Image to Base64
FreeConvert images into Base64 strings, HTML tags, and CSS background URIs
About Image to Base64
Image to Base64 Converter converts image files into Data URI strings, HTML `<img>` src attributes, and CSS background URIs.
Embed icons and small logo graphics directly inside HTML or CSS files to eliminate extra HTTP requests and speed up web page loading.
Common Use Cases
- Embedding small logo icons directly into single-file HTML templates or email newsletters
- Inlining CSS background images to eliminate HTTP request latency
- Exporting image assets into JSON database payloads
How to Use Image to Base64
- Upload your target image file (PNG, JPG, SVG, WebP).
- Select output format tab (Data URI, HTML <img>, CSS background, or raw Base64).
- Click 'Copy' to copy the formatted string.
Real-World Examples
icon.png (16x16 px)<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQ..." alt="Icon" />Important Notes & Limitations
- Base64 strings are ~33% larger than binary files; best suited for small images (< 100 KB)
Privacy & Data Security
Image to Base64 processes all operations 100% locally in your web browser memory. Your files, text snippets, and generated outputs are never stored, logged, or uploaded to any remote server.
Frequently Asked Questions
Copy formatted strings as raw Base64, Data URI (`data:image/png;base64,...`), HTML `<img>` tag, or CSS `background-image` style.
Yes, Base64 encoding increases string data size by roughly 33% compared to raw binary image files.
Base64 is ideal for small icons, avatars, and inline CSS assets to eliminate separate server requests.
Yes, paste a valid Base64 Data URI to decode and download it as a standard image file.