Image to Base64
Convert any image to a Base64 data URI for CSS, HTML or JSON — instantly and fully offline.
Processed on your device — nothing is uploaded
🔒 Encoding happens locally in your browser — works even offline.
About the Image to Base64
Embed images directly in your code as data URIs: paste them into CSS background-image, HTML img sources or JSON payloads to eliminate extra HTTP requests — ideal for small icons, logos and inline assets.
The file is read locally by your browser and encoded instantly. Nothing is uploaded, and the tool works even with your network disconnected.
How to use the Image to Base64
- 1Drop your image into the box.
- 2Copy the generated data URI with one click.
- 3Paste it into your CSS, HTML or JSON.
Frequently asked questions
Where can I use the output?
Anywhere a URL goes: CSS background-image: url(data:image/png;base64,…), <img src="…">, fetch payloads and more.
How much bigger does the file get?
Base64 encoding adds roughly 33% overhead. It is best for small images; large photos are usually better served as separate files.
Is my image uploaded?
No. The encoding happens locally — the tool even works offline.
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