Images
Image to Base64 Converter
Convert images (PNG, JPG, GIF) to Base64 encoded strings for embedding in HTML or CSS.
Click to upload or drag image
Supports PNG, JPG, GIF, WebP, SVG
Image preview will appear here
About Image to Base64 Converter
The Image to Base64 Converter transforms your image files into Base64 strings (Data URIs). This allows you to embed images directly into your HTML, CSS, or JSON code, eliminating the need for external HTTP requests.
Optimize your critical path performance. Embedding small assets like logos, icons, or background patterns as data URIs can reduce round-trip times (RTT) for your website. This tool provides ready-to-paste snippets for HTML Image tags and CSS Background properties.
Drag and drop your image file. The tool instantly generates the Base64 string. You can preview the image and copy the code snippet that fits your use case.
Under the Hood
Conversions are performed entirely in the browser using the `FileReader` API (`readAsDataURL`). The file is read into memory as a Base64-encoded string. No data is uploaded to any server. The tool approximates the output size (Base64 is roughly 33% larger than the binary original) to help you decide if embedding is the right performance strategy.