Image to Base64
Turn an image into a Base64 data URI you can paste directly into HTML, CSS or JSON — no extra file request needed. Everything happens locally.
Drop an image here or click to browse
Any image format
How to use image to base64
- Select an image
Drop or browse for the image you want to encode.
- Pick an output style
Choose a raw data URI, a ready <img> tag, or a CSS background rule.
- Copy or download
Copy it straight into your markup or stylesheet, or download it as a .txt file for very long strings.
Features
Get the raw URI or a complete HTML/CSS snippet.
Get a heads-up if the encoded string is large enough that inlining it isn't a great idea.
Confirm you picked the right image before copying.
The file is read with FileReader in your browser only.
Supported formats and limitations
Common JPG, PNG, WebP, and GIF inputs where supported.
Use cases include personal workflows, content preparation, and quick checks. Review output before relying on it for legal, financial, accessibility, or production decisions.
Frequently asked questions
When should I inline an image as Base64?
It's useful for tiny icons or single-file demos to save a request. For larger images, a normal file is usually more efficient.
Why is the Base64 bigger than the file?
Base64 adds roughly 33% overhead because it represents binary data using text characters.
Does it change the image?
No. It encodes the exact bytes of your file into text; decoding gives back the identical image.
Why does it warn me about large images?
Once an encoded image gets into the tens of KB, inlining it usually bloats your HTML/CSS and stops the browser caching it separately from the page — a normal image file (or download) is often the better choice at that size.