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Free · 5 formats · CBR + VBR · Lossless WAV & FLAC

Extract Audio

Pull the audio track out of any video — choose MP3, WAV, OGG, M4A, or FLAC. Quality presets, mono/stereo, optional VBR for lossy formats.

100% freeNo file size limitNo watermarkNo sign-up
  1. 1Pick file
  2. 2Configure
  3. 3Download
Picks any video format as input — we extract only the audio so processing is fast. Pick the output format on the next step based on use (MP3 universal, WAV/FLAC lossless for editing, M4A Apple-friendly, OGG open-format).
  • Files never leave your browser — processed entirely on your device
  • No upload, no queue, no waiting for a worker to free up
  • No file-size cap from us — limit is your device's RAM

About Extract Audio

AntiUpload's Extract Audio tool is the pro-user version of audio extraction: instead of just MP3, you pick the output format from the five mainstream audio container/codec pairs that real-world editing pipelines expect — MP3 (universal lossy), WAV (uncompressed PCM for editing), OGG Vorbis (open lossy), M4A AAC (Apple-friendly), or FLAC (lossless compressed for archival). Each format gets its own encoder configured for that codec's strengths: libmp3lame for MP3, native AAC encoder for M4A, libvorbis for OGG, PCM 16-bit for WAV, and flac with compression level 5 for FLAC.

If your goal is just a phone-friendly audio file for casual listening, our MP4-to-MP3 tool is the simpler one. This tool is for users who know specifically which format and encoding profile they want — sound designers extracting WAV for a Logic / Pro Tools project, archivists pulling FLAC for long-term storage, audio editors who need M4A for AirDrop into iOS apps. The format dropdown drives the codec; the bitrate ladder (for lossy formats) and a VBR toggle (for variable bitrate encoding on MP3 / OGG / M4A) control quality.

Lossless formats — WAV and FLAC — don't expose a bitrate setting because their output size is determined by the source audio's sample rate, bit depth, and (for FLAC) actual content, not a user-chosen target. The UI hides the bitrate picker when you pick WAV or FLAC. The bitrate ladder for lossy formats (64 / 96 / 128 / 192 / 256 / 320 kbps) is the same ladder all five codecs respect; under VBR mode, each codec's matching quality target is used (libmp3lame V0, vorbis q6, AAC q5). The whole encoding pipeline runs locally on your device via FFmpeg WASM — no upload, no file-size cap, no watermark.

How it works

  1. Drop your video fileAccepts every common container: MP4, MOV, WebM, MKV, AVI, M4V, FLV. The tool drops the video stream and only re-encodes the audio, so processing is faster than a full video conversion.
  2. Pick the output formatMP3 for compatibility, WAV for editing, M4A for Apple, OGG for open-format projects, FLAC for archival lossless. The bitrate / quality controls below adjust based on format — WAV / FLAC hide the bitrate picker (they're lossless).
  3. Choose CBR or VBR (for lossy formats)CBR (constant bitrate) gives predictable file sizes. VBR (variable bitrate) gives smaller files at the same perceived quality by spending more bits on complex passages and fewer on simple ones. VBR is the modern recommendation for non-streaming use.
  4. Set channels if neededPreserve source layout is the default. Mono cuts file size in half — useful for podcast / voice content. Stereo upmixes mono source (rarely useful).
  5. Click ExtractAudio-only re-encoding is fast: a 1-hour video typically extracts to FLAC in ~30s on a modern laptop. WAV is fastest (no encoding work, just sample conversion). MP3 and AAC take slightly longer.

