video station
Create a Video Thumbnail Grid Online
Create one JPG contact sheet containing a grid of video frames. Review a recording at a glance without exporting each preview as a separate image.
Active conversion station
Thumbnail Grid
Generate thumbnail grid
How to generate a thumbnail grid
Prepare the source
Select a video to summarize visually.
Review the settings
Choose the number of rows and columns and the image width.
Check the result
Start Conversion and download the JPG contact sheet.
Supported formats and limitations
Input: MP4, AVI, MOV, MKV, WEBM. Output: JPG. Sampling is automatic, not scene detection. The current endpoint returns one JPG, not a ZIP of individual thumbnails.
Processing runs on the server after you select Start Conversion. The interface accepts files up to 500 MB; service and connection limits can be lower. No installation or account is required. Read our file processing privacy policy.
Why Use ConvertFast's Thumbnail Grid?
- Arrange sampled video frames in rows and columns.
- Create a single image for a visual overview.
Frequently Asked Questions
Can I download each thumbnail separately?
This workflow returns one combined JPG grid. Use the single thumbnail extractor to save a particular frame.
Is this different from Video Storyboard?
Both tools currently use the same contact-sheet processing function. Existing URLs are kept available; neither provides automatic scene selection.
Ready? It's Free.
No account required. Input rules appear before you upload.
Open Thumbnail Grid Tool