About the Image to Base64
The Image to Base64 is a free online tool that lets you encode an image into a Base64 data URI for CSS/HTML. With it you can edit and convert images directly in your browser — nothing is uploaded to a server — there's nothing to install and no account to create. Just open the tool, do what you need, and you're done.
It's part of the Image collection on OmniTools, a growing platform of 131+ free, privacy-first tools built for speed and a great experience on every device.
Also known as: data, uri, encode, inline.
Why use the Image to Base64?
- 100% on-device — your photos never leave your computer
- Supports JPG, PNG, WebP and more
- No quality loss unless you choose to compress
- Batch-friendly and lightning fast
When to use it
- Optimising images for a website or blog
- Resizing photos for social media
- Converting formats before uploading
How to use the Image to Base64
- Open the Image to Base64. Open the Image to Base64 on this page — there is nothing to install and no account needed.
- Add your input. Upload your file by clicking the upload area or dragging it in.
- Adjust options. Choose any options you need — the Image to Base64 updates instantly.
- Get your result. Click the action button to download or copy your result. It is 100% free.