Video Thumbnail Generator
Generate thumbnails from videos. Extract any frame at specific timestamp. Download as PNG or JPG. Free online video thumbnail tool.
Free video thumbnail generator. Extract any frame or auto-generate 6 thumbnails. Download as PNG/JPG or ZIP. 100% browser-based.
- ✓ Navigate timeline to select any frame
- ✓ Auto-generate 6 evenly-spaced thumbnails
- ✓ Export as PNG or JPG format
- ✓ Adjustable quality settings
- ✓ Download individually or all as ZIP
How to Generate Video Thumbnails
- 1 Upload a video file (MP4, WebM, MOV)
- 2 Use timeline slider to navigate to desired frame
- 3 Click Extract Frame for single thumbnail
- 4 Or use Auto Generate for 6 thumbnails
- 5 Select output format and quality
- 6 Download thumbnails individually or as ZIP
Frequently Asked Questions
How does browser-based video processing work? ▼
MagicKit uses FFmpeg compiled to WebAssembly (WASM). This brings professional video editing capabilities directly to your browser.
What video formats are supported? ▼
MP4, WebM, MOV, and AVI. Some tools also support MKV and other formats.
Is there a file size limit for videos? ▼
We recommend files under 500MB for optimal browser performance. Larger files will work but may be slower.
Why does video processing take time? ▼
Video encoding is computationally intensive. Processing happens on your device, so speed depends on your computer's capabilities.
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Last updated: January 15, 2026 · v2.1