Image Thumbnail Maker

About Image Thumbnail Maker

Upload any photo and crop it to the exact pixel dimensions required by YouTube, Instagram, X (Twitter), TikTok, Facebook, LinkedIn, or any web platform. All processing runs entirely in your browser — your image is never uploaded to any server.

For YouTube Channel Art, the tool overlays colored safe-zone guides so you can see exactly which area is visible on TV, desktop, tablet, and mobile before you download.

How to Use

1. Upload your original image (drag-and-drop or click to browse).
2. Select a platform preset from the left panel — YouTube Thumbnail, Instagram Square, X Banner, and more.
3. Drag the white crop box over your image to choose which area to keep.
4. For YouTube Channel Art, toggle the safe-zone guides to make sure text and logos stay inside the Mobile / Text safe areas.
5. Choose output format (JPEG, PNG, or WebP), adjust quality, then click Generate.
6. Preview the result and click Download.

YouTube Channel Art Safe Zones

YouTube Channel Art is displayed at different sizes depending on the viewer's device. Your banner must look good across all of them:

• TV (blue) — full 2560 × 1440 image visible
• Desktop (green) — full-width center band (2560 × 423 px)
• Tablet (orange) — center 1855 × 423 px
• Mobile (pink) — center 1546 × 423 px
• Text safe (yellow) — center 1235 × 338 px — keep all text and logos inside this area

FAQ

• Is my image uploaded anywhere? — No. Everything runs in your browser. Your image never leaves your device.
• What format should I use? — JPEG for photos (smaller size), PNG for graphics with transparency, WebP for the best compression-to-quality ratio.
• My image is smaller than the preset — is that a problem? — The tool will scale it up, but the result may appear soft. Always start with the highest-resolution source available.