Image to Base64 Converter
Upload an image to get its Base64-encoded string or a ready-to-paste data URI — free and processed entirely in your browser.
About the Image to Base64 Converter
Base64 is a way of representing binary data — like an image — as plain text, which is exactly what's needed to embed an image directly inside HTML, CSS, or JSON instead of linking to a separate file. It's a common trick for small icons and logos, since it saves the browser an extra network request.
This tool reads your image and encodes it to Base64 entirely in your browser, with the option to output either the raw Base64 string or a ready-to-paste data:image/...;base64,... URI. Nothing is uploaded to a server.
How to Convert an Image to Base64
Step 1
Upload your image
Drag and drop a PNG, JPG, WEBP, or other image file, or choose one from your device.
Step 2
Choose your output format
Toggle whether to include the data: URI prefix, ready to paste directly into HTML or CSS.
Step 3
Copy or download
Copy the Base64 string to your clipboard, or download it as a text file.
Frequently Asked Questions
What's the difference between the raw string and the data URI?
The raw string is just the encoded data; the data URI adds a data:image/png;base64, prefix (matching your image's type) so it can be pasted directly into an <img src="">, a CSS background-image, or JSON.
Why embed an image as Base64 instead of linking to a file?
Saves a separate HTTP request — good for small icons, logos, or email HTML (where external images are often blocked). For large images, separate files are usually better, since Base64 makes data about 33% larger.
Can I convert Base64 back into an image file?
Yes — this tool also decodes Base64 back into a downloadable file; switch to 'Decode' mode.
Is my image uploaded anywhere?
No. Reading and encoding happen entirely in your browser.