Recently, I did lots of freelance work for my clients. For one of them I open sourced a table library, because all the available table libraries didn’t meet my client’s requirements.
I am proud about its customizability (see Themes), its tree table feature (see Tree), and its server-side capabilities as first-class citizen (see Server). But look for yourself in the documentation
If you like it, let me know by replying to this email :-)