Remove Audio from Video Online
Remove the audio track from any video. Free, in your browser, no file uploads.
.mp4, .mov, .avi, .mkv, .webm · up to 100 MB
What you can do
Remove audio from videos without quality loss
No quality loss
Video stream copy: no re-encoding. The video remains bit-for-bit identical.
100% private
FFmpeg WebAssembly processes the video in your browser. Never uploaded to any server.
All formats
Compatible with MP4, MOV, MKV, WebM, AVI and more. Universal MP4 output.
Instant
No queues, no waiting. Processing happens directly on your device.
How it works
Three steps, no hassle
Upload your video
Drag or select any MP4, MOV, MKV, or WebM video file. Up to 2 GB, no registration required.
Processing on your device
FFmpeg WebAssembly removes the audio track using the -an flag with stream copy (-c:v copy), without re-encoding the video. The process happens entirely in your browser.
Download the silent video
Get a video identical to the original but with no audio. File size is reduced by the weight of the removed audio track.
FAQ
Got questions?
No. The operation uses video stream copy (-c:v copy in FFmpeg), meaning the video stream is extracted and written to the new file with no re-encoding process. The resulting video is bit-for-bit identical to the original in terms of visual content. There is no quality loss, no additional artifacts, no change in resolution, bitrate, or video encoding. The only difference is the absence of the audio track.
In the vast majority of cases, no. The process of removing audio is a demuxing and remuxing operation: the multimedia container (MP4, MKV, MOV) is read, the video stream is extracted untouched, and a new container is written with only that stream. FFmpeg does this with -c:v copy -an, where -an means 'no audio' and -c:v copy means 'do not re-encode the video'. The only exception where re-encoding occurs is if the target container is not compatible with the source video codec, which does not happen with common formats.
The tool accepts the most common video formats: MP4 (H.264, H.265/HEVC), MOV (QuickTime), MKV (Matroska), WebM (VP8, VP9, AV1), AVI (DivX, Xvid, H.264), and FLV. The output format is MP4 with the original video stream preserved. MP4 is the format with maximum compatibility: it works on all browsers, operating systems, smartphones, and social media platforms. FFmpeg WebAssembly supports the same codecs as the native desktop version.
Yes, this is one of the most common use cases. The typical workflow is: (1) remove the original audio with this tool, (2) open the silent video in a video editor (DaVinci Resolve, CapCut, Adobe Premiere, Final Cut Pro), and (3) add the new audio track — background music, narration, corrected audio, or royalty-free soundtrack. This workflow is especially useful when the original audio has background noise, when it needs to be replaced with audio localized in another language, or when the recording has speech that cannot be published under confidentiality agreements.
It depends on the original audio bitrate. An AAC audio track at 128 kbps in a 60-second video occupies approximately 1 MB. A high-quality audio track (AAC 320 kbps or uncompressed PCM) can occupy significantly more. In long videos (1 hour), removing audio can reduce file size by 50–200 MB depending on audio quality. In short social media videos (30–60 seconds), the reduction is minimal (1–3 MB). Note that high-quality audio like uncompressed PCM/WAV in MOV containers can occupy as much as the video itself.
The most common use cases are: NDA compliance where audio contains sensitive information before sharing a screen recording or meeting recording; removal of unwanted background noise in camera recordings before adding studio audio; preparation of content for social media where video plays muted by default (Instagram feed, LinkedIn, TikTok with sound off); replacement of copyrighted music with royalty-free music to publish on YouTube without Content ID claims; and preparation of video templates for other creators who will add their own audio.
Remove audio from video: how it works and when to use it
Removing the audio track from a video is technically simple but has numerous professional and creative applications. The most widely used tool for this task in production environments is FFmpeg, the open-source multimedia framework developed by Fabrice Bellard in 2000 and currently maintained by a global community. The specific operation is performed with the -an flag (audio none), which instructs FFmpeg not to include any audio stream in the output file. Combined with -c:v copy (video stream copy), the process is a pure remuxing operation: the video stream is read from the original container and written to the new container without any decoding or re-encoding. This guarantees zero image quality loss, as video frames are never touched during the process. Processing speed is very high because there is no computational encoding work, only reading and writing data. Modern multimedia containers like MP4 (ISO Base Media File Format, standardized as ISO/IEC 14496-12) and MKV (Matroska, based on EBML) are designed as multi-stream containers: they can simultaneously contain one or more video streams, one or more audio streams in different languages, subtitles, chapters, and metadata. Removing audio is simply omitting the audio streams when writing the new container. In MP4, streams are organized as 'tracks' inside the file: the video track has its own 'moov atom' with timing metadata and the audio track has its own. FFmpeg rewrites the MP4 file including only the video track.
Use cases for silent videos are more varied than one might expect. In the corporate and legal space, non-disclosure agreements (NDAs) are a common reason: recordings of work meetings, product demonstrations, or code reviews contain sensitive conversations that cannot be shared externally. Removing audio before sending a screen recording to an external vendor or publishing it in technical documentation is standard compliance practice at technology companies. In digital content production, audio replacement is a common workflow: record video with production audio (which may have background noise, room echo, or unwanted conversations), remove that audio, and add licensed background music, studio narration, or professional-quality sound effects. For YouTube publications, replacing copyrighted music with Content ID-free music avoids claims that monetize the video in favor of rights holders or block it in certain countries. In the social media ecosystem, the default muted autoplay of videos on Instagram (feed), LinkedIn, and Facebook means many creators prefer publishing videos optimized for silent playback, adding subtitles and on-screen text. A video with a high-quality audio track played muted adds unnecessary weight to the file. For TikTok and Reels where audio is part of the experience, the reverse workflow is more common: removing the original audio to add a trending platform audio.
From a technical standpoint, it is important to distinguish between different audio codecs that may be present in a video and how they affect the process. AAC (Advanced Audio Coding) is the most common audio codec in MP4 and MOV, especially in content recorded on iPhone, iPad, and modern action cameras. AC-3 (Dolby Digital) and E-AC-3 (Dolby Digital Plus) are present in streaming content and Blu-ray. Opus is the standard codec in WebM and WebRTC content. Uncompressed PCM (LPCM) appears in professional camera recordings and video editor exports. Regardless of the original audio codec, FFmpeg's -an operation simply omits all audio streams, regardless of codec. The resulting video is a valid file that can be played in any media player, edited in any video editing software, and published on any platform. The compatibility of the resulting video is not affected by the absence of audio: media players handle videos without an audio track correctly, simply showing the audio icon as muted or absent.