Image Compressor
Shrink JPG, PNG and WebP file sizes for faster pages, several files at once.
Image to Base64 Converter
Encode images as Base64 data URIs for HTML and CSS, and decode them back.
Runs in your browser. Your images are never uploaded.
How to use the Image to Base64
Embed small icons and images directly in HTML, CSS or email templates as Base64 data URIs. Copy the ready-made snippet, or paste a Base64 string to preview it and save it as an image file.
- Add an imageOr paste a Base64 string to decode it.
- Pick the snippetData URI, CSS background or HTML img tag.
- CopyPaste it into your code.
Need it done by hand? Try our vector conversion service
Hand-traced vector files from low-resolution logos, sketches and artwork.
Image to Base64 questions
Everything you need to know before sending your first images. Still unsure? Ask us anything.
When should I use Base64 images?
For very small images such as icons, where saving an extra request matters. For photos, normal image files load faster.
Why is the Base64 text bigger than the file?
Base64 encoding adds about 33% to the size. That is normal.
Is this tool free?
Yes, completely. There is no sign-up, no watermark and no usage limit.
More free tools
All tools
You might also need
Image Converter
Convert between JPG, PNG and WebP, with a background colour for transparent images.
EXIF Remover
See what metadata a photo contains, including GPS location, and strip it.
Ready to make your photos sell?
Send a few images and tell us what you need. You get an exact price and delivery time within one business day, with no obligation.