Image Resizer
Resize images online for free. Scale for social media, create thumbnails, or set custom dimensions. All processing happens in your browser.
Custom Dimensions
Set exact width and height in pixels
Social Media Presets
One-click resize for Instagram, Facebook, Twitter
100% Private
Processed locally — no upload to servers
📐 Preset Sizes
🖼️ Preview
How It Works
- Upload your image — drag & drop or click browse. JPG, PNG, WebP supported.
- Choose dimensions — use a preset or enter custom width/height. Constrain proportions to avoid distortion.
- Download — your resized image is ready instantly. No quality loss from upscaling — we use Canvas API.
Use Cases
Instagram posts (1080×1080), Stories (1080×1920), Facebook covers (820×312), Twitter headers (1500×500).
Resize large photos to web-friendly dimensions. Faster load times, better SEO, optimized for mobile.
Create square thumbnails for YouTube, blogs, e-commerce product listings. Quick and consistent.
Scale images down to fit email attachments or embed in PDFs, Word docs, and presentations.
Frequently Asked Questions
Does resizing reduce image quality?
Downscaling (making smaller) preserves quality. Upscaling (making bigger) does not improve quality — the tool will resize up but the image won't gain new detail.
What is "constrain proportions"?
When enabled, changing width automatically adjusts height (and vice versa) to keep the original aspect ratio. This prevents stretching or squashing your image.
Is the tool really free?
Yes — completely free. No registration, no limits, no watermarks. Everything processes in your browser via Canvas API.
Are my images uploaded anywhere?
Never. All resizing happens client-side. Your images never leave your device.