When to use Extract Audio

Extracting WAV from a video clip for Pro Tools / Logic / Reaper
DAW projects need uncompressed PCM audio. WAV at the source's native sample rate (44.1 / 48 kHz) is the standard hand-off. Pull the audio here as 16-bit WAV, drop into the DAW, no quality loss vs source.
Archiving event recordings to FLAC for long-term storage
MP3 is fine for casual listening but FLAC is the right choice for archival because it's lossless. Original audio fidelity preserved indefinitely, with ~50% size savings over WAV. Best for live concert recordings, oral histories, podcast masters.
Converting iPhone screen recordings to M4A for AirDrop into voice memo apps
iPhone screen recordings are .mov with AAC audio. M4A output is the same AAC codec in a stripped container that AirDrops cleanly into iOS Voice Memos, Notes, and other native apps without re-encoding.
Building an open-format audio archive in OGG Vorbis
OGG is the audio format of the open-source world (used by Wikipedia, Linux distros, web standards). Extract to OGG when the destination is patent-free / open-source pipelines, or when you want to dodge MP3 / AAC licensing entirely.
Sample-pulling from videos for a music project
Music producers sample dialogue, ambient sound, or instrumental passages from videos. Extract to WAV at the highest quality, drop into your sampler. The lossless path matters — every subsequent processing step compounds quality loss if you start lossy.

Frequently asked questions

What's the difference between MP3 and M4A?
MP3 is older (1993) and universally supported. M4A wraps AAC (Advanced Audio Coding, the modern successor) and gets better quality at the same bitrate — a 128 kbps M4A sounds noticeably cleaner than a 128 kbps MP3. M4A is the default for iTunes / Apple Music and works everywhere modern. Choose MP3 only if you need playback on a 20-year-old MP3 player.
When should I use WAV vs FLAC?
WAV is uncompressed — every byte represents audio samples directly. Maximum compatibility (every editing tool reads it), maximum size (~10 MB/min for stereo 16-bit 44.1 kHz). FLAC is lossless compressed — bit-perfect reconstruction of the original, but ~50% smaller. For active editing, WAV is faster to read. For storage, FLAC saves disk. Both are bit-identical at decode time.
Why is VBR better than CBR at the same bitrate setting?
VBR spends more bits encoding complex audio (orchestral peaks, dialogue with background music) and fewer on simple audio (silence, single instruments). At a "192 kbps target" VBR setting, the average bitrate ends up around 180 kbps but the perceived quality matches or exceeds 256 kbps CBR. VBR is the modern recommendation for non-streaming files. CBR is preferred only when a player needs predictable bitrate for streaming or buffer planning.
How to extract lossless audio from MP4 / MOV for free?
Pick FLAC output in our Extract Audio tool. There is no size cap on input (most cloud tools cap free users at 100 MB and don't offer FLAC at all on free tiers). The output is bit-identical to the source audio stream — no quality loss from the extraction step itself. The source quality is whatever the original video had encoded; we can't add resolution that wasn't there.
Does it work on HEVC / H.265 video?
Yes — the tool decodes any video codec FFmpeg supports (H.264, H.265 / HEVC, VP9, AV1, ProRes, MPEG-2). HEVC iPhone recordings work fine. The decode is software (no hardware acceleration in WASM), so HEVC sources take slightly longer than H.264 sources, but the result is identical.
Best free no-watermark audio extractor?
AntiUpload Extract Audio — five output formats, no watermark, no signup, no size cap. Compare to AudioExtractor.net (watermark on free), Online Audio Converter (50 MB free cap), Movavi (free tier watermarks output), Audacity (desktop, not browser, but the gold-standard free alternative).
How long does extracting audio from a 1-hour video take?
WAV: ~15 seconds (no encoding, just sample conversion). MP3 192 kbps: ~30 seconds. FLAC: ~45 seconds (compression takes work). M4A AAC: ~40 seconds. OGG Vorbis: ~50 seconds. All times measured on a modern laptop (Apple M-series / Intel 11th gen+). Older devices are slower; modern phones are slower still.

Related tools

MP4 to MP3Extract MP3 audio from MP4 (or MOV / WebM / MKV / AVI) — quality presets from 64 to 320 kbps, plus VBR for transparent qualityAudio TrimmerCut a clip out of an MP3, WAV, M4A, OGG, FLAC, AAC, or OPUS — fast and lossless, no re-encodeChange Audio VolumeMake an audio file louder or quieter — multipliers from 0.25× to 3×, output to MP3 / WAV / M4A / OGG / FLACAuto SubtitlesGenerate .srt or .vtt captions from speech using Whisper-tiny — runs entirely in your browser, downloads a 75 MB model on first use