FLV
Flash video
FLV was the format behind web video in the Flash era. Flash Player was retired at the end of 2020, so FLV files no longer play in any browser.
Opens in VLC and little else since Flash Player was retired in 2020
FLV converterFLV to OPUS converter, without the upload.
Pull the audio out of an FLV video as an OPUS. It is converted in your browser, so the file never leaves your device.
Drop FLV files here
or choose from your computer paste with Ctrl V
from Photos or Files
Ready · other file types work too0 bytes uploaded, ever
Convert to
- On your device · nothing is uploaded
- No account, no email
- Batch and ZIP download
- Free
- OPUS: sound only
How to convert FLV to OPUS
Add your FLV videos
Drop FLV files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.
OPUS is already chosen
Press Convert. Open Options first if you want to change the defaults. The work happens in this tab and can take a while for large files.
Download
Save the OPUS, or download everything as one ZIP if you converted several files.
Why ToAny
Private by construction
The FLV to OPUS converter is part of this page and runs inside your browser. Your videos are never sent to ToAny or to anyone else.
No upload, no queue
Nothing has to travel to a server and back, so work starts the moment you press Convert. How long it takes depends on your device and the size of the file.
Free, without an account
No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.
FLV to OPUS: what to expect
FLV no longer plays in any browser now that Flash is gone. Opus sounds better than MP3 or AAC at low bitrates. FLV is at home in nothing new; it survives in old downloads and stream recordings; OPUS is the usual choice for voice and music at low bitrates. The OPUS contains the soundtrack only; the picture is dropped.
The defaults suit most files. Under Options you can choose the bitrate and trim the start and end. This is demanding work for a browser: a long or high-resolution file can take several minutes, and your device does all of it, so keep the tab open.
This pair uses the compatibility engine, ffmpeg built for the browser, because FLV is not handled by the browser's built-in codecs. It is a one-off download of about 10 MB that the browser keeps, it is slower than the built-in codecs, and it takes files up to 1 GB. OPUS is written at 128 kbps unless you choose another bitrate.
FLV vs OPUS
OPUS
Opus audio
Opus is a modern open codec that sounds good at very low bitrates. WhatsApp voice notes, Discord and video calls use it. Standalone .opus files are less widely supported than the codec itself.
Opens in Current browsers, Android, VLC; many music apps and hardware players do not
OPUS converter| FLVFlash video | OPUSOpus audio | |
|---|---|---|
| Stands for | Flash Video | Opus |
| Type | Video container | Audio |
| Compression | Lossy | Lossy |
| Introduced | 2002, by Macromedia (later Adobe) | 2012, by the Internet Engineering Task Force (with Xiph.Org, Mozilla and Skype) |
| Opens in | VLC and little else since Flash Player was retired in 2020 | Current browsers, Android, VLC; many music apps and hardware players do not |
| Best for | Nothing new; it survives in old downloads and stream recordings | Voice and music at low bitrates |
| File extension | .flv | .opus |
Questions
Are my videos uploaded anywhere?
No. The FLV to OPUS conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.
Does converting FLV to OPUS reduce quality?
The soundtrack is re-encoded as OPUS. OPUS is lossy, but at a normal bitrate the difference is hard to hear. You can choose the bitrate under Options.
Can I convert several FLV files at once?
Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.
How do I convert FLV to OPUS on Windows, Mac, iPhone or Android?
The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the FLV file, press Convert and save the OPUS. There is nothing to install.
Is there a file size limit?
Yes. FLV to OPUS runs on the compatibility engine, which takes files up to 1 GB, and a long clip takes a while because it is slower than the browser's built-in codecs. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.