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Image to Base64 Converter

Turn an image into Base64, or Base64 back into an image.

Convert
Output

JPG, PNG, WebP, GIF, SVG, AVIF, ICO or BMP, up to 10 MB

Drop another image anywhere on this page, or

Runs on your device. No upload wait.

Questions

When should I put an image in Base64?

For small images, like icons and logos under a few kilobytes, that you want inside an HTML email, a CSS file or a JSON payload with no separate request. For anything larger a normal image file is better: Base64 is about a third bigger and can’t be cached on its own.

What is a data URL?

A way to put a file’s contents straight into a link: data:image/png;base64, followed by the Base64 text. Browsers display it like an image address.

How is the image type found when decoding?

From the data URL if it says, and otherwise from the decoded bytes themselves, which begin with a signature for each format. So plain Base64 without a data URL prefix works too.

Is it free? Do I need an account?

It is free to use and there is nothing to sign up for. There are no watermarks and no daily limits.

Missing something, or not working as it should? Tell us