Image to Base64 Converter
Convert PNG, JPG, SVG, and WebP images into Base64 Data URI strings. Embed images directly into HTML and CSS with zero external network requests and 100% privacy.
Drag and drop your image here, or click to select
Max size 4MB
How Image to Base64 Converter Works & Technical Principles
Encode binary image files into inline Data URI strings directly in your browser. Eliminate external HTTP asset requests with complete local execution.
Technical Overview: Binary File Streams to Inline Data URI Payloads
A Data URI encapsulates an image's MIME type and base64-encoded binary payload into a single inline string (data:image/png;base64,...). Browsers parse this string directly in memory, embedding graphics into HTML or CSS without requiring separate HTTP network roundtrips.
Input & Configuration
Drag and drop or select an image file (PNG, JPG, SVG, GIF, WebP) from your local computer.
Client-Side Processing
The FileReader API reads the file's binary stream as an ArrayBuffer and converts bytes to an RFC 4648 Base64 character sequence.
Instant Output & Export
Copy the raw Base64 string, CSS background-image snippet, or HTML <img> tag with a single click.
Key Capabilities & Features
Ready-to-Use Code Presets
Instantly exports raw Base64 strings, HTML <img> elements, and CSS url('data:...') background rules.
Broad Format Support
Seamlessly converts PNG, JPEG, SVG, WebP, GIF, and ICO image formats with correct MIME header detection.
100% In-Browser Privacy Guarantee
Images are processed strictly within your browser sandbox and never uploaded to remote storage.
Real-Time Image Preview
Inspect the rendered image alongside total character count and estimated payload weight.
Standard IETF specification for inlining small data items within URLs
The Base16, Base32, and Base64 Data Encodings specification