Wave Lab runs entirely in your browser using the Web Audio API — no download, no plugin, no account needed. Generate a tone from scratch using sine, square, sawtooth or triangle waves, or load your own audio file and shape it with pitch, volume, filter and echo controls. Export the result as a WAV file when you're done.
It's a good way to hear the difference between waveforms before you open a synth plugin in REAPER — and useful for quick sound design experiments without launching your DAW.
Generate a tone from scratch, or load your own audio file, then shape it with three core wave parameters — pitch, volume and filter cutoff — right in the browser.
Want to shape sound like this with a full synth, not just three sliders?
Wave Lab is a great way to get a feel for pitch, volume and filtering — but a proper synth plugin gives you oscillators, envelopes and modulation on top. Here are the free and paid synths I actually use in REAPER:
→ Best free synth VST plugins for REAPER
→ Browse synths and effects at Plugin Boutique
Affiliate disclosure: Some links on this page may be affiliate links. If you purchase through them, I may earn a small commission at no extra cost to you.
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18 shortcuts, settings, and a free plugin starter pack — one printable page.
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