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Make a thumbnail grid (contact sheet) from a video

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A video contact sheet is a single PNG grid of evenly spaced thumbnails from a video. It gives a quick visual summary of the whole clip—useful for previewing, shot selection, archiving, or sending samples. Videozify generates the contact sheet in your browser using FFmpeg, so nothing is uploaded. Choose the tile layout and thumbnail size to suit your needs. For every single frame, use the extract frames tool instead.

How to make a video contact sheet

  1. Drop your video file onto the box above.
  2. Choose the number of rows and columns (for example, 4x4 or 5x4).
  3. Pick a thumbnail width: 240, 320, or 480 pixels.
  4. Press Make contact sheet.
  5. Download the PNG grid of thumbnails.

How video contact sheets work

Video contact sheets are made by extracting still frames at regular intervals across the whole video, then arranging them into a grid. Videozify uses FFmpeg's fps, scale, and tile filters to do this in your browser. The result is a single PNG image with dark padding, showing an overview from start to finish.

This tool is ideal for quickly previewing footage, picking the best moment, or sending a summary to a client. Editors often use contact sheets to mark up shot choices or to archive what’s in a batch of files. It’s faster and easier than scrubbing through the video or extracting every frame.

The process is local: your video never leaves your device. Everything happens in your browser using WebAssembly. Most jobs take less than a minute for typical files (under 1 GB, under 90 minutes).

There are some limits. For very long videos or extremely high resolutions, browser memory can be a bottleneck. If you need individual frames, use the extract frames tool. For making a grid, this tool is fast, simple, and handles most common video formats (MP4, MOV, MKV, etc).

Everything runs on your device and nothing is uploaded. For individual frames, see Extract frames.

At a glance

PropertyVideozify
Input formatsMP4, MOV, MKV, AVI, WebM, more
OutputOne PNG contact sheet
Tile layouts3x3, 4x3, 4x4, 5x4, 6x5
Thumbnail width240, 320, 480 px
ProcessingIn your browser (no upload)
Max video lengthAbout 2 hours (typical browser)

A video contact sheet is a single image showing a grid of thumbnails from across a video—useful for previewing, archiving, editing, or client review.

Settings explained

Tile layout (rows x columns): Choose how many thumbnails you want in your grid. A 4x4 grid (16 tiles) works for most short clips. For longer videos, 5x4 or 6x5 gives more coverage. More tiles mean smaller individual images, but better time sampling.

Thumbnail width: Pick 240, 320, or 480 pixels. 240 px is compact for sharing or archiving. 320 px is a good balance for most uses. 480 px produces a large, detailed grid for print or close review. The overall PNG size grows with more and larger tiles.

Dark padding: The tool adds dark padding around tiles to keep the grid neat and readable, especially when video frames don’t match the target aspect ratio. This keeps the sheet looking tidy and professional.

Tips, alternatives, and practical uses

Contact sheets are a staple for editors, archivists, and anyone reviewing lots of footage. They help you spot mistakes, find highlights, or show clients what’s in a file without sending the whole video. For archiving, save the PNG with your footage for easy reference later.

If you want to mark up a contact sheet (draw, label, or highlight frames), open the PNG in any image editor after export. For client review, add notes before sending. For internal use, include contact sheets with file deliveries or batch archives.

Some built-in tools can make simple contact sheets, but with trade-offs. VLC can save a grid of thumbnails (Video > Take Snapshot > Scene Filter), but setup is technical and limited to 3x3. Windows Photos, macOS QuickTime, iMovie, and mobile galleries don’t offer grid sheet export, only single snapshots. Clipchamp, CapCut, and Audacity don’t support this feature out of the box.

For frame-accurate selection or unusual layouts, use the extract frames tool to get all images, then arrange them manually in Photoshop or GIMP. But for 99% of needs, the contact sheet maker is much faster and simpler.

Frequently asked questions

What is a video contact sheet?

A contact sheet is a single image made of thumbnails taken at intervals from a video. It gives a quick visual summary of the whole clip—useful for previewing, archiving, or sharing with clients.

Can I make contact sheets from long videos?

Yes, but browser memory is the limit. Videos up to about 2 hours (1080p, H.264, under 1 GB) usually work. For longer or very high-res files, try trimming first.

Are my files uploaded?

No. Videozify runs entirely in your browser. Your video never leaves your device.

What file formats are supported?

Most common video formats: MP4, MOV, MKV, AVI, WebM, and more. If a file won't open, try re-encoding or converting it to MP4 first.

Can I extract every frame instead?

For every single frame as separate images, use the extract frames tool. The contact sheet tool only makes one grid image from evenly spaced moments.

How do I pick the right grid size?

For short clips, 3x3 or 4x4 grids work well. For longer videos, use more tiles (for example, 5x4 or 6x5) to capture more moments. More tiles mean smaller thumbnails.

Can I use the result for print or PDF?

Yes. Use 480 px thumbnails and a larger grid for best print quality. The output is a standard PNG, suitable for documents or presentations.

Is there a watermark?

No. The output image does not have any branding or watermark.

How big is the final PNG?

Depends on grid size and thumbnail width. For example, a 4x4 grid at 320 px wide is usually 300–600 KB. Larger grids and higher resolutions increase file size.

Will this work on my phone or tablet?

Yes, for shorter videos and smaller grids. For longer or high-res videos, a desktop browser (Chrome, Edge, Firefox, or Safari) works best.

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