FLV vs MP4

FLV vs MP4: Obsolete Flash format vs modern standard. MP4 has completely replaced FLV for all practical purposes.

Quick Compress
Choose a file, pick how small it should be, and compress locally.
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Percentage is applied to the original file size.

Detailed Comparison

CategoryFLVMP4Winner
CompatibilityFlash Player only (discontinued)Universal - all devicesMP4
File SizeInefficientEfficient with H.264/H.265MP4
QualityLimited by old codecsExcellentMP4
Modern SupportDeprecated - Flash is deadCurrent standardMP4
StreamingLegacy streamingModern HLS/DASH streamingMP4

Head-to-Head Comparison

  • Compatibility: FLV - Flash Player only (discontinued) | MP4 - Universal - all devices
  • File Size: FLV - Inefficient | MP4 - Efficient with H.264/H.265
  • Quality: FLV - Limited by old codecs | MP4 - Excellent
  • Modern Support: FLV - Deprecated - Flash is dead | MP4 - Current standard
  • Streaming: FLV - Legacy streaming | MP4 - Modern HLS/DASH streaming

Which Should You Choose?

  • Convert all FLV files to MP4
  • Flash is dead - MP4 is the replacement
  • No modern use case for FLV
  • MP4 for all video needs

The Verdict

MP4 is generally better for most users, but both have their place depending on your needs.

Frequently Asked Questions

Which is better: FLV or MP4?

MP4 is generally better for most users, but FLV has advantages in specific scenarios. Convert all FLV files to MP4.

What's the main difference between FLV and MP4?

The key differences are: Compatibility - FLV: Flash Player only (discontinued), MP4: Universal - all devices; File Size - FLV: Inefficient, MP4: Efficient with H.264/H.265.

Can I convert between FLV and MP4?

Yes! Upload your video in either format, select the output format you want, and compress. The conversion happens locally in your browser with no uploads.

Which should I use for compatibility?

For compatibility: MP4 is better. Universal - all devices.

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