ClipForge — Video Converter + Trimmer (stall-safe)

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Drop a video here or choose a browser-decodable video such as MP4, WebM, OGV, MOV/M4V, and more.

00:00.000

OUT

00:00.000

Loop In → Out

Trim

Start (seconds)

End (seconds)

Clip: — Frames: —

Output

Optional video conversion overrides

Leave the video overrides off for a simple converter/trimmer. The resolution and FPS values remain editable because PNG sequence export always uses them.

Apply resolution to video exportOff = preserve the source dimensions during video conversion.

Resolution (also used by PNG ZIP)

Width

Height

Keep source aspect ratio when editing width/height

Apply FPS to video exportOff = preserve the source frame cadence. PNG sequence export still uses the FPS value below.

FPS (always used by PNG ZIP)

Source

No file—

—resolution

—duration

—media type

Detecting…video / audio codec

Video converter

Conversion engine

Container / codec

Set a specific video bitrateOff = let the selected encoder choose its normal bitrate/quality behavior.

Video bitrate (Mbps)

Include audio when present in the source

Auto mode now tries the browser-native WebCodecs/Mediabunny path first for normal conversions and trims, then falls back to FFmpeg.wasm only when needed. This avoids known FFmpeg.wasm stalls while retaining broad software-codec compatibility. AV1, HEVC/H.265, ProRes, AC-3/E-AC-3 and AAC compatibility extensions are loaded only when needed. Every long-running export phase has a stall watchdog so the UI cannot remain indefinitely at 90–100%. Everything runs locally in your browser; media is never uploaded.

Export

Choose a video to begin.

Conversion details