# TIFF to PNG

Convert TIFF or TIF to PNG in your browser with every pixel kept. Free, no signup, no watermark, and the scan is never uploaded.

Canonical page: https://filetity.com/tiff-to-png

## Capabilities

- Free: Yes, with no watermark and no page limit.
- Account required: No. There is no account system.
- Processed on device: Yes. The file is read by your browser and never uploaded. There is no server to send it to.
- Formats: TIFF and TIF in. PNG out, one file per image, or a ZIP when you convert several.
- Limits: Scans work, including the fax formats. CCITT Group 3 and Group 4, which is what fax machines and most document scanners write, are decoded here, in both bit orders and both polarities. What is still refused is refused by name rather than handed back damaged: PackBits, JPEG inside a TIFF, CMYK colour, floating point samples, separate colour planes, and tiled colour images. A multi-page TIFF is refused too, and says how many pages it has, because one image in means one file out here. Worth knowing: the CCITT decoder has been tested against files written by libtiff and by Pillow, not against output from a physical fax machine, so an unusually old file may still be turned away.
- Mobile: Yes, on any modern mobile browser. Large files are limited by the memory the phone gives the browser.
- Offline: Yes. Nothing is downloaded to make this work, so it keeps working with no network connection once the page has loaded.

## Questions

### Is anything lost going from TIFF to PNG?

No. Both are lossless, so every pixel survives and the image can be edited again without degrading. That is the reason to pick this over TIFF to JPG for a scan, a diagram or artwork.

### Does transparency survive?

Yes. A TIFF with an alpha channel comes out as a PNG with the same alpha, because PNG has a real one. The transparent areas are not filled in.

### Why is the PNG sometimes larger than the TIFF?

Because a lot of TIFFs are already compressed, usually with LZW or Deflate, and for photographs PNG is not always better at it. The file size may go either way. Nothing is lost either way, which is the thing PNG guarantees and file size does not.

### What about 16 bit TIFFs?

A 16 bit greyscale TIFF is read and converted, using the high byte of each sample, which is what libtiff does. The output PNG is 8 bit per channel, so a scientific or medical image that genuinely needs 16 bit depth should stay a TIFF.

## Related tools

- [TIFF to JPG](https://filetity.com/tiff-to-jpg): Turn a TIFF or TIF scan into a JPG anything can open.
- [Image Converter](https://filetity.com/image-converter): Convert images to JPG, PNG, WebP, GIF or BMP, in a batch, with the output your choice.
- [PNG to JPG](https://filetity.com/png-to-jpg): Turn PNG images into JPG files that are far smaller to send and store.