Base64 Converter
Encode and decode text or images instantly.
Frequently Asked Questions
Is it safe to Base64 encode/decode sensitive data here?
Yes, absolutely. Our Base64 converter processes everything **locally in your browser** using JavaScript. No text, data, or images are ever sent to our servers, ensuring your information remains private.
What is Base64 encoding used for?
Base64 is a coding scheme used to represent binary data (like images or files) in an **ASCII text format**. It is commonly used for **email attachments**, storing complex data in XML/JSON, or embedding images directly into HTML/CSS.
How do I convert an image to Base64?
Switch to the **Image Mode** tab and simply upload or drag-and-drop your image file. The tool will instantly generate the **Data URI string** (e.g., data:image/png;base64...) which you can copy and use in your code.
Does this tool support Unicode characters?
Yes. We have optimized our encoder to handle **UTF-8 characters** (like emojis or non-Latin scripts) correctly, preventing the common "invalid character" errors found in simple btoa() implementations.
Can I use this Base64 tool offline?
Yes. This website is a **Progressive Web App (PWA)**. Once loaded, you can disconnect from the internet and continue to encode or decode text and images without any interruption.