FLV to MP4 converter
Upload a FLV, get a polished MP4 back in seconds. StandardsPDF handles the conversion in your browser so your files stay yours.
Convert FLV to MP4
Drop your files to try StandardsPDF. This tool is available in the full workspace.
Keeps the video stream and audio track in sync
Lets you pick a quality preset to balance size and clarity
Files auto-deleted from our servers within 60 minutes
Works in any modern browser – desktop, tablet or phone
How it works
Convert FLV to MP4 in 3 steps
Select the FLV you want to convert
Start the conversion – most finish in seconds
Grab your new MP4, ready to use
Private by default
Files are encrypted in transit and deleted within 60 minutes.
Fast
Most jobs finish in under 10 seconds. No queueing.
No signup on free tier
5 documents per day, no credit card required.
FAQ
Frequently asked questions
How do I convert FLV to MP4?+
Upload your FLV file (or drag it onto the box above), wait a few seconds while StandardsPDF converts it in your browser, then download the MP4. There is nothing to install and no account required.
Is converting FLV to MP4 free?+
Yes. FLV to MP4 conversion is free on the StandardsPDF free tier – no watermark, no signup, and no credit card. A Pro tier lifts the file-size and daily limits if you need more.
Will the MP4 keep the quality of my FLV?+
StandardsPDF aims for the highest fidelity the MP4 format allows, so your video comes through looking as close to the original as possible. Some format-specific details may adapt where MP4 works differently to FLV.
Will the audio from my FLV stay in sync in the MP4?+
Yes – when converting FLV to MP4 the audio track is muxed back with the video so playback stays perfectly in sync.
What is the maximum FLV file size I can convert to MP4?+
Up to 100 MB per FLV on the free tier and 2 GB on Pro. If your FLV is larger, split it first or upgrade for the higher limit.
Can I convert several FLV files to MP4 at once?+
Yes – add multiple FLV files and StandardsPDF processes them as a batch, returning a MP4 for each.
Can I convert FLV to MP4 on my phone?+
Yes – the FLV to MP4 converter is fully responsive and works in Safari, Chrome and other modern browsers on iOS, Android and iPadOS.
How long does a FLV to MP4 conversion take?+
Most FLV files convert to MP4 in a few seconds. Larger or higher-resolution files take a little longer, but there is never a queue on the free tier.