Free · In-Browser · No Upload
Image to Base64 Online
Convert an image into a Base64 data URI and copy ready-to-paste snippets for HTML, CSS and JSON. Handy for emails, inline icons and quick prototypes.
- No upload — 100% private
- Instant, in-memory processing
- Free, no sign-up, no watermark
Step by step
How to use Image to Base64
- 01
Step 1
Choose a direction
Encode an image to Base64, or paste Base64 to decode it back to an image.
- 02
Step 2
Add your data
Drop an image file, or paste a data URI / raw Base64 string.
- 03
Step 3
Copy or download
Copy the snippet you need, or download the text or decoded image.
Help & clarification
Frequently Asked Questions
What is a Base64 data URI?
It's a text representation of a file that can be embedded directly in HTML, CSS or JSON — so the image loads without a separate request.
Why is the Base64 version larger?
Base64 encoding adds about 33% overhead. It's best for small icons and images; large images are better served as normal files.
Are my images uploaded to a server?
No. Every operation runs locally in your browser using the HTML5 Canvas engine. Your files never leave your device, so they stay completely private.
Is this tool free to use?
Yes — it's completely free with no sign-up, no watermarks added to your output and no daily limits.
Keep creating
Related Tools
Image Color Picker
Pick any pixel colour and extract a palette from your image.
Favicon Generator
Create favicon.ico and app icons in every size from one image.
PNG to JPG
Convert PNG transparent images to standard JPG formats.
JPG to PNG
Convert JPG photos to lossless PNG graphic format.