Image
Image to Base64 Converter
- Browser-based
- Basic conversion
- No signup
- Stays on your device
- Your file is processed in your browser and is not uploaded to our servers.
Upload a JPG, PNG, WebP, GIF, or SVG and convert it to Base64 and a data URL in your browser. Copy either output for use in CSS, HTML, or APIs. Files are not uploaded to a server.
100% Client-Side
Your data never leaves your computer.
How to use this tool
1. Choose an image or drag it onto the upload area. 2. Review the generated Base64 string or data URL in the output panel. 3. Choose whether to include the data URL prefix if that option is shown. 4. Click Copy to clipboard. 5. Paste into HTML, CSS, or API payloads as needed. Processing runs in your browser.
Worked example
Example: upload a small PNG icon and copy the data:image/png;base64,... string for an inline email or test fixture.
How it works
Upload an image and the tool converts its bytes to Base64 and a data URL in your browser. Supported formats are JPG, PNG, WebP, GIF, and SVG. Files are not uploaded to a server.
Limitations
Results are based on the inputs you provide and may not cover every edge case. This tool is for general use and is not professional advice.
Privacy and file handling
Your data is processed in your browser and is not uploaded to our server.
Frequently asked questions
Which image formats are supported?
JPG, PNG, WebP, GIF, and SVG. The tool encodes the file bytes in your browser.
What is the difference between Base64 and a data URL?
Base64 is the encoded payload only. A data URL includes the MIME type prefix, such as data:image/png;base64,…
Is my image uploaded?
No. Encoding runs locally in your browser.
Related tools
Related pages
- Browse all free online tools on Utilnivo
- Explore more image tools on Utilnivo
- Base64 to Image Decoder — Decode Base64 or a data URL into an image preview and file.
- Base64 Encoder & Decoder — Encode and decode text with Base64.
- Image Format Converter — Convert images between JPG, PNG, and WebP formats.
- Image Compressor — Compress images to reduce file size.
- Resize Image — Resize images to custom dimensions.
- Remove Background — Remove image backgrounds on-device (first run downloads a model from a CDN).
Page last reviewed:
