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Best free noise removal tools how much free processing you actually get

Cleaning up a noisy recording is one of the few AI jobs where the free tiers are measured in hours or minutes per month rather than files per day. Here is what 11 of them actually allow, checked on 2 October 2026. CleanGrab is ours; every other number comes off their own pricing page — where one doesn't publish a figure, we say so instead of guessing.

The cleaned file is the free file. No watermark, no trial length, no account — files up to 45 minutes. A pass adds loudness levelling and a heavier repair pass for rough recordings.

By ShinobiTools Team · Last updated: 2 October 2026

Clean a recording, free →

What free actually means here

Read off each tool's own pricing page on 2 October 2026. Where a site doesn't publish a number, the cell says so rather than guessing one. Each row links to the page we read.

The 11 tools, one by one

What each one actually does, and the catch we found on its own pricing or product page.

CleanGrab (ours)

Works as a bg noise remover for hum, hiss, fans, traffic and room tone in a voice recording or a video's audio track. No account, no monthly hour allowance, no watermark — free, 10 cleanups a day, up to 45 minutes per file. This works on a recording you already have, not a live mic feed — for cleanup during a call in progress, see Krisp and the hardware options further down. Stated plainly: CleanGrab is built for speech, not music. If what's competing with the voice is a song or an instrument rather than noise, StemGrab's stem separation does a cleaner job of pulling the voice out.

Adobe Podcast Enhance

The best-known free speech enhancer. Its free plan, on an Adobe account, caps each file at 30 minutes and 500 MB and the whole day at 1 hour of processing; it is audio only, one file at a time, with no strength control. The paid Firefly Pro plan raises that to 4 hours a day and 1 GB files and adds video, bulk upload and adjustable strength; the plans page does not show its price. We have not tested Adobe against CleanGrab on a fair set of recordings, so we make no claim about which sounds better.

Auphonic

Full podcast post-production: loudness targets, levelling and noise reduction in one pass, not just noise removal. Free for 2 hours of processed audio a month, and free productions come with an Auphonic jingle; more hours are bought as recurring or one-time credits. Good if levelling is part of the job; overkill and rate-limited if noise removal is the only thing you need.

Krisp

Sits between your microphone and whatever app you're calling through, so it removes noise live, during the call, rather than from a recording afterwards. Nothing else on this list does that. There is no standing free plan any more: Krisp offers a 7-day free trial, then Core at $8 a month billed annually ($16 month to month). It can't help with a file you've already recorded — for that, everything else here applies and Krisp doesn't. That puts it in the same bucket as a GPU driver's built-in noise suppression or a headset's own hardware noise cancelling: live mic-feed cleanup, not a file you clean after the fact.

Audacity

Free, open source (GPLv3) and unlimited, with a manual noise-reduction filter people have been learning to use since the 2000s. No account, no server upload, no monthly cap — the only genuinely unlimited free option here. The catch runs the other way from everything above: you set the parameters and judge the result yourself, so a bad setting can sound worse than doing nothing. Video editors have their own manual routes too: DaVinci Resolve's Fairlight page has a built-in noise-reduction plugin, and Premiere Pro and most DAWs accept third-party noise-reduction plugins, for anyone who'd rather stay inside their edit than export first.

Cleanvoice

Aimed squarely at podcasters: strips filler words, mouth sounds, breaths and silences as well as background noise, in one editing pass. You get 30 minutes free after signing up, no credit card; after that it is $11 for 5 hours pay-as-you-go, or $11 a month for 10 hours.

LALAL.AI Voice Cleaner

From the team behind the LALAL.AI stem splitter, so it's built to isolate a voice out of a mix rather than just smooth over steady hum. The free Starter tier processes up to 200MB in a slower "Relaxed" queue and caps you at 10 minutes — and its own plan-comparison table lists result downloads as a paid-only feature, so the free tier lets you hear what it did, not keep it. Paid plans start at Lite, €81 a year (€6.75 a month billed annually).

Descript Studio Sound

Noise removal built into Descript's video/podcast editor. The free plan gives 60 media minutes a month and 100 AI credits (one-time), with exports capped at 720p and a watermark; on that plan Studio Sound is marked "limited". Watermark-free export starts at Hobbyist, $16 a month billed annually. Makes most sense if you're already editing in Descript for other reasons.

Veed (Clean Audio)

One-click noise removal inside Veed's browser video editor. Veed's own FAQ says videos made on the free plan carry a watermark in the corner, removed on any paid plan. The free plan's other limits and the prices load in JavaScript and we could not read them, so we list none. Makes more sense if you're already exporting video through Veed than as a standalone noise tool.

Noise-reducer.com

No account needed to try it, and it previews every file free in about 30 seconds. The catch is the download: getting the actual cleaned file out costs money, either $0.02 a minute pay-as-you-go or a subscription from $6.99 a week. So it's free to test, not free to keep. Files are auto-deleted within 24 hours.

