About the Image to Base64
Embedding small images as Base64 data URIs saves HTTP requests for icons, email templates and single-file HTML pages. Choose an image and copy the encoded string or the ready-made HTML and CSS code.
How to convert images to Base64
- Choose an image.
- Copy the data URI, HTML or CSS snippet.
Features
- Data URIWith the correct MIME type.
- SnippetsHTML and CSS ready to paste.
- Size infoSee the encoded size overhead.
- PrivateNo upload.
Frequently asked questions
Should I Base64-encode large images?
No. Base64 adds about 33% to the size and cannot be cached separately. Use it for small icons (under ~10 KB).
Is the Image to Base64 free?
Yes. The Image to Base64 is completely free with no sign-up, no watermarks, no daily limits and no premium tier.
Are my files uploaded to a server?
No. FileStripe processes your files locally in your web browser using JavaScript. Nothing is uploaded, so the Image to Base64 is safe for private photos and confidential documents and even works offline once the page has loaded.
Does it work on iPhone and Android?
Yes. The Image to Base64 works in Safari, Chrome, Firefox, Edge and Samsung Internet on phones, tablets and computers. On a phone you can pick files from your photo library or files app and share the result straight to another app.
Last updated · Processing happens locally in your browser.