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Image to Base64

Turn images into Base64 data URIs for inlining in HTML and CSS.

Turn images into Base64 data URIs for inlining in HTML and CSS.

Quick start: Upload a JPG, PNG, or WebP image by dropping it onto the upload area or clicking to browse. → The tool encodes the image into a Base64 data URI string automatically. → Preview the generated string and its length to confirm it fits your use case.

How to use Image to Base64

  1. 1

    Upload a JPG, PNG, or WebP image by dropping it onto the upload area or clicking to browse.

  2. 2

    The tool encodes the image into a Base64 data URI string automatically.

  3. 3

    Preview the generated string and its length to confirm it fits your use case.

  4. 4

    Click 'Copy' to place the complete data URI on your clipboard, ready to paste into HTML or CSS.

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Why use Image to Base64?

  • Generates a complete data URI with the correct MIME type prefix for direct embedding.
  • Works with JPG, PNG, WebP, and GIF images.
  • One-click copy puts the full string on your clipboard.
  • Runs entirely in your browser — your images are never uploaded anywhere.

Common use cases

  • Embed small icons directly in HTML email signatures where external image links may be blocked.
  • Inline tiny UI assets in CSS background-image properties to eliminate HTTP requests.
  • Convert images to Base64 for embedding in JSON payloads or API requests.
  • Create self-contained HTML documents with all images embedded inline.

About Image to Base64

Base64 data URIs let you embed images directly inside HTML, CSS, or JSON without serving them as separate files. This is especially useful for email signatures where external images are often blocked, for inlining tiny UI icons to eliminate HTTP requests, and for creating self-contained HTML documents. Xevon Tools' Image to Base64 converter handles JPG, PNG, WebP, and GIF inputs and produces a complete data URI string with the correct MIME type prefix. One click copies the full string to your clipboard, ready to paste into an img src attribute or CSS background-image property. The tool also shows the encoded string length so you can judge whether the image is small enough for inline use. As a rule of thumb, images under 200KB of source size work well as Base64; larger images should be served separately. Everything runs in your browser with no uploads required.

Frequently asked questions

For practical use, keep Base64-encoded images under 200KB of source size. Larger images produce very long strings that bloat your HTML or CSS and are better served as separate files.
Yes. Base64 encoding increases the data size by approximately 33% compared to the binary original. The trade-off is eliminating an HTTP request, which can be worth it for very small images.
The output includes the full prefix, such as data:image/png;base64,... — you can paste it directly into an HTML img src attribute or CSS url() without modification.
Yes. Use the companion Base64 to Image tool to paste a data URI and download the resulting image file.

Your files never leave your device

Every tool on Xevon Tools runs 100% in your browser. No uploads, no servers, no tracking. Free forever.

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Embed Image to Base64 on your site

Add this tool to your own website, blog, or internal tool page with one line of code. Free to use, no attribution required (but appreciated).

<iframe src="https://www.xevontools.com/embed/image-to-base64" width="100%" height="640" style="border:1px solid #e2e8f0;border-radius:12px;" title="Image to Base64 — Xevon Tools"></iframe>
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