Quartus II Web Edition (Free) - Recommended
The Quartus II Web Edition software is an
entry-level version of the Quartus II design software that
supports Cyclone, Stratix, ACEX, Apex II, Apex 20KE, Apex 20KC,
Excalibur, MAX3000A, MAX7000B,
MAX 7000AE, MAX 7000S, FLEX 10K, FLEX 10KA, FLEX 10KE and FLEX
6000 devices. The Quartus II Web Edition software includes a
complete environment for programmable logic device (PLD) design,
including schematic- and text-based design entry, HDL synthesis,
place-and-route, verification, and programming.
to Quartus II Manual
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