Pocket Video Trimmer
A whole video trimmer in one HTML file. Download it, double-click it, drop in a video. No install, no upload, no internet.
Inputs
Anything the browser can play:
| Works | Usually won't |
|---|---|
| MP4 / H.264 · MOV · WebM · most MKV | AVI · exotic codecs |
Any resolution or aspect ratio, portrait or landscape.
Quick start
- Download
Nugget Video Trimmer vX.X.html - Double-click to open it in Chrome or Edge
- Drag a video onto the page
Everything runs inside the browser tab. Nothing is uploaded — the file makes zero network requests.
What it does
Trim — scrub a filmstrip timeline, drag in/out handles, step frame by frame, or type exact times. A slim bar under the timeline slides the whole selection without changing its length.
Multi-clip — queue several cuts from one video and export them all at once into a folder you choose.
Crop — draggable box with ratio presets (16:9, 9:16, 1:1, 4:5, 2:3, 21:9, custom…).
Resize & frame rate — percentage presets or exact pixels; any fps.
Compression — one slider, smaller file ↔ bigger file, with a live size estimate.
Pictures — single-frame snapshot, animated GIF, and two kinds of contact sheet:
- Auto storyboard — N×N frames spread evenly across the selection
- Manual storyboard — pick the exact frames yourself, with thumbnails
Outputs
| Format | |
|---|---|
| Video | MP4 (H.264 + AAC), WebM fallback |
| Pictures | PNG |
| Animation | GIF |
Files are named from the source, timestamp and settings, e.g. holiday_1m37s_1280x720_30fps.mp4.
Good to know
- Export runs in real time — a 30-second clip takes about 30 seconds. Keep the tab on screen; it pauses if you switch away and resumes when you return.
- It re-encodes, so output isn't bit-identical to the source. The compression slider controls that trade-off.
- GIF is 256 colours and grows quickly — smaller width and 10–15 fps work best.
- Manual storyboards hold up to 25 frames; grids go to 10 × 10.
Requirements
Chrome or Edge. Firefox mostly works but falls back to WebM. No server, no dependencies, no build step.
by C_Nugget