There is a SAT solver (mine, actually :) ) that's also complied to WASM, and online:
I love how fast your app is!
[1] https://www.coursera.org/learn/automated-reasoning-sat/
[2] https://github.com/msoos/cryptominisat
[3] http://www.satcompetition.org/2009/format-benchmarks2009.htm...