How do I resize an image for Instagram?
Upload your image and choose an Instagram preset such as square, portrait, or story.
Free browser tools for creators
Free Image Resizer for Instagram, TikTok, and YouTube
Upload an image, choose a preset, preview it instantly, and download the resized version. No signup required.
Dudical is a free image resizer and crop tool for Instagram, TikTok, and YouTube. Resize images, adjust aspect ratios, and export correctly sized files in seconds.
Resize your image
Drag and drop an image here
or click to choose a file
Choose a preset
Preview
Your image is processed in your browser. Nothing is uploaded to Dudical.
Free
No signup
Works in browser
Fast export
How to resize an image online
Upload your image, choose a preset, preview the result, and download the resized file. Dudical makes it easy to create images for Instagram posts, TikTok vertical content, and YouTube thumbnails without installing anything. You can also use Dudical to crop images online with simple centered crop presets.
Frequently asked questions
What size is a TikTok image?
Most TikTok-style layouts use a 1080 × 1920 vertical format.
What size is a YouTube thumbnail?
The standard YouTube thumbnail size is 1280 × 720.
Does Dudical store my images?
No. Everything is processed locally in your browser.
More free tools
Image Crop Tool
Crop images online with square, portrait, landscape, and vertical presets.
Instagram Resizer
Resize images for Instagram posts and stories.
TikTok Resizer
Resize images for vertical social layouts.
YouTube Thumbnail Resizer
Create properly sized YouTube thumbnails.
All Tools
Browse the Dudical tools collection.