Krisp, operating since 2017, solves a different moment in the audio pipeline than most tools in this category: rather than cleaning up a recording afterward, it removes background noise and echo in real time, during a live Zoom, Teams, or Google Meet call, so the other participants never hear the problem in the first place.
That live focus extends to canceling other participants' background noise too, not only the user's own microphone, and to isolating a single voice from crosstalk in a noisy shared space, useful for open offices or calls taken from public places. It runs as a background app rather than a plugin inside any specific video conferencing tool, working across whichever app is actively in a call.
A free tier covers a limited number of weekly minutes, and paid plans start around $8 a month for unlimited use. For anyone whose problem is noisy calls happening live rather than recordings needing cleanup after the fact, Krisp addresses a moment none of the post-production tools on this list touch at all.
