Next on wishlist is someone doing the same for encrypted fpga verilog blobs.
In other words, obfuscation.
There are other SPICE implementations, but Linear Technologies provides this program for free, and lots of manufacturers provide LTspice models for their components (of varying quality.)
It's the best circuit simulator, whose creators did pretty much everything right with the following exceptions:
- using the wrong key for undo
- failing to understand that open-sourcing their baby would have made it 10 times better and 10 times more popular. But when you grow up in the hardware world, these concepts are very, very hard to understand.Last year LTSpice actually switched to sane hotkeys. Hell has frozen over and our hands rejoice.
We should be careful with "best" without more qualifiers. It's a swiss army knife, but not very sharp. It's no replacement for an RF suite.
QSPICE (made by the author of LTspice) claims to be 10x faster.
Also, LTspice cannot do symbolic transformations, so that places an upper limit to its utility.