VoiceCleaner.ai

Its homepage calls it "100% free" and it accepts unusually large jobs — up to 3 hours or 10GB in one file, across 20-plus formats including MP3, M4A, FLAC, MOV and MKV, with uploads auto-deleted within 24 hours. The same page also says "Log in to receive credits for free", so whether you need an account beyond a first try is unclear, and no cap on output quality is published.

Where the others are better than CleanGrab

• Adobe Podcast Enhance sits inside a bigger toolset (a browser studio to record and edit), and its paid plan goes to 4 hours a day with separate strength for speech, music and ambience.
• Auphonic does loudness targets and levelling on its free hours; CleanGrab only adds podcast loudness with a pass.
• Krisp cleans your microphone live during a call. CleanGrab only works on a file you already have.
• Audacity is unlimited, offline and never uploads anything. CleanGrab uploads to our servers and stops at 10 a day.
• Cleanvoice also removes filler words, mouth sounds and breaths, which CleanGrab doesn't touch.
• LALAL.AI is built to pull a voice out of music; CleanGrab is built for speech against noise.
• Descript and Veed are full editors, so you clean and edit in one place.
• VoiceCleaner.ai accepts files up to 3 hours and 10 GB; CleanGrab's free tier stops at 45 minutes and 1 GB.
• Heavy echo: CleanGrab reduces light echo; its deeper echo and repair mode needs a pass.

Why people pick CleanGrab

• No account, and no watermark on the free file.
• 10 cleanups a day that reset at midnight, each up to 45 minutes and 1 GB, three per batch.
• Audio and video: MP3, WAV, FLAC, M4A, AAC, OGG and more; an MP4, MOV, MKV or WEBM comes back with the picture copied untouched.
• The upload is deleted after processing and the cleaned file within 45 minutes.
• If 10 a day isn't enough, a pass costs €3 for 24 hours or €5 for 30 days, one-off, no subscription, and works on all 11 of our tools. It raises the limits (files up to 3 hours, 50 a day) and adds the deeper echo mode and podcast loudness; it doesn't change the quality.

Which noise reduction audio tool fits your problem

These do genuinely different jobs — the word "noise" hides four separate problems:

• A recording that already exists, with hum, fans or traffic — CleanGrab or Adobe Podcast Enhance. Adobe needs an account and caps its free plan at 1 hour a day; CleanGrab needs no account and does 10 a day. Compare both on the same clip. The full comparison is on our Adobe Podcast alternative page.
• A voice that should simply sound clearer — our free audio enhancer for recordings and video, or the AI voice enhancer for voice memos, calls and interviews. Same cleaning, no sign-up.
• Noise on a live call — Krisp. It sits between your microphone and the app, so the other side hears you clean. Nothing else on this list does that.
• A whole podcast episode that also needs levelling — Auphonic, which does loudness targets and levelling as well. Watch the 2 hours a month.
• Ums, stutters and mouth clicks — Cleanvoice, or our own filler-word removal in ScribeGrab. That is editing, not noise reduction.
• Full manual control, offline — Audacity. Free forever, and the only one here where you decide exactly how much gets removed.
• Pulling one voice out of a busy mix — LALAL.AI Voice Cleaner, built by the same team as the LALAL.AI stem splitter, so it's tuned to isolate a voice rather than just smooth over steady noise. Its free tier lets you hear the result but not download it.
• Already editing video, want noise gone without leaving the timeline — Veed's Clean Audio or Descript's Studio Sound, if you already pay for one of those editors. Descript's free plan gives 60 media minutes a month with a watermark; Veed's free plan watermarks too.
• Don't want to sign up for anything — Noise-reducer.com skips the account, but its download is pay-per-minute. VoiceCleaner.ai calls itself free but also asks you to log in for credits.

What noise removal cannot fix

Every tool on this list, ours included, works by separating speech from everything else. That works well for steady noise — a fan, an air conditioner, traffic hum, mains hum. It works poorly for two things, and no amount of AI changes that:

1. Room echo. A recording made in an empty room with hard walls has the voice smeared across the reverb. Removing that means removing part of the voice. Tools that promise to fix it usually just make it sound thinner.
2. Another voice. A person talking in the background is speech, so a speech-preserving model preserves it. That is a mixing problem, not a noise problem.

The fix for both is at the recording end: closer microphone, softer room, and a few seconds of silence at the start so the tool can hear what the noise sounds like on its own.

How we checked

We opened each tool's own pricing or product page on 2 October 2026 and wrote down the free allowance, the account requirement, the price and how long files are kept, with a link to that page in each row. Where a page didn't state something, loaded it in JavaScript or blocked our reader, the cell says so instead of guessing. We did not run noisy recordings through the 11 tools and rank the output: a fair quality test needs at least 10 recordings through every tool, and we haven't done that, so this page makes no quality ranking.

CleanGrab runs a deep-learning model on computers we operate ourselves, which is why there is no monthly hour allowance to run out of. Uploads are deleted right after processing.

Just want the general-purpose tool? See removing background noise from audio, or go straight to removing hum and hiss if that's specifically what you're hearing.

Common questions