Privvert - private browser-based file toolsPrivvert

Selector de miniatura

Guarda cualquier fotograma como PNG/JPG

Suelta los archivos aquí
o haz clic para examinar - los archivos permanecen en tu dispositivo
Tamaño máximo: 500 MB

Sobre esta herramienta

Scrub through any video, pick the exact frame you want, and save it as a PNG or JPG image. The right tool for choosing a custom YouTube thumbnail, picking a clean still for a podcast cover, or grabbing a hero image from product footage.

The captured frame uses the source video's full resolution, so the saved image is as crisp as the video itself. The whole tool runs in your browser - no upload, no quality loss from server-side re-encoding.

Características

  • Frame-by-frame scrubbing with arrow keys
  • PNG (lossless) or JPG (smaller) export
  • Captures at the source video's full resolution
  • Reads MP4, MOV, MKV, WebM and most other formats
  • Browser-only - your footage stays private
  • Free, no watermark
  • Captures multiple frames at evenly spaced timestamps for a contact sheet

Cómo usarla

  1. Drop in your video.
  2. Scrub or use arrow keys to land on the exact frame you want.
  3. Pick PNG or JPG output.
  4. Click Save and download the image.
🔒 100% privado

Todo sucede dentro de tu navegador usando JavaScript y WebAssembly. Tus archivos nunca se suben a un servidor, nunca se almacenan y nosotros nunca los vemos.

Preguntas frecuentes

Will the exported image match the video resolution?

Yes - the captured frame uses the source video's full pixel dimensions. A 4K video gives a 3840×2160 image.

Why does my browser show a blurry preview but export a sharp file?

The on-screen preview is downscaled for performance. The exported file always uses the source resolution.

PNG or JPG for a YouTube thumbnail?

JPG is fine - YouTube re-encodes thumbnails anyway, and JPG is smaller for upload.

Can I capture multiple frames at once?

Use the Frame Extractor tool for batch extraction at a fixed rate.

Why does the thumbnail look slightly off-time?

Most video formats only allow seeking to keyframes; the nearest keyframe to your requested time may be a fraction of a second away. For frame-exact capture, ask for an offset slightly past the moment you want and the encoder will land on it.

Can I export at the video's original resolution?

Yes by default. Use the resize option if you want a smaller thumbnail for social media or a video gallery.