Image to Base64 Converter – Free Online Tool
Convert any image to Base64 string or decode Base64 back to image. 100% browser-based.
Drop your image here or click to browse
PNG, JPG, WEBP, GIF supported
About This Image to Base64 Converter
Convert any image to a Base64-encoded string directly in your browser. Base64 encoding allows you to embed images directly into HTML, CSS, or JavaScript source files without needing a separate image URL.
This tool supports both directions: upload an image to get its Base64 string, or paste an existing Base64 string to preview and download the resulting image. This is extremely useful for web developers embedding small icons or sprites, for data URIs in stylesheets, or for passing images through JSON APIs.
All encoding and decoding uses the browser's built-in FileReader API and atob/btoa functions. Your files never leave your device, ensuring complete privacy.
Supported input formats include JPG, PNG, GIF, WEBP, SVG, and any other format your browser can read.
Common Use Cases
- Embedding small images in CSS as data URIs
- Passing images through JSON APIs
- Generating inline HTML images without external files
- Email templates with embedded images