Image to Base64 — Data-URI Encoder
Embed small images inline: paste a file, copy the data-URI for CSS background or , size-checked.
Quick answer: Free image→Base64: get data-URI strings for HTML/CSS/JSON with size comparison — files never uploaded.
–original size
–base64 size (+%)
How to use
- Choose an image.
- Copy the CSS or HTML snippet.
- Check the size delta below.
About this tool
Small icons and logos travel best inline. This encoder produces the data-URI (with correct MIME), shows the size-inflation honestly, and says when NOT to use it (big images).
FAQ
Uploaded?
Never — FileReader-local.
When to use Base64?
Small icons (<10KB), email HTML, single-file demos — big images should stay files.
Why is Base64 bigger?
~33% overhead — the tool shows exact before/after.
CSS syntax?
url(data:image/png;base64,…) provided ready-to-paste.
SVG?
Yes — text-safe MIME handled.
Decode back?
Paste the data-URI into any browser address bar to view.
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