How many thumbnails can I extract?
You can extract between 1 and 50 thumbnails from any video. They are evenly spaced across the video duration. Choose from presets (4, 8, 12, 16) or enter a custom number.
What formats are supported for the thumbnails?
You can export thumbnails as JPEG, PNG, or WebP. JPEG and WebP support adjustable quality settings for the perfect balance between file size and image quality.
Is my video uploaded to a server?
No. All processing happens directly in your browser using WebCodecs. Your video never leaves your device — it's 100% private and secure.
What video formats can I upload?
MP4, MOV, WebM, and MKV are all supported. The tool reads the video locally in your browser and extracts frames at evenly spaced intervals.
Can I download all thumbnails at once?
Yes! Click the "Download All (ZIP)" button to get all extracted thumbnails bundled in a single ZIP file. You can also download individual thumbnails by hovering over them and clicking the download icon.