Is the png to base64 converter private?
Yes. PNG is lossless and supports alpha transparency; Base64 encoding preserves the exact original PNG bytes. All processing happens locally in your browser — nothing is uploaded to our servers.
PNG to Base64 Converter
Convert PNG images to Base64, Data URL, HTML, CSS, JSON, or Markdown with transparent pixels preserved.
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 PNG images
PNG is lossless and supports alpha transparency; Base64 encoding preserves the exact original PNG bytes.
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
Does PNG transparency survive Base64 encoding?
Yes. The tool encodes the original PNG bytes without recompression, so alpha transparency and color depth stay intact.
When should I embed a PNG as Base64 instead of linking the file?
Use Base64 for small icons, email HTML, offline documents, or APIs that only accept text. Prefer file URLs for large, cacheable assets.
When should I use Base64 for PNG images?
Use it when a text-only channel or API must carry binary data, or when a small PNG images asset needs to live inside a self-contained document. Prefer separate files for large, cacheable public assets.