Image tools
Resize images to YouTube thumbnail size
Resize JPG, PNG and WebP images to the exact dimensions you need — Instagram posts, Reels covers, YouTube thumbnails or any custom size. Fill, fit or stretch, all processed locally so large photos stay private and instant.
Drop files here, or click to browse
Stays on your device
About
What is the YouTube Thumbnail Resizer?
The Image Resizer changes the pixel dimensions of photos so they fit exactly where you want to post them. It resamples with high-quality smoothing and lets you fill, fit or stretch the picture into the new size.
Tips for best results
- Choose Fill to avoid empty bars; choose Fit inside to keep the whole photo.
- Resize first, compress second for the smallest file.
- Export PNG if the image contains text or sharp graphics.
Why use it
- ●Upload-ready sizes for Instagram, YouTube, Facebook, LinkedIn and X in one click.
- ●Batch resize many photos at once.
- ●Private — photos are processed in your browser, not on a server.
Common uses
- →Making a 1280×720 YouTube thumbnail
- →Preparing a 1080×1350 Instagram portrait post
- →Shrinking huge camera photos before emailing
How to use YouTube Thumbnail Resizer
- 1Drop one or more images.
- 2Pick a preset or enter a custom size.
- 3Click Resize and download.
Frequently asked questions
Are my files uploaded anywhere?
No. Everything runs locally in your browser, so your files never leave your device.
Which formats can I export?
JPG, PNG and WebP.
Will it crop my photo?
Only if you choose Fill. Choose Fit inside to keep the whole picture and add a background.
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