FLV to MP3
FLV was the workhorse of Flash-based web video for years, and a lot of downloaded clips, old tutorials, and archived streams still live in this format. Now that Flash is dead, FLV files are increasingly awkward to play — but often the audio is what you're after anyway: a song, a podcast episode ripped from a Flash player, or narration from a tutorial. Converting FLV to MP3 extracts that audio into a file that works everywhere, freeing it from a container most modern software no longer supports well. FluidConvert reads the audio stream inside your FLV — usually AAC or MP3 — and re-encodes it to a standard MP3, dropping the video and leaving you with clean, portable sound. It's free, needs no account, and there's nothing to install.
Drop your file here, or browse
Accepts: video/x-flv, .flv · Max 1GB · always free
Your files are encrypted with TLS and automatically deleted after conversion.
Simply upload your .FLV file and we'll convert it to .MP3 format — fast, free, and secure.
Fast & Free
Convert files up to 1GB completely free. No account, no limits.
Secure
Files are encrypted and automatically deleted after conversion.
High Quality
Industry-leading conversion with no quality loss.
How to Convert FLV to MP3
Upload Your File
Click the upload area above or drag and drop your .FLV file. We support files up to 1GB, completely free.
Choose Output Format
Select .MP3 as your target format. Adjust any conversion settings if needed.
Download Your File
Click Convert Now and wait a few seconds. Once complete, download your converted file instantly.
About FLV to MP3
Last updated: September 2026
What is FLV?
FLV (Flash Video) is a container format developed by Macromedia, later Adobe, to deliver video through the Flash Player over the web. For much of the 2000s and early 2010s it was the dominant format for streaming sites and embedded players, holding video encoded with Sorenson Spark, VP6, or H.264, and audio in MP3 or AAC. Because it was tuned for progressive web streaming, FLV files are compact and load quickly. With Flash officially discontinued in 2020, the format is now legacy — many current media players and editors either can't open FLV or need extra plugins, which is why converting it is often necessary.
Why convert to MP3?
If you only need the sound from an FLV, MP3 is the practical destination. It liberates the audio from a dying container into a format that plays on every device and app without plugins. This is ideal for keeping a song, podcast, or spoken lecture that only exists as an FLV, or for pulling audio from archived Flash tutorials so you can listen without launching special software. Dropping the video also cuts the file size significantly. Once it's an MP3 you can tag it, add it to a music library, load it onto a phone, or edit it in any audio tool.
What to expect from the conversion
This is a lossy re-encode. FLV audio is already compressed — commonly AAC or MP3 at web-streaming bitrates — so converting to MP3 preserves that quality at best and can't add clarity the original stream never had. Transcoding one lossy format to another (AAC to MP3) introduces a small additional quality loss, so pick a comfortable bitrate like 192–256 kbps rather than trying to 'upgrade' with 320 kbps on a modest source. The video track is discarded. For voice-heavy tutorials, a lower bitrate is fine; for music, aim higher to retain as much of the original as possible.
How FluidConvert handles it
FluidConvert processes FLV files on secure servers that separate the audio stream from the Flash video wrapper and re-encode it to MP3 within seconds. All uploads are encrypted in transit and deleted automatically after conversion — your files are never stored or examined. The service is free, requires no account, and runs entirely in your browser with no plugins.
Common reasons to convert FLV to MP3
- Recovering the audio from an old Flash tutorial saved as FLV now that Flash no longer runs
- Extracting a song from an archived FLV music clip to add to a modern playlist
- Pulling a podcast episode out of an FLV downloaded from a legacy Flash player
- Saving lecture audio from an FLV recording so it plays on a phone without plugins
- Reducing an archive of bulky FLV video files to compact MP3s when only the sound matters
Frequently Asked Questions
Why can't I just play my FLV files anymore?
FLV was built for Adobe Flash Player, which was discontinued in 2020. Many modern media players dropped native FLV support along with Flash, so the files that once played fine in a browser now often won't open. Converting to MP3 (for audio) or MP4 (for video) moves your content into current formats that today's software supports without any legacy plugins.
Does converting keep the video from the FLV?
No. MP3 holds audio only, so the video portion of your FLV is discarded during conversion. You're left with just the sound in a small, portable file. If you want to preserve the video as well, convert the FLV to a modern video container like MP4 instead of extracting the audio to MP3.
Is the audio quality the same as the original FLV?
It's as close as a re-encode allows, but not better. FLV audio is already compressed, so converting to MP3 preserves the existing quality and, when the source is AAC, introduces a minor loss from transcoding between two lossy formats. It won't restore anything the streamed original lacked. Choosing 192–256 kbps keeps the difference from the source practically inaudible.
Can I pull a podcast or song out of an old FLV I downloaded?
Yes. If you have an FLV of a talk, song, or podcast, the conversion extracts its audio into an MP3 you can add to any library or player. The result reflects the FLV's original audio bitrate, so a low-quality web stream stays low quality — the format change just makes it playable and portable, not higher fidelity.
Will metadata like title and artist carry over?
FLV files rarely store rich audio metadata the way music files do, so titles and artist names usually don't transfer automatically. After converting to MP3 you can add ID3 tags yourself in any music app or tag editor to label the track. The conversion focuses on getting the audio stream out cleanly and playable.