Is there genuinely free noise cancelling software, or is it all trials?

Genuinely free exists in two shapes: capped-but-permanent tiers (Krisp's 60 minutes a day, Adobe Enhance's hour a day) and actually-unlimited free tools with a non-money catch (NVIDIA Broadcast needs an RTX GPU, SteelSeries Sonar is Windows-only, Audacity isn't live). We audit both shapes and name the catch.

What's the best free option for live calls?

If you own an RTX 2060 or better on Windows: NVIDIA Broadcast, no meter at all. Everyone else: Krisp's free plan — 60 minutes a day of real two-way noise cancellation on Windows or Mac. The calls roundup ranks all five options.

And for cleaning a recording I already have?

Adobe Podcast Enhance's free tier — up to an hour a day, files to 30 minutes. It's the biggest no-cost cleanup allowance on our shelf, and the online-cleanup guide shows the caps before you upload.

Free noise cancelling software that stays free

Noisy room, $0 budget — fixable. ZeroHum audits the free tiers of noise cancellation software the way you’d check a till receipt: what you pay (nothing), what you actually hand over (a cap, an email, a GPU requirement), and exactly where the paywall lands.

by the ZeroHum audit deskpublished July 31, 2026✓ caps checked July 30, 20266 free tools on the shelf

The no-trials pledgeEvery tool here has a free tier you can live in — not a trial wearing a free costume. Time-boxed trials get named as trials, samples as samples, and anything that quietly expires gets the orange chip.

The shelf: six audited freebies

Krisp free plan

60 min/day · forever

Real two-way cancellation for any call app, Windows and Mac. The meter is the catch — one honest meeting a day.

NVIDIA Broadcast

unlimited · RTX-gated

No meter, no tiers, superb live cleanup — if you already own the right graphics card. The best coupon in the category.

Adobe Podcast Enhance

1 h/day · forever

Upload a rough recording, download a startlingly clean one. The daily hour is the biggest free cleanup allowance going.

Cleanvoice

30 min · one-time sample

Noise, filler words and dead air trimmed in one pass. The free 30 minutes is a sample, not a tier — orange chip, honestly labelled.

Audacity

unlimited · open source

The forever-free fixer. Ten minutes of learning buys unlimited offline noise reduction for the rest of your life.

SteelSeries Sonar

unlimited · Windows

Free mixer with ClearCast suppression on your mic and incoming voices. Any headset, no SteelSeries gear needed.

How the audits work

Three rules before anything earns the mint chip. It must be permanent — a tier you can still be using next year, not a 7-day countdown. It must be usable — enough allowance to solve a real week, not a 90-second demo. And its caps must be published, because a free tier you can't plan around is just a surprise invoice with extra steps. Every cap on this site was re-checked against vendor pages on July 30, 2026 and stamped onto its receipt.

Start with your actual problem

Colleagues complain about your background noise on calls: the free noise cancelling apps for calls roundup, five options ranked by how much free you really get. A recording that already sounds like a café: remove noise from audio online free — caps compared before you upload. A Windows machine and a hunch your GPU can help: the free noise cancelling software for Windows guide. And when the meters keep beating you, free vs paid does the honest arithmetic on giving in.

Fair questions

Is there genuinely free noise cancelling software, or is it all trials?: Genuinely free exists in two shapes: capped-but-permanent tiers (Krisp's 60 minutes a day, Adobe Enhance's hour a day) and actually-unlimited free tools with a non-money catch (NVIDIA Broadcast needs an RTX GPU, SteelSeries Sonar is Windows-only, Audacity isn't live). We audit both shapes and name the catch.
What's the best free option for live calls?: If you own an RTX 2060 or better on Windows: NVIDIA Broadcast, no meter at all. Everyone else: Krisp's free plan — 60 minutes a day of real two-way noise cancellation on Windows or Mac. The calls roundup ranks all five options.
And for cleaning a recording I already have?: Adobe Podcast Enhance's free tier — up to an hour a day, files to 30 minutes. It's the biggest no-cost cleanup allowance on our shelf, and the online-cleanup guide shows the caps before you upload.