FL Studio's official trial has no time limit and includes all features and plugins. The only restriction is that you cannot reopen saved projects until you purchase a license (though you can export your tracks to MP3/WAV).
The Producer Edition includes more than eighty instrument and effect plugins covering automation, sample playback and manipulation, synthesis, compression, delay, equalization filtering, flanging, phasing, chorus, reverb, distortion, and bit‑crushing. It supports multi‑track audio recording, MIDI input from keyboards and controllers, VST hosting (both 32‑bit and 64‑bit), and can function as a VST plugin within other DAWs. FL Studio's official trial has no time limit