How to Convert Image to Base64

Convert images (PNG, JPG, SVG, GIF, WebP) to Base64 data URIs instantly. Embed images directly in HTML, CSS, or JSON without separate file requests.

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Step-by-Step Guide

1

Upload your image

Drag and drop an image file or click to browse. Supports PNG, JPG, JPEG, GIF, SVG, WebP, BMP, and ICO formats. There is no file size limit — processing happens entirely in your browser.

2

Get the Base64 output

The tool instantly converts your image to a Base64-encoded string. You get both the raw Base64 data and a ready-to-use data URI (data:image/png;base64,...) for direct embedding.

3

Choose your format

Copy as a data URI for HTML img tags, CSS background-image, or JSON payloads. Or copy just the raw Base64 string if you need to store it in a database or send via API.

4

Preview and verify

See a live preview of the decoded image to verify the conversion is correct. Check the output size — Base64 increases file size by ~33%, so use it wisely for small images and icons.

Try It Now — Free

No signup, no download. Runs entirely in your browser.

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Frequently Asked Questions

When should I use Base64 images?
Use Base64 for small images (icons, logos under 10KB) to reduce HTTP requests. For larger images, regular files with proper caching are more efficient since Base64 adds 33% to the file size.
Can I use Base64 images in CSS?
Yes. Use them in background-image: url(data:image/png;base64,...). This eliminates a network request but increases your CSS file size, so best for small, critical images.
Is my image data safe?
Yes. The conversion runs entirely in your browser using the FileReader API. Your image is never uploaded to any server. Close the tab and the data is gone.
Related Reference

JavaScript Cheat Sheet

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