Does this keep the video, or just the audio?

Only the audio is kept — the video stream is discarded and the soundtrack is saved as a standalone MP3 file, so an unplayable old FLV becomes a small clip you can actually listen to.

Where do FLV files usually come from?

FLV is Flash Video, the format that carried almost all web video before HTML5: clips saved from sites in the pre-2015 era, downloads from early YouTube and Vimeo, recordings of RTMP live streams, and lessons captured with old Flash-based screen recorders. Most people meet FLV as something already sitting in an old downloads folder.

Why bother extracting audio from a dead format like FLV?

Flash is gone — browsers dropped the Flash Player at the end of 2020 — so an FLV often will not open in anything you have installed. If the recording matters — a lecture, an interview or music you cannot find elsewhere — pulling the audio out to MP3 is the simplest way to keep it listenable for good.

Why won't my FLV file play anymore?

FLV was built around Adobe Flash, and since Flash Player was discontinued in December 2020 no modern browser or default media player supports it. Converting the soundtrack to MP3 sidesteps that entirely — the audio then plays on any phone, computer or car stereo with nothing extra to install.

Will the audio quality drop when I extract it?

The audio inside an FLV is usually already MP3 or AAC, and it is re-encoded once to a clean MP3 — a single small lossy step that is inaudible for normal listening. The MP3 can only be as good as the track already stored in the file, but it will be far more compatible.

Can I extract audio from several FLV files at once?

Yes. Add all your FLV files together and click Convert — each one's audio is extracted as a separate MP3, so a whole archive of old Flash clips converts in one pass with no limit on file count.

Convert FLV to MP3 Online

Pull the soundtrack out of an old Flash FLV video and keep it as a compact, playable MP3.

or drag & drop them here · images, video, audio and documents · up to 2 GB

How to convert FLV to MP3

Click "Choose Files" and select your FLV file, or drag & drop it onto the page.
Make sure MP3 is selected as the target format.
Click "Convert" and wait a few seconds.
Download your new MP3 file.

Why Converters.live?

Free and unlimited — convert as many FLV tracks to MP3 as you need.
Files up to 2 GB, with bitrate tuned to keep MP3 sounding as close as possible to the original FLV.
Your audio files are deleted from the server immediately after conversion — nothing is stored.

Frequently asked questions

Does this keep the video, or just the audio?: Only the audio is kept — the video stream is discarded and the soundtrack is saved as a standalone MP3 file, so an unplayable old FLV becomes a small clip you can actually listen to.
Where do FLV files usually come from?: FLV is Flash Video, the format that carried almost all web video before HTML5: clips saved from sites in the pre-2015 era, downloads from early YouTube and Vimeo, recordings of RTMP live streams, and lessons captured with old Flash-based screen recorders. Most people meet FLV as something already sitting in an old downloads folder.
Why bother extracting audio from a dead format like FLV?: Flash is gone — browsers dropped the Flash Player at the end of 2020 — so an FLV often will not open in anything you have installed. If the recording matters — a lecture, an interview or music you cannot find elsewhere — pulling the audio out to MP3 is the simplest way to keep it listenable for good.
Why won't my FLV file play anymore?: FLV was built around Adobe Flash, and since Flash Player was discontinued in December 2020 no modern browser or default media player supports it. Converting the soundtrack to MP3 sidesteps that entirely — the audio then plays on any phone, computer or car stereo with nothing extra to install.
Will the audio quality drop when I extract it?: The audio inside an FLV is usually already MP3 or AAC, and it is re-encoded once to a clean MP3 — a single small lossy step that is inaudible for normal listening. The MP3 can only be as good as the track already stored in the file, but it will be far more compatible.
Can I extract audio from several FLV files at once?: Yes. Add all your FLV files together and click Convert — each one's audio is extracted as a separate MP3, so a whole archive of old Flash clips converts in one pass with no limit on file count.

About FLV and MP3

Key things to know before you convert FLV to MP3:

FLV

FLV is the Adobe Flash video format. Flash is dead, and so is FLV — convert these files to MP4 to keep them playable.

MP3

MP3 is the most compatible audio format in existence: every player of the last 25 years handles it. Less efficient than modern codecs, but compatibility usually wins.

Related conversions

FLV→MP4 MP4→MP3 WAV→MP3 M4A→MP3 FLAC→MP3 OGG→MP3 AAC→MP3 WMA→MP3