Image Resizer
Resize images by percentage or fixed dimensions. Quick presets available for profile photos, wallpapers, and more.
Drop image here, or click to select
Supports JPG, PNG, WebP formats
Image Resizer Guide
Free online image size adjustment tool. Quickly modify image width and height. Supports percentage-based or custom dimensions. Perfect for profile photos, ID photos, website images and more.
Common Size Reference
| Use Case | Recommended Size | Notes |
|---|---|---|
| WeChat Avatar | 200x200 | Square, will be cropped to circle |
| Twitter/Instagram | 300x300 | HD avatar |
| 1-inch ID Photo | 295x413 | Standard 1-inch photo size |
| 2-inch ID Photo | 413x626 | Standard 2-inch photo size |
| Phone Wallpaper | 1080x1920 | 9:16 portrait ratio |
| Computer Wallpaper | 1920x1080 | 16:9 landscape ratio |
| E-commerce Main Image | 800x800 | Taobao/JD standard size |
Tips
- Keep Ratio: Check "Lock Aspect Ratio" to avoid distortion
- Enter One Dimension: Enter either width or height, the other auto-calculates
- Beware Upscaling: Excessive enlargement causes blur, recommend not exceeding 150% of original
- Batch Process: Process multiple images one by one to quickly unify sizes
Common Questions
Q: Why does resized image become blurry?
A: Downsizing is normal, but upscaling then downscaling causes quality loss. We recommend keeping original backups.
Q: Is batch processing supported?
A: Currently single image processing is supported. Process one by one for best results.