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Image to Base64 Converter

Convert PNG, JPG, GIF, WebP, and SVG images to Base64 encoding with data URI, CSS, and HTML formats

Image to Base64 Converter

Drop an image here

or click to browse your files

Supported formats: PNG, JPG, GIF, WebP, SVG (max 10 MB)

Encoded sample-check.svg, 352 Bytes

Preview

sample-check.svg

File information

File namesample-check.svg
Dimensions64 × 64px
Formatimage/svg+xml
Original size263 Bytes
Encoded size352 Bytes
Size increase+34%

Output formats

Data URI (full)
data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI2NCIgaGVpZ2h0PSI2NCIgdmlld0JveD0iMCAwIDY0IDY0Ij48cmVjdCB3aWR0aD0iNjQiIGhlaWdodD0iNjQiIHJ4PSIxNCIgZmlsbD0iIzEwYjk4MSIvPjxwYXRoIGQ9Ik0xOSAzM2w5IDkgMTctMTkiIGZpbGw9Im5vbmUiIHN0cm9rZT0iI2ZmZmZmZiIgc3Ryb2tlLXdpZHRoPSI2IiBzdHJva2UtbGluZWNhcD0icm91bmQiIHN0cm9rZS1saW5lam9pbj0icm91bmQiLz48L3N2Zz4=
Base64 only (without data URI prefix)
PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI2NCIgaGVpZ2h0PSI2NCIgdmlld0JveD0iMCAwIDY0IDY0Ij48cmVjdCB3aWR0aD0iNjQiIGhlaWdodD0iNjQiIHJ4PSIxNCIgZmlsbD0iIzEwYjk4MSIvPjxwYXRoIGQ9Ik0xOSAzM2w5IDkgMTctMTkiIGZpbGw9Im5vbmUiIHN0cm9rZT0iI2ZmZmZmZiIgc3Ryb2tlLXdpZHRoPSI2IiBzdHJva2UtbGluZWNhcD0icm91bmQiIHN0cm9rZS1saW5lam9pbj0icm91bmQiLz48L3N2Zz4=
CSS background
background-image: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI2NCIgaGVpZ2h0PSI2NCIgdmlld0JveD0iMCAwIDY0IDY0Ij48cmVjdCB3aWR0aD0iNjQiIGhlaWdodD0iNjQiIHJ4PSIxNCIgZmlsbD0iIzEwYjk4MSIvPjxwYXRoIGQ9Ik0xOSAzM2w5IDkgMTctMTkiIGZpbGw9Im5vbmUiIHN0cm9rZT0iI2ZmZmZmZiIgc3Ryb2tlLXdpZHRoPSI2IiBzdHJva2UtbGluZWNhcD0icm91bmQiIHN0cm9rZS1saW5lam9pbj0icm91bmQiLz48L3N2Zz4=');
HTML <img> tag
<img src="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI2NCIgaGVpZ2h0PSI2NCIgdmlld0JveD0iMCAwIDY0IDY0Ij48cmVjdCB3aWR0aD0iNjQiIGhlaWdodD0iNjQiIHJ4PSIxNCIgZmlsbD0iIzEwYjk4MSIvPjxwYXRoIGQ9Ik0xOSAzM2w5IDkgMTctMTkiIGZpbGw9Im5vbmUiIHN0cm9rZT0iI2ZmZmZmZiIgc3Ryb2tlLXdpZHRoPSI2IiBzdHJva2UtbGluZWNhcD0icm91bmQiIHN0cm9rZS1saW5lam9pbj0icm91bmQiLz48L3N2Zz4=" alt="sample-check.svg" />
JSON value
{ "image": "data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI2NCIgaGVpZ2h0PSI2NCIgdmlld0JveD0iMCAwIDY0IDY0Ij48cmVjdCB3aWR0aD0iNjQiIGhlaWdodD0iNjQiIHJ4PSIxNCIgZmlsbD0iIzEwYjk4MSIvPjxwYXRoIGQ9Ik0xOSAzM2w5IDkgMTctMTkiIGZpbGw9Im5vbmUiIHN0cm9rZT0iI2ZmZmZmZiIgc3Ryb2tlLXdpZHRoPSI2IiBzdHJva2UtbGluZWNhcD0icm91bmQiIHN0cm9rZS1saW5lam9pbj0icm91bmQiLz48L3N2Zz4=" }

Updated . Provided as is. Check the output before you rely on it in production.

How to use Image to Base64 Converter

  1. 1

    Choose an image

    Click Browse Files or drag and drop a PNG, JPG, GIF, WebP or SVG. The preview and file details appear immediately.

  2. 2

    Pick the output you need

    The tool shows the full data URI, Base64 only, a CSS background rule, an HTML <img> tag and a JSON value at once.

  3. 3

    Check the size cost

    Compare original and encoded size. Base64 adds about a third, so it suits small icons more than photos.

  4. 4

    Copy or download

    Copy any format, or download the output as a .txt file.

Questions and answers

What is Image to Base64 Converter?
Base64 turns an image's binary bytes into ASCII text, so it can be embedded inline as a data URI instead of loaded as a separate file. This tool encodes PNG, JPG, GIF, WebP or SVG files up to 10 MB in your browser and outputs a data URI, a CSS background rule and an HTML img tag, with the size increase.
Does Image to Base64 Converter store or send my data?
No. All processing happens entirely in your browser. Your images stay on your device — nothing is sent to any server.
Why would I convert an image to Base64?
Base64-encoded images can be embedded directly in HTML, CSS, or JSON without separate file requests. This is useful for small icons, email templates, and reducing HTTP requests, though it increases file size by about 33%.
For AI agents: how to call this tool

Machine-readable contract, endpoints and examples. Humans can ignore this section.

Best Path For Builders

Browser workflow

Runs instantly in the browser with private local processing and copy/export-ready output.

Browser Workflow

This tool is optimized for instant in-browser execution with local data handling. Run it here and copy/export the output directly.

/image-to-base64/

For automation planning, fetch the canonical contract at /api/tool/image-to-base64.json.