A TIFF can hold pages, 16-bit colour and print inks. A JPG holds one picture.
Most browsers can't open TIFF at all, so this page reads it with its own decoder: every page in the file, strips and tiles, LZW, Deflate and PackBits, 1 to 16 bits, RGB, greyscale, palette and CMYK. Each page you pick becomes a JPG that keeps the TIFF's print resolution.
Scanners and RAW editors save TIFF at 16 bits per channel so you can brighten shadows later without banding. JPG stores 8. That's fine for the finished picture, but do your edits on the TIFF first. Measured on the 16-bit page of the test file, or on yours if it has one.
A CMYK TIFF records how much cyan, magenta, yellow and black ink each dot gets. To make a JPG for screens the page turns ink into light. Without the printer's ICC profile it uses the plain formula R = (1 − C)(1 − K), and the same for green and blue. That's close, but bright print colours look slightly duller. Open poster-cmyk.tif to see the four ink channels.
Pixels have no physical size on their own. A TIFF stores a resolution (XResolution, YResolution, ResolutionUnit) that tells layout and print software how big to print it. Browser-made JPGs say 1 × 1 with no unit, so the page writes the TIFF's value into the JPG's JFIF header and reads it back to check.
Yes, TIFF to JPG conversion is completely free with no signup, no watermark, and no usage limit. Convert as many files as you need.
No. The TIFF to JPG converter runs in your browser when your file is supported there, so the file stays on your device for that workflow, reducing server exposure for that workflow. Look at the processing mode before putting anything confidential through it.
Most TIFF to JPG conversions finish in under a minute. A large file takes longer in proportion, though the work happens on your machine, so nothing waits on a sign-up.
Depends which formats. Lossless in, lossless out, and the file you get back is identical. Convert to something compressed and you trade a little quality for a smaller file, which is usually the trade you wanted.
Yes. The TIFF to JPG converter works on phones, tablets, and desktops in any modern browser including Chrome, Safari, Firefox, and Edge.