Video Thumbnail Generator

Extract perfect still frames from your videos—choose any moment, save as JPG or PNG, all processed directly in your browser.

Capture a Frame
Upload a video, scrub to the exact moment you want, and capture a high‑quality thumbnail. Processing happens entirely in your browser via WebAssembly.
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Why Extract Frames Locally?

Frame‑Perfect Accuracy

Slider lets you pick the exact millisecond. The captured frame matches the video pixel‑for‑pixel.

No Quality Loss

FFmpeg extracts the original video frame without re‑encoding, preserving the full quality of the source.

Total Privacy

Your video never leaves your device. The thumbnail is generated inside your browser and saved directly to your computer.

Works with Any Video

Supports MP4, MOV, AVI, MKV, WebM, and dozens of other formats. No file‑size limits.

How It Works
1

Upload

Drag & drop any video file (MP4, MOV, AVI, MKV, etc.).

2

Scrub to the Moment

Use the slider or play the video to find the exact frame you want to capture.

3

Choose Format

Pick between JPG (high quality, smaller) or PNG (lossless, larger).

4

Capture & Download

Click “Capture Frame”. The thumbnail appears instantly—download with one click.

Common Uses
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YouTube Thumbnails

Grab a compelling frame from your video to use as a custom thumbnail.

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Social Media Previews

Extract a frame for Instagram, Twitter, or Facebook post previews.

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Storyboarding

Capture key scenes to create visual storyboards or shot lists.

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Video Analysis

Freeze a specific moment for technical analysis or troubleshooting.

Recent Files

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Files are stored locally in your browser. Maximum 10 recent files.