Video Screenshot Tool: Capture Video Frames

Capture a single frame or mark several moments and export them as a ZIP. Preview PNG, JPEG, or WebP images at the decoded video dimensions. Your video stays in your browser.

PNG Export Short-Step Controls Local Processing 100% Free

Drop a video here or click to upload

Browser-playable video · MP4 (H.264/AAC) recommended · up to 500 MB

Original sample animation of a balloon above mountains

No video handy? Try our original 8-second animation (60 KB). Loads only when you click.

Three marked moments, three full-size screenshots

A reproducible example from the original ToolKnit balloon animation: the browser decodes an 8-second, 1280 × 720 video. Mark 1, 4 and 7 seconds, select PNG, then export the three selected moments.

Original ToolKnit sample screenshot requested at 0:01.000
Marked time: 0:01.000
01-screenshot-0-01-000.png
Original ToolKnit sample screenshot requested at 0:04.000
Marked time: 0:04.000
02-screenshot-0-04-000.png
Original ToolKnit sample screenshot requested at 0:07.000
Marked time: 0:07.000
03-screenshot-0-07-000.png
Verified files from the example ZIP
Marked timePNG dimensionsFile bytes
0:01.0001280 × 720177,704
0:04.0001280 × 720181,099
0:07.0001280 × 720183,365

The ZIP contains three numbered PNG files in timestamp order. Every full-size image was reopened and its dimensions checked; the previews above are smaller WebP copies for this page. The archive is 542,574 bytes.

These are synthetic practice scenes, not customer footage. Times are requested seek positions, not a guarantee of frame-number-accurate decoding. The tool exports manually marked moments; it does not automatically extract every frame or one frame per second. Encoded sizes can vary between browser versions.

For a cover image, crop the exported screenshot, then compress the copy for upload. Keep the full-size PNG when you need the original decoded pixel dimensions.

How It Works

Three simple steps

1

Upload your video

Choose a browser-playable video up to 500 MB. H.264/AAC MP4 is recommended.

2

Choose a moment

Scrub the timeline or use short steps to refine the position. Precision depends on browser decoding and the video frame rate.

3

Download screenshot

Download a lossless PNG at the dimensions decoded by your browser, or choose JPEG/WebP for a smaller file.

Need help capturing a frame? Read the complete guide

Learn how to use timeline and short-step controls to capture a video screenshot in your browser.

Read Guide

Video Screenshot FAQ

Answers about video compatibility, image quality, marked moments and local export.

Batch export walkthrough Troubleshooting guide

Why use ToolKnit Video Screenshot?

Local Video Processing

This tool processes video files locally in your browser and does not upload them.

Timeline and Short Steps

Use the timeline and short-step buttons to choose a moment. Precision depends on browser decoding and the video frame rate.

Lossless PNG Export

PNG exports are lossless and use the dimensions decoded by your browser from the video.

Keyboard Shortcuts

Space to play/pause, arrow keys for short steps, Ctrl+S to capture. Fast workflow without touching the mouse.

Pro Tips

  • ●Short-step controls (arrow keys) help refine the position after you pause.
  • ●Choose PNG for lossless quality, or JPEG/WebP for smaller file sizes.
  • ●The captured image reflects the frame decoded by your browser. Source frame rate and browser decoding affect the available precision.
  • ●Pair with the Image Compressor to reduce screenshot file size after capture.

Capture a useful still from your video

For example, a screenshot from a 320 × 180 video stays 320 × 180 pixels. This avoids capturing the player controls or the surrounding browser window. A larger screenshot cannot restore detail missing from the original video.

Select a local clip, pause near the moment you need, refine it with the timeline and short-step buttons, then choose PNG, JPEG, or WebP. PNG keeps the captured pixels lossless; JPEG and WebP use lossy encoding here.

Files must be playable by your browser and no larger than 500 MB. H.264/AAC MP4 is a good starting point. If you see a blank player or a decode error, try a compatible MP4 export. Capture a single still, or mark up to 30 moments and export the selected frames as a ZIP. Automatic every-frame extraction is not supported.