🖼️ Image Encoding

Image to Base64 Converter

Turn any image file into a Base64-encoded string you can embed directly in HTML, CSS, or JSON — no file hosting needed.

✓ All Image Formats ✓ Embed in HTML / CSS ✓ 100% Browser-Based ✓ Free, No Sign-up
📄 HTML Embed Use as <img src="data:image/png;base64,…"> inline
🎨 CSS Background Set as background-image URL without server files
🔌 API Payload Send images as JSON fields in REST / GraphQL APIs
🖼️
Drop your image here, or click to browse
PNG, JPG, GIF, WEBP, SVG — processed entirely in your browser

Upload an image and click Encode. The base64 string will appear below for copy-pasting.

How to Convert an Image to Base64

  • Click the upload area or drag and drop an image file onto it.
  • Click Encode to Base64 — it runs instantly in your browser.
  • Copy the resulting string from the output area and paste it into your code.
  • Prefix it with data:image/png;base64, (or the correct MIME type) when using in HTML/CSS.

Frequently Asked Questions

What is Base64 encoding?

Base64 is a way to represent binary data (like an image) as a plain text string of ASCII characters. This lets you embed images directly in HTML, CSS, or JSON without separate file references.

Does Base64 increase file size?

Yes — Base64 adds about 33% overhead compared to the original binary size. It's best for small images (icons, logos, thumbnails). For large photos, use regular file hosting instead.

Is my image uploaded to a server?

No. Everything happens locally in your browser using the FileReader API. Your image never leaves your device.

Detailed Guide

Step-by-step instructions, examples, and use cases for Base64 image encoding.

Read the Image to Base64 Guide

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