Convert FLV to MP4
Free online FLV to MP4 converter.
Choose .flv files
or drag and drop — multiple files supported
Max 200 MB for video · 100 MB for other files
Why convert FLV to MP4?
Converting FLV to MP4 allows you to use your files in applications and platforms that require the MP4 format. The conversion is fast, free, and preserves the quality of your original file.
Common use cases
- Using FLV files in applications that require MP4
- Sharing files with people who need MP4 format
- Preparing files for platforms that accept MP4
How to convert FLV to MP4
- Click "Choose a .flv file" or drag and drop your FLV file into the upload area.
- Select your preferred quality level — high quality keeps the best fidelity, smaller file prioritizes file size.
- Your file uploads directly to our secure servers and conversion starts automatically.
- Once finished, click "Download" to save your converted MP4 file.
Tips for FLV to MP4 conversion
- High quality preserves the most detail from your original FLV file.
- The converted MP4 file can be used on any device or platform that supports the format.
- Files are automatically deleted from our servers within 24 hours for your privacy.
About FLV and MP4 formats
.FLV format
FLV (Flash Video) was the standard format for web video before HTML5. Still occasionally encountered in older video archives.
.MP4 format
MP4 (MPEG-4 Part 14) is the most widely used video container format. It stores video, audio, subtitles, and metadata in a single file. Compatible with virtually all devices, browsers, and media players.
Frequently asked questions
Is FLV to MP4 conversion free?
Yes, ConvertThis offers free FLV to MP4 conversion with no signup required. There are no watermarks, no daily limits, and no hidden fees.
How long does FLV to MP4 conversion take?
Most conversions complete in 2-15 seconds depending on file size. Larger files (over 50 MB) may take up to a minute.
Is my file safe during conversion?
Yes. Files are encrypted during upload using 256-bit SSL, processed on isolated servers, and automatically deleted within 24 hours. We never access, share, or store your files.
Convert other formats to MP4
Privacy and security
Your files are encrypted during upload using 256-bit SSL and are automatically deleted from our servers within 24 hours. We never share, sell, or access your files. All conversions happen on isolated, ephemeral servers.