A completely open-source and incredibly versatile synthesizer.
A great free FM synth that acts as a plugin version of the classic Yamaha DX7.
If you are looking for , the only legitimate way to acquire it is through the official developer. The current version is much further along than v2.2 (which is very old and often incompatible with modern operating systems).
If you are on a budget and looking for high-quality synthesizers for free, consider these highly-rated legal alternatives:
