Image Tools
YouTube Thumbnail Size
YouTube recommends 1280×720 (16:9) for custom thumbnails. Resize locally with PrivyTool before uploading to YouTube.
Resize
Preview updates live. Optionally compress the resized file in the same step.
When aspect ratios differ
Presets
PNG keeps sharp edges; JPG/JPEG are smaller photos; WebP/AVIF are modern and usually smallest.
Resize first, then reduce file size in one download.
How to use
- 1
Upload artwork
Add your thumbnail design or photo.
- 2
1280 × 720
Standard YouTube thumbnail dimensions are pre-set.
- 3
Download
Save and upload to YouTube Studio.
FAQ
Do you upload my images?+
No. Processing runs entirely in your browser using the Canvas API. Your files never leave your device.
Is PrivyTool free?+
Yes. Basic image tools are free. Optional premium features may arrive later as traffic grows.
Related tools
Resize Image
Custom dimensions, fit modes, and optional compression.
Resize to 1080p
Scale photos and graphics to 1920×1080 for slides, thumbnails, or HD displays — processed entirely on-device.
Compress JPG
Optimize JPG photos for web, email, WhatsApp, or forms. PrivyTool compresses locally with adjustable quality — free phot
All Image Tools
Browse the full privacy-first image toolkit.