 1Enter your text in the input field or paste Base64 encoded content
- 2Select 'Encode' to convert text to Base64, or 'Decode' for the reverse
- 3Toggle 'URL Safe' to use URL-compatible Base64 encoding
- 4Copy the result with one click or use it directly
Features
- ✓Real-time encoding and decoding
- ✓URL-safe Base64 variant support
- ✓Handles special characters (UTF-8)
- ✓File to Base64 conversion
- ✓100% browser-based processing
- ✓No data sent to servers
- ✓Works offline after first load
What is Base64 Encoding?
Base64 is a binary-to-text encoding scheme that represents binary data as ASCII characters. It's commonly used to embed images in HTML/CSS, encode data in URLs, transmit binary data over text-based protocols like email or JSON APIs, and store complex data in configuration files. The 'URL-safe' variant replaces + and / with - and _ to work in URLs without escaping.