Convert TIFF images to lossless PNG locally - with transparency, no upload, right in your browser.
Running locally on your device ...
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Your files never left your device
No. Everything runs in your browser - your file never leaves your device. How this is verifiable
TIFF is a lossless format from print, scanning and photography. Browsers and many modern programs do not open it directly. PNG is also lossless, supports transparency and is opened everywhere - the right choice when full quality must be preserved.
The TIFF is decoded locally and exported as PNG; any alpha channel is preserved. Multi-page TIFFs are converted page by page - you get one PNG per page (several as a ZIP). Nothing is uploaded.
The decisive advantage of this direction is that both formats are lossless: the full quality of your scan or professional photo is not lost; you merely swap the poorly supported TIFF container for a PNG that every browser and image program shows instantly. That is the right choice when you want to retouch, cut out or place the image in a layout afterwards. For a multi-page TIFF, as faxes and scanned contracts often are, you get each single page as its own PNG - conveniently bundled in a ZIP file so the order stays traceable.
| Input formats | TIF, TIFF |
|---|---|
| Output format | PNG |
| Batch processing | Yes |
| Processing | Locally in your browser (JavaScript) |
| File upload | None |
Limitations: PNG is lossless - no detail is lost, but for photos the file stays larger than a JPG. Multi-page TIFFs yield several PNGs. Very large TIFFs can use a lot of memory on mobile devices.
No. The conversion runs entirely in the browser - even in airplane mode.
Each page becomes its own PNG; with several pages you get a ZIP download.
No, PNG is lossless. No detail is lost.
Yes, an alpha channel in the TIFF is fully carried into the PNG.