Convert tiff to heif
A browser can't do this one — here is what it can do.
Desktop app only
Nothing that runs in a tab can write heif from tiff. This pair is waiting on the desktop build, which hands the job to the real command-line tools.
Browse what does workAbout TIFF
Tagged Image File Format
A container from Aldus, first released in 1986 and now owned by Adobe, that can hold multiple pages, high bit depths and lossless compression such as LZW or ZIP. Scanners, print shops and archives use it widely. Use it for print work and archived scans where no quality can be lost.
About HEIF
High Efficiency Image File Format
An MPEG container standard (ISO/IEC 23008-12) from 2015 for single images and image sequences. It can hold HEVC, AV1 or other codecs, along with depth maps and bursts. Convert HEIF to JPG or PNG for apps and sites that cannot read it.