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MP4 to FLV Converter

Convert your MP4 (.mp4) files to the streaming-optimized FLV (.flv) format. Our online tool provides fast conversions perfect for web streaming and low-bandwidth environments, all processed securely in your browser.

Drop your MP4 file here

or click to browse your files

Maximum file size: 100MB
(no limit for pro users)

How to Convert MP4 to FLV

We try to keep things simple. We have already optimised the settings for you.

  1. 1Upload your MP4 video using the button above.
  2. 2Click "Convert to FLV" to process the video.
  3. 3Download your new FLV file, click "Download FLV".

Benefits of FLV

  • Small file sizes for web streaming.
  • Good for low-bandwidth environments.
  • Supported by Adobe Flash Player.
  • Efficient for online video delivery.
  • Compatible with streaming platforms.

MP4 vs. FLV: Key Differences

FeatureMP4FLV
OriginMPEG standardAdobe Flash
File SizeModerateVery Small
Web StreamingGoodExcellent
Modern SupportUniversalLimited (legacy)

FAQ: MP4 to FLV Converter

Here are the most common questions about converting MP4 videos to FLV format.

Can I convert MP4 to FLV without losing quality?

FLV is optimized for small file sizes and streaming. While some quality reduction occurs to achieve smaller files, our converter balances quality and file size effectively.

Is FLV better than MP4 for streaming?

FLV is better for web streaming and small file sizes, while MP4 is more modern and widely supported. Choose FLV for legacy streaming needs and MP4 for general use.

What devices support FLV files?

FLV files require Adobe Flash Player or compatible software. Most modern browsers no longer support Flash, so FLV is mainly used for legacy systems and specific streaming applications.

Is this MP4 to FLV converter free?

Yes, the basic converter is completely free to use with no hidden costs. Free users can convert videos up to 100MB in size. Pro users enjoy unlimited file sizes and batch processing.

Do I need to install software to convert MP4 to FLV?

No installation is required. This tool runs directly in your browser, just upload your MP4 file, click convert, and download your FLV video.

Choose Your Plan

Start for free without an account, or upgrade to Pro for unlimited processing power.

Free

$0/month

Perfect for occasional use

No account required

Video files up to 100MB
Image files up to 10MB
One file at a time
Local processing (private)
Unlimited file sizes
Batch processing
All access

Pro

$19.99/month

For power users and professionals

Cancel anytime • Account required

Unlimited file sizes
Process multiple files in parallel
Local processing (private) - server fallback if required
Advanced codec support (like AV1)
Multi-threaded processing
Pro access to all converters and compressors
Priority support for new converter requests
Create Account & Upgrade
MP4 to FLV Converter Online - Free & Fast