Trim FLV

How to Trim FLV Videos

1. Upload your FLV file — Click "+ Add Files" or drag and drop your Flash Video file.
2. Set trim points — Under "Trim," select "Time Range" and enter a start time and duration.
3. Adjust compression (optional) — Under "File Compression," select "Quality Preset" (Highest to Lowest), "Target file size (%)", "Specific file size," "Constant Bitrate," "Variable Bitrate," "Constant Quality" (CRF), or "Constraint Quality."
4. Adjust resolution (optional) — Under "Video resolution," keep original, pick a preset (1080p, 720p, etc.), or enter exact width/height.
5. Trim and download — Click "Trim" and download your trimmed FLV file.

Why Trim FLV Files?

FLV (Flash Video) was the dominant web video format during the Flash era (2005–2015), used by early YouTube, Dailymotion, and countless streaming sites. While Flash is discontinued, millions of FLV files exist in video archives, downloaded web content, and legacy CMS systems. Trimming lets you extract specific clips from these legacy recordings without converting to another format.

For modern use, consider converting trimmed clips to MP4 for universal playback. Keep FLV only when maintaining the original format for legacy systems.

FLV Trimming Use Cases

Source	Use Case	Approach
Downloaded web video	Extract highlight	Start time + duration
Legacy CMS content	Shorten for re-upload	Trim + compress
Screen recording archive	Pull specific segment	Exact timestamps
Flash presentation	Extract video portion	Trim to content

Frequently Asked Questions

Is FLV still used?

FLV is a legacy format — Flash Player was discontinued in 2020. However, FLV files remain common in video archives and legacy systems. VLC plays FLV on modern systems.

Can I compress while trimming?

Yes. Under "File Compression," choose any method. Since FLV files often use older, less efficient codecs, compression can significantly reduce file size.

Should I trim as FLV or convert to MP4?

For modern use, FLV to MP4 is recommended. Keep FLV only for legacy Flash-based systems or when preserving the original format matters.

Can I also resize while trimming?

Yes. Under "Video resolution," change resolution — useful for creating smaller clips from old web video content.

What plays FLV files?

VLC, PotPlayer, MPC-HC, and ffplay. No modern browser plays FLV natively since Flash was discontinued.