Base64 Image Converter & Data URL Encoder

UPLOAD IMAGE OR PASTE BASE64

Click or Drag & Drop Image File Supports PNG, JPEG, WebP, SVG (Client-side)

Or Paste Base64 Data URL

BASE64 DATA URL OUTPUT & PREVIEW

Base64 Length: 0 chars

No valid Base64 image loaded

Base64 Image Encoding & Data URL Specification

Base64 Data URLs represent binary image files as ASCII text strings (`data:image/png;base64,...`). Inlining small icons into CSS reduces network request round-trips (RTT).

HTML & CSS Usage Snippets

HTML Tag: <img src="data:image/png;base64,..." alt="Icon" />
CSS Background: background-image: url("data:image/png;base64,...");

Related Developer Tools

Encode text with the Base64 Encoder/Decoder, convert WebP to PNG with the WebP to PNG Converter, or convert SVG to PNG with the SVG to PNG Converter.

Frequently Asked Questions

Common questions about this tool.

How does the Base64 Image Converter work? ▼

Upload an image file or paste an existing Base64 Data URL. The converter encodes image binaries into `data:image/png;base64,...` text strings locally in your browser.

Why encode images into Base64 Data URLs? ▼

Base64 Data URLs allow embedding small icons, favicons, and background images directly inside CSS or HTML files without extra HTTP requests.

What image formats are supported? ▼

Supports PNG, JPEG, WebP, GIF, SVG, and ICO image formats.

Is my uploaded image sent to external servers? ▼

100% private. All Base64 encoding and image decoding execute locally inside your web browser.

How much overhead does Base64 image encoding add? ▼

Base64 encoding increases raw binary image file size by approximately 33% (4 characters represent 3 bytes).