Is it free to convert FLV to MP4?

Yes, VideoConvert offers free FLV to MP4 conversion. The free tier supports MP4 output at up to 720p. Pro users get all formats, 4K resolution, batch conversion, and no watermark for a one-time $29 payment.

Does converting FLV to MP4 lose quality?

VideoConvert uses FFmpeg with configurable quality presets. The High preset (CRF 18) produces output that is visually indistinguishable from the source. You control the quality-to-size tradeoff with four presets: High, Medium, Low, and Draft.

Do I need to upload my video to a server?

No. VideoConvert processes everything locally on your computer. Your video files never leave your device, ensuring complete privacy and eliminating upload wait times.

How long does FLV to MP4 conversion take?

Conversion speed depends on file size, resolution, and your computer's hardware. A typical 1080p video converts in seconds to a few minutes. Local processing is often faster than cloud services because there is no upload or download step.

Format Conversion

Convert FLV to MP4

Convert legacy Flash Video (FLV) files to modern MP4 format. FLV is no longer supported by browsers since Adobe Flash was discontinued, but your videos can live on in MP4.

100% Local Processing

No File Upload Required

FLV

Flash Video

MP4

MPEG-4 (H.264)

Why Convert FLV to MP4?

Rescue content from the deprecated Flash format
Modern codec with vastly better compression
Plays natively in every browser and device
Preserves video quality during conversion
Dramatically smaller file sizes than FLV

Common Use Cases

Recovering old Flash video archives
Migrating legacy educational content
Preserving classic web video content
Updating media libraries for modern platforms

How to Convert FLV to MP4

Open VideoConvert

Launch the app and drag your FLV file into the upload area.

Select MP4 Format

Choose MP4 as your output format from the format selector.

Convert & Download

Click Convert and your file is ready. No cloud upload needed.

Frequently Asked Questions

Video Quality Presets Explained

Why Local Video Processing Matters