Remove background noise from video
Reduce background noise in your video’s audio for free. Compatible MP4 and MOV files keep the original footage. Compare the sound before downloading. No uploads or signup.
Denoise
Live Runs in your browserChoose a video to reduce background noise
No signup needed
MP4 MOV WEBM
Complete-file cleanup · Free · No upload
- Reading file Waiting
- Loading engine Waiting
- AI cleanup Waiting
- Full file ready Waiting
Complete file ready
-
This browser cannot play the original file directly, so comparison is unavailable.
Your recording was processed on this device without uploading it.
Hear the difference
A real recording processed with QuietTake. Switch between the original and cleaned audio to hear the difference.
Play the sample to load the audio and waveform
Sample / Aircraft maintenance interview on a flight line
Source: E-3 Sentry maintenance b-roll and interviews by Sgt. Michael Risinger, marked Public Domain by DVIDS. The video excerpt and cleaned audio are derived from this recording.
Noise removal runs on this device. Your recording is not uploaded to our servers or used to train models.
How to remove background noise
Choose a recording
Select an audio or video file, or drag it into the box above. Noise removal reads the file on your device without uploading it.
Load the noise reduction model
The browser downloads the model when you choose a file. Wait for it to finish loading before processing starts.
Reduce background noise
The model processes the entire audio track on your device. Processing time depends on the recording length and your device’s speed.
Compare and download
Switch between the original and cleaned audio. Use the waveform to check a passage, then download the result. Comparison requires the browser to play the original file.
Video formats, downloads and limitations
Clean the sound while keeping the picture
This tool reduces background noise in speech, not grain or blur in video frames. Select the original video above. A compatible MP4 or MOV lets the tool copy its video track without re-encoding and replace the audio with cleaned speech. The source file stays unchanged on your device.
Download MP4 or save the audio
The video output is MP4 with the original video stream and a new 48 kHz mono AAC track. Stereo audio is mixed to mono; loudness is not normalised. Check speech, lip sync and the beginning and end before publishing. Extra tracks, subtitles and container metadata are not guaranteed to survive export.
Some files can be decoded for audio but cannot be saved as video. WebM or a video track that cannot be read may produce M4A audio only. Video export can fail for incompatible codecs or large files; in that case, extract the audio yourself and clean it separately. Keep your source video so you can replace its soundtrack in an editor. An MP4 extension alone does not guarantee compatibility.
Browsers, large files and recovery
Use a recent Chrome, Edge or Safari with AAC encoding support. Firefox cannot complete this export if the required AAC encoder is unavailable. Files that need full decoding use more memory than indexed MP4/MOV. Long recordings take longer, and a device may not have enough memory for a large video export. Keep this tab open; try a shorter file if processing fails.
Listen before publishing
The balanced noise reduction setting is designed for speech. Background conversation can remain, music may be reduced, and clipping or heavy wind cannot reliably be repaired. This is not a guaranteed echo remover. Switch between Original and Cleaned and use the waveform to revisit words and breaths; a quieter background alone does not mean a better voice. See the audio processing limits.
Replace the audio yourself when needed
If you saved cleaned audio separately, use a video editor or FFmpeg on your device. For matching full-length files:
ffmpeg -i original.mp4 -i cleaned.m4a \
-map 0:v:0 -map 1:a:0 \
-c:v copy -c:a aac -b:a 192k \
output.mp4
The command copies the video and encodes the replacement audio. Confirm duration and sync. For multiple cameras or separate microphones, choose and clean the relevant track before the final mix.
Video noise removal FAQ
Does noise removal upload my file?
No. Noise removal reads and processes your file in your browser. Your recording is not sent to our servers or used to train models. Other tools explain their own data processing before you use them.
Is the whole recording free to process?
Yes. You can process the entire recording and download the result for free, without an account or payment details. Practical limits depend on your device and browser.
Will noise removal change the video image?
For compatible MP4 and MOV files, the video track is copied without re-encoding. Only the audio is replaced with mono AAC. This tool does not remove grain or blur from the image.
Why did I get an M4A file instead of a video?
If the audio can be read but the video track cannot, the result may contain only M4A audio. Keep the source video so you can replace its soundtrack in an editor. If export fails altogether, extract the audio in an editor and process that file separately.
Can I remove music or a specific person’s voice?
The model enhances speech and does not let you choose which speaker to keep. Other voices may remain, and music may be reduced. Check the result before using it in your video.
Can I process a long video?
Processing time and file size limits depend on your device. MP4 and MOV files with a readable index can be processed in blocks; other formats may need more memory. Keep the tab open and try a shorter clip if processing fails.
Which browsers can I use?
Use a recent version of Chrome, Edge or Safari. Export requires AAC encoding support, which depends on your browser and operating system. If the tool reports that the encoder is unavailable, try another browser.