Free tools · Extract
Grab a thumbnail
Grab a still frame from a video at any timestamp and save it as a JPG or PNG — a poster image or thumbnail in one click. Browser-only.
Runs entirely in your browser. Your file is never uploaded — no watermark, no account.
How to use Grab a thumbnail
- 1
Choose your file. Drop a file into the tool, or click to select one. It stays on your device — nothing is uploaded.
- 2
Pick your settings. Adjust the options if you like, then press Run. The first run downloads a ~32 MB engine once; after that it's instant.
- 3
Download. Everything is processed right in your browser — download the finished file instantly, with no watermark.
Frequently asked questions
- Is Grab a thumbnail free? Is there a watermark?
- Yes — Grab a thumbnail is completely free, with no sign-up, no watermark, and no limit on how many files you process.
- Do my files get uploaded to a server?
- No. Grab a thumbnail runs entirely in your browser with WebAssembly, so your MP4, MOV, WebM, MKV file never leaves your device and nothing is stored or seen by us.
- What can I put in, and what do I get out?
- Grab a thumbnail accepts MP4, MOV, WebM, MKV and gives you back a JPG file. You can also set timestamp and format before you run it.
- What resolution is the image?
- The frame is captured at the video's native resolution, so it's exactly as sharp as the source.