Base64 Encoder / Decoder
Encode and decode Base64 strings, UTF-8 text, and binary files safely in your browser.
Plain Text Input
0 characters
0 bytes
Base64 Encoded Result
0 characters
0 bytes
How to Use Base64 Encoder / Decoder
- Select 'Text to Base64' to encode, or 'Base64 to Text' to decode.
- Type or paste your data into the input field.
- The converted result appears in real time in the output panel.
- Click 'Copy' to copy to clipboard or 'Save' to download as a text file.
About this Tool
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. This tool supports UTF-8 characters and emoji, plus optional URL-safe Base64 encoding.
Frequently Asked Questions
Common questions about Base64 Encoder / Decoder, accuracy, and browser-side security.
No. Base64 is an encoding format designed for safe data transmission across text protocols, not a form of encryption. Anyone can decode a Base64 string back to its original form.
Yes. Our implementation uses standard UTF-8 byte encoders and decoders, correctly handling multilingual characters, symbols, and emoji without corruption.
URL-safe Base64 replaces the '+' and '/' characters with '-' and '_' and omits trailing '=' padding, allowing the string to be placed safely in URLs and query strings.
No. All encoding and decoding runs 100% locally inside your web browser.