Video to MP3 Converter

Convert Video to MP3 Online — Free

To convert video to MP3, upload any video — MP4, MOV, MKV, WebM, and more — pick a bitrate like 192-256 kbps, then click Convert to get just the audio as an MP3. The file uploads to our servers, the soundtrack is extracted, and the MP3 downloads back to you.

Real result: the audio track is extracted and the video discarded, so a large video becomes a small MP3 you can play anywhere — ideal for lectures, podcasts, music videos, and interviews.

How to Extract Audio from Video as MP3 Online

1. Upload Your Video File: Drag and drop or click "+ Add Files" to load any video — MP4, MOV, MKV, WebM, AVI, FLV, MTS, WMV, 3GP, TS, M2TS, MPEG, M4V, AVCHD, and ~30 more formats are accepted. Batch upload works; each file inherits the same settings.
2. Pick Your MP3 Quality: Open Advanced Options. The Quality Preset dropdown defaults to "Highest" — leave it for music videos, or drop to a custom bitrate for speech. Set Custom Bitrate (e.g., 128 kbps for podcasts, 192 kbps for music, 320 kbps for masters), choose Constant Bitrate (CBR) for streaming or Variable Bitrate (VBR) for smaller files, and pin Audio Sample Rate (Original, 44.1 kHz, 48 kHz) and Audio Channel (Original, mono, stereo).
3. Trim the Audio (Optional): Use the Trim section to drop intros, outros, or silent gaps before extraction so the MP3 only contains the part you want.
4. Convert and Download: Click Convert. Each file is processed on our servers and the MP3 is ready to download — no watermark, no sign-up, no waiting on a queue.

Why Extract Audio from Video?

Modern video files (MP4, MOV, MKV, WebM) carry their audio as AAC, Opus, or Vorbis tracks — not MP3 — so getting a clean MP3 means decoding the original stream and re-encoding it with the LAME MP3 encoder. MP3 stays popular because it plays on essentially every device, app, and car stereo built in the last 25 years, while AAC/Opus support is patchier on older hardware.

• Music and concert recordings — Rip the audio from a music video, live concert clip, or DJ set so it sits in your phone or MP3 player library. A 1080p music video at 8-10 Mbps shrinks from ~250 MB to a ~10 MB MP3 at 192 kbps per 4-minute track.
• Lecture and webinar archives — University recordings, Zoom exports, and conference talks are often delivered as MP4. Extract as 128 kbps mono MP3 to slim a 1-hour lecture from ~700 MB down to ~55 MB, then load it into a podcast app for offline listening.
• Podcast clips from interviews — Record an interview on Zoom, Google Meet, or OBS, then pull the audio out as MP3 for editing in Audacity, GarageBand, or Reaper. MP3 is the upload format Spotify and Apple Podcasts expect for episodes.
• Sound effects and dialogue for editing — Grab a single line of dialogue or a sound effect from a video clip to use in DaVinci Resolve, Premiere, or a game project. MP3 imports cleanly into every NLE timeline.
• Storage and bandwidth savings — A 2-hour 4K MP4 can sit around 4-8 GB; the audio alone as a 128 kbps MP3 is ~110 MB. Useful for audiobooks ripped from video, long sermon recordings, and audio-only language courses.
• Voice memos from screen recordings — Strip the audio from a screen capture so the narration can be edited, captioned, or fed into a transcription tool without the visual track.

Supported Input Video Formats

Container support also extends to AV1, HEVC, MJPEG, OGV, RM, RMVB, SWF, VOB, WTV, Xvid, DivX, and DV — 37 input formats total are accepted.

MP3 Bitrate Cheat Sheet for Extracted Audio

MP3 vs Other Audio Targets for Video Extraction

Frequently Asked Questions

How do I extract MP3 audio from a video?

Upload the video, choose MP3 as the output and a bitrate (192-256 kbps suits most content), then click Convert. The file is processed on our servers — the picture is dropped and only the soundtrack is saved, so you download a small MP3 of just the audio. Batch uploads work too.

Does extracting MP3 from a video lose quality compared to the source?

Yes, slightly — and it's unavoidable for MP3. Almost every modern video container holds the audio as AAC, Opus, Vorbis, or AC-3, so converting to MP3 requires decoding the original stream and re-encoding it with LAME. To minimise loss, set the MP3 bitrate higher than the source audio bitrate (a YouTube AAC track at 128 kbps should be extracted to 192 or 320 kbps MP3). If you want a true bit-perfect copy, extract to the source codec directly — for an MP4 that means extracting AAC to M4A instead, where the audio can be copied without re-encoding.

What MP3 bitrate should I use for a podcast or lecture I extracted from a video?

96 kbps mono is the standard for spoken-word podcasts and lectures — The Podcast Host explicitly recommends it for about 90% of voice content, and it cuts a 1-hour file to roughly 42 MB. Step up to 128 kbps stereo if there is music, jingles, or ambient sound you care about. 192 kbps and above are wasted on pure speech because the human voice sits in a narrow frequency band that LAME encodes transparently well below the transparency threshold.

Can I extract audio from a YouTube video downloaded as WebM?

Yes. WebM files store audio as Opus or Vorbis. The tool decodes the Opus/Vorbis stream and re-encodes it to MP3. Note that Opus is more efficient than MP3 at low bitrates, so a 96 kbps Opus track will sound better than a 96 kbps MP3 — pick at least 160 kbps MP3 to keep parity, or extract directly with WebM to MP3 which uses the same pipeline.

Why is my MP4 audio AAC and not MP3?

MP4 was standardised around AAC (Advanced Audio Coding) by the MPEG group as the successor to MP3, and almost every camera, phone, and streaming service writes AAC into its MP4 files. MP3 inside MP4 is technically allowed but extremely rare. That's why extracting to MP3 from an MP4 always involves re-encoding — there is no MP3 stream to copy out.

Can I trim the video before extracting audio?

Yes. Use the built-in Trim section in Advanced Options to set a start and end time so the output MP3 covers only that range — useful for grabbing one song from a 2-hour concert recording. For more precision after extraction, run the file through Trim MP3 or Audio Cutter.

Will the extracted MP3 keep the ID3 tags (title, artist, album)?

Generally no — video files rarely carry the rich ID3 metadata that music MP3s use. Title, artist, and album fields will usually come out blank. Add them after extraction in any audio player (iTunes, MusicBee, foobar2000) or with a tag editor like Mp3tag.

Can I extract audio from multiple videos at once?

Yes. Upload the whole batch and every file is processed with the same settings — same bitrate, same sample rate, same channel layout. Each video becomes one MP3 with the original filename plus the .mp3 extension.

What's the file size limit?

Conversion runs on our servers, so the practical ceiling depends on your upload size and connection speed rather than a fixed server cap. Multi-gigabyte 4K MP4s and long Blu-ray rips (MKV, M2TS) work; for very long sources, trim first or split with Video Cutter to keep the upload manageable.

Does the MP3 keep the audio in sync with the original video?

Yes. Audio extraction reads the same timestamps the video player uses, so a podcast clip extracted at the 12:34 mark of the source will start exactly there. The only time sync drifts is if the source video itself had A/V drift baked in, in which case the MP3 inherits the same offset.