Resize Image Online
Resize JPG, PNG, and WebP images instantly — private, fast, and completely free. Your files never leave your device.
Online Image Resizer Tool (JPG, PNG, WebP)
Note: Quality applies to JPG/WebP. PNG is lossless and ignores quality.
How to Resize an Image Online
- Upload: Select a JPG, PNG, or WebP image from your device.
- Enter dimensions: Set width and height in pixels.
- Maintain aspect ratio: Keep proportions to avoid distortion.
- Adjust quality: Use the slider for JPG/WebP compression.
- Resize: Click Resize Image to process instantly.
- Download: Save the resized image to your device.
All processing happens locally in your browser — nothing is uploaded.
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Supported Image Formats
- JPG: Best for photos; adjustable compression.
- PNG: Lossless; preserves transparency (logos, icons).
- WebP: Modern format with high quality and small file size.
Common Image Resize Dimensions
- Instagram Post: 1080 × 1080 px
- Instagram Story / Reel: 1080 × 1920 px
- Facebook Post: 1200 × 630 px
- YouTube Thumbnail: 1280 × 720 px
- HD Wallpaper: 1920 × 1080 px
- 4K Wallpaper: 3840 × 2160 px
- Twitter Header: 1500 × 500 px
- LinkedIn Banner: 1128 × 191 px
- Passport Photo: 35 × 45 mm (resize in pixels after conversion)
Popular Use Cases
- Reduce image size for faster website loading
- Resize pictures for WhatsApp or Messenger
- Prepare product photos for eCommerce platforms
- Resize images for blog posts or thumbnails
- Fit background images to screen resolutions
Why Use Toolixr Image Resizer?
- Resize to any custom dimensions with precision.
- Aspect ratio lock prevents distortion automatically.
- PNG transparency preserved perfectly.
- Quality slider to balance size and clarity (JPG/WebP).
- Private by design: No uploads; everything runs locally.
- Mobile-friendly UI with responsive layout.
Frequently Asked Questions
Can I resize images to any custom dimensions?
Yes. Set any width/height you want. Aspect ratio lock prevents distortion.
Does PNG transparency remain after resizing?
Yes. PNG resizing keeps transparency intact.
Does the quality slider change resolution?
No. It only adjusts compression for JPG/WebP. PNG remains lossless.
Do I need to upload the image?
No. Everything runs locally inside your browser for full privacy.
Does resizing reduce image quality?
No. It stays sharp unless you intentionally lower JPG/WebP quality.
Is it free?
Yes. Unlimited usage with no sign-up or watermark.
Which image formats are supported?
JPG, PNG, and WebP.
Is it mobile-friendly?
Yes. Works smoothly on phones and tablets.
Can I resize for social media sizes?
Yes. Enter custom dimensions for Instagram, Facebook, YouTube, and more.
Why use this instead of Photoshop?
It’s instant, free, requires no install, and keeps files private.
About Toolixr Resize Image Tool
Toolixr Image Resizer lets you resize JPG, PNG, and WebP images without installing software. All processing happens inside your browser, keeping your images fully private.
After resizing, continue editing using Compress Image, Convert Image, and the rest of our Image Tools.