Image to Base64 Converter
Turn images into base64 data URLs in your browser. Copy as data URL, CSS background, HTML img tag, or JSON.
Drop images here
Encode JPG, PNG, WebP, or AVIF as base64 data URLs locally. No uploads.
Use the file picker or drag image files onto this area.
Output format
Choose how the base64 is wrapped. The same source bytes work in every format.
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Data URL works inline in HTML. CSS and HTML wrap it for templates. JSON for tooling.
Image to base64 notes
- Private
- Encoding runs in the browser. Images never leave this device.
- Formats
- Raw data URL, CSS background, HTML img tag, or JSON for tooling and templates.
- Tradeoff
- Base64 is ~33% larger than binary. Prefer it for small icons and inline assets.
- Use cases
- Email templates, single-file HTML, favicons in CSS, demo assets, and embeds.