About Image to Base64
Convert an image into a Base64 data URI you can embed directly in HTML or CSS — no separate file request needed. Great for small icons and inline assets. Encoding happens in your browser.
How to Use
- Choose an image file.
- The tool encodes it as a Base64 data URI.
- Copy the data URI, or the ready-made HTML, CSS, or Markdown snippet.
- Paste it wherever you need the inline image.
Why Use This Tool?
- Accurate — built on precise, well-tested mathematical formulas.
- Instant — all calculations happen client-side for zero latency.
- Private — no data is sent to any server; your information stays on your device.
- Free — no sign-up, no limits, no hidden costs.
Frequently Asked Questions
When should I use a Base64 data URI for an image?
For small images like icons or logos, embedding them as Base64 saves an extra HTTP request. For large images it is counter-productive, since Base64 is about 33% larger than the file and cannot be cached separately.
Does converting to Base64 reduce image quality?
No. Base64 is a lossless text encoding of the exact file bytes, so the image is identical — only its representation changes.
Is my image uploaded to a server?
No. The image is read and encoded entirely in your browser, so it never leaves your device.