Common social media sizes
Choose presets for YouTube and Twitch thumbnails, TikTok and Instagram Reels covers, Instagram portrait posts, X post images, Facebook share images and square social graphics.
Free browser tool
Thumbnail Resizer
Resize one image for the platforms you publish on. Your image stays on your device and is processed entirely in your browser.
Creator Radar Thumbnail Resizer
YouTube, Twitch, TikTok, Instagram, X and more.
● Private: image stays in your browser
◎Your preview will appear here
Choose an image to start.
Thumbnail & social image guide
Resize images for the platform you publish on.
A single image rarely fits every social platform well. This free resizer gives you ready-made dimensions for common creator formats while keeping the image processing on your device.
Crop or keep the full image
Use Fill frame when you want the image to completely fill the target size, or Fit whole image when keeping every part of the original matters more than filling the frame.
Private browser processing
Your JPG, PNG or WEBP is processed with your browser’s built-in canvas tools. Creator Radar does not need to upload the image to a server to resize it.
How to resize a thumbnail or social image
- Choose or drop an image into the resizer.
- Select the platform preset, crop mode and download format you need.
- Preview the result, then download the resized image to your device.