Base64 Encoder / Decoder
Encode text to Base64 and decode Base64 to text. Works entirely in your browser.
Developer Tools: use this free online base64 encoder / decoder in your browser. No signup, no data sent to our servers—instant results.
What this tool does & how to use it
What is this tool?
The Base64 encoder and decoder converts text or binary data to Base64 encoding and back. Base64 is often used to embed small images or data in URLs, HTML, or JSON without breaking the format. This tool works with text input and output in the browser.
How to use it and use cases
Paste or type text in the input, then encode or decode as needed. Copy the result for use in your project. Common uses: embedding small images as data URLs, encoding credentials or tokens for APIs, and debugging payloads.