Image to Base64 Converter
Convert any image to a base64 data URL. Switch between 4 output formats — Data URL, HTML <img> tag, CSS background-image, or raw base64 only. Copy or download.
What powers the Image to Base64
4 output formats: Data URL, HTML <img>, CSS background, raw base64
PNG, JPG, GIF, WebP, SVG input
Live image preview
Output size estimate (base64 is ~37% larger than binary)
5MB recommended max — larger files produce unwieldy strings
Copy to clipboard or download as .txt
image never uploaded
Why the Image to Base64 is different
Browser-native
The Image to Base64 runs entirely in your browser. Input is processed locally — never uploaded, never logged, never cached anywhere outside your device.
No artificial limits
No daily quotas, no character ceilings, no "upgrade for more" walls. Every feature is the complete feature — the same on the first use as the thousandth.
Production-grade quality
Built to the same engineering bar as paid SaaS tools — accurate algorithms, audited logic, responsive design and accessibility-tested interactions.
Common use contexts
- Embedding a small icon inline in CSS to skip an HTTP request
- Pasting an image into JSON, YAML or .env config
- Embedding logos in email signatures without an external URL
- Sending a small image inline in a chat / API payload
Private and secure
Zero upload
All processing happens in your browser. Input is never transmitted, logged or cached.
Works offline
Once the page loads, the tool runs without an internet connection. No network calls happen during use.
No tracking
No accounts, no cookies for tool state. Only aggregate analytics count visits at the page level.