Background Audio Remover

A background audio remover — some people call it an audio background remover — takes the sounds you don’t want out of a recording and leaves the voice. This one does it with speech models: they have learned what voices sound like, keep them, and turn everything else down.

Unlike most online tools, it works on the video itself. You drop an MP4, MOV, WebM or MKV and get the same video back with clean sound; the picture is copied without re-encoding. Audio files (MP3, WAV, M4A, FLAC, OGG) work too. There is no account, no watermark, and you can hear Original and Clean side by side before you download.

Above the drop zone you choose what goes. Most files only need the first option.

• Remove noise (the default) — wind, hum, fans, traffic and room noise. Fast: it runs in your browser, usually quicker than the file plays, and nothing is uploaded.
• Remove music — for videos with talking over music: the music goes, the voice stays. On the result, slide Keep other sounds to 0 for the voice alone, or up to 100 to keep footsteps, traffic and room sound too; you hear it at once. For speech, not for splitting a song into vocals and instrumental. More about removing music from video

“Remove music” takes longer, about 2 minutes or more per minute of sound. It runs locally on your device or, if you choose, in our cloud.

Most noise removers upload your video to a server. This one doesn’t. Your browser downloads the noise-removal model once (about 12 MB, then it is cached) when you open the page — or, in Chrome on Android with mobile data or Data Saver on, only when you add a file. “Remove music” uses a second, larger model (about 54 MB), which is downloaded only when you run it on your device. When you drop a file, your browser reads it, processes the sound and writes the new file — all on your own computer or phone.

For “Remove music” you can also choose Cloud (our processing server, reached through Cloudflare) instead, which is faster on phones. Then, and only then, your file is uploaded, processed in the cloud and deleted after processing (within 2 hours after a free preview); the result (and the voice and other sounds as two separate tracks, for the “Keep other sounds” slider) is kept for 24 hours so you can download it. Noise removal never uploads anything.

• The models: DeepFilterNet3, an open-source speech enhancement model, for noise; Bandit v2, an open model that splits speech, music and other sounds, for “Remove music”. Both run as WebAssembly in your browser; if you choose “Cloud”, Bandit v2 runs there instead, with the same settings.
• The picture: copied into the new file exactly as it was. It is not decoded or re-compressed, so there is no quality loss and it is fast.
• The sound: processed, then saved at the same bitrate as your original sound, so the new file is about the same size.
• Nothing to delete: there is no account. With “Local” your original is never uploaded; with “Cloud” it is deleted after processing (within 2 hours after a free preview). If you ask us to email you a download link, the finished file is stored for 24 hours and then deleted.

• The same kind of file. MP4 stays MP4, MOV stays MOV, WebM stays WebM, MP3 stays MP3, WAV stays WAV — M4A, AAC, OGG and FLAC too.
• A clear voice, quiet pauses. Noise is removed during speech and in the gaps between words.
• Music removed too, if you want. “Remove music” takes the music out; then the “Keep other sounds” slider sets how much of the rest stays, from the voice alone to the voice with traffic and footsteps. Singing counts as music and goes with it.
• Voice warmth, if you want it (with “Remove noise”). Noise removal can make a voice a little thin. Voice warmth (Light, Medium, Strong) adds low tones back only while someone is speaking, so the noise doesn’t return in the pauses. Off is the default.
• No watermark, and long files are fine. On your device, “Remove noise” takes files up to 3 hours long on a computer (30 minutes on a phone), “Remove music” up to 60 minutes (10 on a phone), and up to 4 GB (1 GB on a phone). Before a long run on your device, the page shows how long it will take there (and in the cloud, for “Remove music”), so you can choose. Cloud takes files up to 20 minutes (Pro: 60) and 100 MB.