Thumbnail and banner resizer

Pick the place you are uploading to and get a picture at exactly the size it asks for. Move the crop until the important part is in view. Nothing leaves your device.

Drop a picture here or choose one

Choose a picture to start. It stays on your device.

Common sizes

  • YouTube thumbnail: 1280 × 720 (16:9), under 2 MB.
  • Twitch: 1920 × 1080 for offline and video screens, 1200 × 480 for the profile banner.
  • X header: 1500 × 500. LinkedIn banner: 1584 × 396.
  • Vertical covers: 1080 × 1920, and 1080 × 1350 for an Instagram portrait.

These are the commonly published sizes; check the platform’s upload page for the current ones.

Thumbnails that get clicked

  • Large face, clear emotion, three words at most.
  • High contrast so it reads at the size of a postage stamp.
  • Keep text away from the bottom-right corner, where the video length is shown.

Make the picture from your show

Grab a still from your recording at full quality and use it here. In Streamdzy press F10 to save a snapshot of the show.

Questions

Which type of file should I use?

JPG is smaller and fine for thumbnails. Use PNG when you need sharp text or transparency.

Can I use this on my phone?

Yes, it works in a phone browser.

Doing this a lot? Get the app.

Streamdzy is a free streaming and recording app for Windows: several cameras, your phone as a camera, going live to many places at once, and recording first so a bad connection never costs you the show.