I guess the modern equivalent of that would be https://repology.org/

Although the focus is on the version aspect, so descriptions are a bit hidden and I'm not sure they're searchable.

There seems to be a bug; the “Description” field seems to have joined lines together without spaces, leading to such things as “It is conformantto” in the description of Bigloo.

There was also Scientific Applications on Linux http://www.sai.msu.su/sal/