Remove Background Noise From Audio for Free: Where to Do It (2026)

Last checked: October 2026.

A hum from the fridge, traffic outside, a laptop fan, an echoey kitchen: background noise turns a good recording into one people switch off. If you want to remove background noise from audio without booking a studio, AI clean-up tools can now do in seconds what used to take an engineer and a lot of patience.

Free in this category tends to mean a free plan with a monthly allowance, a free tool that works on the first part of a file, or open source software that stays free. I've included a mix of well-known names and smaller, independent tools, because the specialist ones are often the fastest fix for a single job.

Background noise removers compared at a glance

The Free plan column shows Yes, No or Trial only, based on each tool's own site. Yes means there's a free plan, free allowance or free software. Trial only means you can try it for a limited time but there's no ongoing free option. Allowances change, so check before you plan a whole series around one tool.

Tool	Type	Good for	Free plan
Adobe Enhance Speech	Online AI speech filter	One-click clean-up of spoken recordings	Yes
Audacity	Open source audio editor	Hands-on noise reduction with full editing control	Yes
Audo	Online audio enhancer	Removing noise and echo from short clips	Yes
Auphonic	Automatic audio post-production	Levelling and noise reduction for podcast episodes	Yes
Cleanvoice	AI podcast editing tool	Noise, filler words and mouth sounds in one pass	Trial only
Descript	Text-based audio and video editor	Cleaning voice inside an edit-by-transcript workflow	Yes
Krisp	Live noise cancellation app	Blocking noise during calls and meetings as they happen	Trial only
LALAL.AI	Online voice separation service	Separating a voice from background music and rumble	Yes

Eight tools that clean up noisy recordings, in no particular order

These are listed alphabetically and in no particular order. Each description comes from the tool's own website.

Adobe Enhance Speech

Best for: Podcasters and course creators who want a quick, one-click clean-up of voice recorded in a noisy room.

Audacity

Best for: People who like to edit audio themselves and want a long-standing desktop editor that stays free.

Audo

Best for: Quick fixes on short voice clips, such as a voice note or a social video snippet, straight in the browser.

Auphonic

Best for: Podcasters who want noise reduction plus balanced volume across a whole episode without manual mixing.

Cleanvoice

Best for: Interview shows that need background noise, filler words and long silences tidied together before publishing.

Descript

Best for: Creators who edit by deleting words from a transcript and want voice clean-up in the same place.

Krisp

Best for: People on lots of video calls who want noise filtered live, so there's less to fix afterwards.

LALAL.AI

Best for: Recordings where music, hum or mic rumble sits under the voice and needs pulling apart cleanly.

What kind of noise is in your recording?

Different noise needs different treatment, and knowing which one you've got helps you pick the right kind of tool.

• Steady noise, like hiss, hum, air conditioning or a fan, is the easiest to remove because it doesn't change.
• Changing noise, like traffic, dogs, children or a café, is harder and usually needs an AI voice clean-up.
• Echo and room sound come from hard walls and floors. Some tools treat echo separately from noise.
• Music under speech needs a tool that separates the voice from everything else.
• Clicks, pops and plosives are tiny sounds that sometimes need their own fix.

How do you clean up a noisy recording step by step?

1. Make a copy of the original file and never work on the only version.
2. Listen to the first minute on headphones and note what the noise is.
3. Run the clean-up on a short test section before you process the whole file.
4. Compare the before and after on headphones and on your phone speaker.
5. If the voice sounds robotic or underwater, lower the strength and try again.
6. Process the full recording, then export it in the format your podcast host or video editor needs.

If your noisy recording has music under it, my guide to separating vocals from a song with AI explains how voice separation works from the other side.

Why does my voice sound robotic after noise removal?

That watery, metallic sound is called an artefact. It happens when a tool removes so much that it starts eating into your voice.

• Turn the strength down. A little background sound is far less distracting than a damaged voice.
• Fix the biggest problem only, rather than stacking several clean-up effects on top of each other.
• Start from the best quality original you have, not a compressed copy from a messaging app.
• If a recording is very noisy, re-recording a short section is often quicker than rescuing it.

How can you record cleaner audio next time?

Clean-up tools are brilliant, but the best fix is less noise going in. These small habits make the biggest difference.

• Get the microphone close to your mouth, roughly a hand's width away.
• Record in a room with soft furnishings: curtains, a sofa and a rug all soak up echo.
• Switch off fans, heaters and notifications before you press record.
• Record a few seconds of silence at the start so tools can learn the room's background sound.
• Wear headphones so your speakers don't leak into the microphone.

If you're recording demos, my guide to recording your screen and audio together covers set-up, and my step-by-step podcast guide walks through the rest of the process.

Do you make an AI audio clean-up or noise removal tool? Tool makers can ask to be considered for a featured place on this list.

Before you publish your cleaned-up audio

Play the final version all the way through on the kind of device your audience uses, usually a phone with earbuds. If the voice sounds natural and the noise no longer pulls your attention, you're ready. Keep the original file safe in case you want to try a different setting later.

Frequently asked questions

Can you remove background noise from audio for free?

Yes. Free plans, free allowances and open source editors can all remove background noise. Most free options limit file length or the number of hours you can process.

Can AI remove background noise from a video?

Yes. Many clean-up tools accept video files and return the video with cleaner sound, or you can export the audio, clean it, and put it back in your video editor.

Will noise removal make my voice sound worse?

It can if the setting is too strong. Lower the strength, compare with the original on headphones, and stop as soon as the voice starts to sound watery or metallic.

What's the difference between noise removal and noise cancellation?

Noise removal cleans a recording after it's made. Noise cancellation filters sound live while you're talking, such as during a call.

Can I remove echo as well as background noise?

Often, yes. Some tools treat echo and room sound as a separate setting, so look for an echo or reverb option alongside noise reduction.