MP4 to FLV
Convert MP4 files to Flash Video (FLV) for legacy websites and e-learning systems - 100 % in your browser.
or drag and drop your file
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How to convert MP4 to FLV
Create an FLV file from MP4 in three quick steps
1. Upload your MP4
Click “Upload” or drag a video onto the page. HD and long-form files are accepted and processed securely.
2. Select FLV output
FLV is preset for Flash/RTMP delivery. Optionally tweak resolution or bitrate for faster streaming.
3. Download the FLV
Press “Convert”. In seconds your new .flv file is ready for legacy players, LMS or low-bandwidth hosts.
Optimized for legacy streaming
Generate small FLV files that load fast over RTMP and play on Flash-based sites still used in schools, kiosks or intranets.
One dashboard, many codecs
Besides FLV, convert to WebM, MOV, AVI, WAV, MP3 and more - no installs, limits or watermarks.
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FAQ
Why convert MP4 to FLV?
FLV is still required by some Flash players, LMS modules and RTMP streaming servers where MP4 containers are unsupported.
Does FLV support H.264 video?
Yes. Our converter wraps your H.264 stream inside an FLV container, preserving compression efficiency and quality.
Will modern browsers play FLV files?
Most modern browsers dropped native Flash support. FLV is mainly for legacy systems; for public sites use MP4 or WebM instead.
Can I set a custom bitrate or frame size?
Absolutely. Click “Advanced settings” after upload to adjust resolution, bitrate or audio parameters before exporting.
Is there an upload size limit?
Videos up to 2 GB are accepted. Larger files convert more slowly but follow the same secure workflow.
Are my files secure during conversion?
Yes. Uploads use HTTPS encryption and are auto-deleted within minutes of conversion, ensuring full privacy.