What is Image files?
Binary formats — PNG, JPG, WebP — that normally live as separate files with their own requests, caching rules and paths relative to your page.
Image to Base64
Convert an image to a Base64 data URI
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Image to Base64
Drop your files here
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How to encode an image as Base64
Drop your image
Load a PNG, JPG or WebP — it is read locally, never uploaded.
Copy the data URI
The complete Base64 data URI appears immediately, ready to copy.
Use it anywhere
Paste into CSS, HTML img src or JSON, or save it as a .txt file.
Frequently asked questions
How do I convert an image to Base64?
Drop the image onto the page. The file bytes are read and encoded as a Base64 data URI locally, shown ready to copy or download as a .txt file.
Does encoding change image quality?
No. Base64 is a lossless text representation of the exact original bytes. Decoding the data URI later returns a byte-identical image.
Why is the Base64 string bigger than my file?
Base64 represents every 3 bytes as 4 characters, adding roughly 33% plus the data URI prefix. That is inherent to the encoding, not this tool.
Is my image uploaded?
Never. The file is read with the browser FileReader API and encoded on your device — there is no upload and no account.
Binary images as text
Here is what each format is for, and when converting image files into data URIs is the right move.
What is Base64 data URIs?
The same bytes as a self-contained text string (data:image/png;base64,...) that travels inline in CSS, HTML or JSON with no second request.
When you need it
Use it for tiny icons, embedded placeholders, single-file HTML exports or avoiding extra requests in emails. For anything larger than a few kilobytes, a real file with proper caching is usually the better deal.