Is the image to base64 converter private?
Yes. The converter detects the image MIME type and creates ready-to-use output without sending the file to a server. All processing happens locally in your browser — nothing is uploaded to our servers.
Image to Base64 Converter
Convert images to Base64, Data URLs, HTML, CSS, JSON, Markdown, or favicon code locally in your browser.
Runs locally in your browser
How to use it
- Paste your input or choose a file from this device.
- Run the conversion and review the detected type or preview.
- Copy the result or download it for your project.
Built for images
The converter detects the image MIME type and creates ready-to-use output without sending the file to a server.
No registration, watermark, queue, or server upload is required.
Use Base64 wisely
Base64 is ideal for text-only APIs, small embedded assets, test fixtures, and portable documents. It increases payload size, so external files are usually better for large public assets.
Frequently asked questions
What output formats can I generate from an image?
Besides plain Base64, you can copy a Data URL, HTML img tag, CSS background-image rule, JSON object, Markdown image syntax, or an HTML favicon link — all generated locally.
Is there a file size limit?
Each file can be up to 100 MB. Very large images may also be limited by available browser memory on your device.
When should I use Base64 for images?
Use it when a text-only channel or API must carry binary data, or when a small images asset needs to live inside a self-contained document. Prefer separate files for large, cacheable public assets.