Image tool · Free
Image to Base64
Encode an image as a Base64 data URI with ready-to-copy HTML and CSS snippets. Nothing is uploaded.
- Runs in your browser — files are not uploaded
- Input: jpg, jpeg, png, webp, gif, svg → txt
- Up to 25 MB per file
How to use Image to Base64
- 1
Add a JPG, PNG, WEBP, GIF or SVG image.
- 2
Click Encode to Base64.
- 3
Copy the format you need, or download the .txt file.
About this tool
Base64 data URIs let you embed small images directly in HTML, CSS, JSON or email templates without a separate file. Add an image and get the data URI, the raw Base64 string, an <img> tag and a CSS background rule, each with a copy button, plus a .txt download. Encoding happens in your browser.
Good to know
- Base64 output is about one third larger than the original image.
- Very long strings are shown shortened on screen; copy or download for the full value.
Frequently asked questions
When should I use Base64 images?
For small icons and images where saving an extra request matters, such as email templates or single-file HTML. Base64 is about 33% larger than the original file, so avoid it for large photos.
Which MIME type is used?
It is taken from the file type: image/jpeg, image/png, image/webp, image/gif or image/svg+xml.
Is Image to Base64 private?
Yes. This tool processes files entirely in your browser, so your files are not uploaded to our servers.
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