Resize Image Online
100% Local Browser ProcessingDrop image here to scale in px, cm, mm, in or %
Supports PNG, JPG, WebP, GIF & BMP up to 50MB. Clipboard paste (Ctrl+V) & Passport/Govt form presets built-in.
How to Resize Images Online
Scale pixel dimensions and change file resolution in seconds directly in your web browser with zero server uploads.
Upload Photo or Drag & Drop
Select any PNG, JPG, WebP, GIF, or BMP image file. You can also paste from clipboard or try our instant sample photo.
Adjust Dimensions (WxH) or Presets
Enter exact custom pixel width and height, toggle aspect ratio lock, or select quick percentage scaling presets (50%, 75%, 200%).
Export & Save Instantly
Choose target format (PNG, JPG, WebP, AVIF), adjust compression quality parameters, and click 'Resize & Download'.
Social Media Image Dimension Cheat Sheet
Use these standard pixel dimensions to ensure your resized photos display cleanly on any platform without stretching.
| Platform / Standard | Recommended Size | Aspect Ratio | Common Use Case |
|---|---|---|---|
| YouTube Video Thumbnail | 1920 x 1080 px | 16:9 | Standard HD video thumbnails & displays |
| Instagram Square Post / Avatar | 1080 x 1080 px | 1:1 | Main feed posts & profile pictures |
| Instagram Portrait Post | 1080 x 1350 px | 4:5 | High-engagement vertical feed images |
| Instagram Story / Reel / TikTok | 1080 x 1920 px | 9:16 | Full-screen vertical story frames |
| Facebook Post / OpenGraph Share | 1200 x 630 px | 1.91:1 | Social media link preview banners |
| Twitter / X Header Banner | 1500 x 500 px | 3:1 | Profile banner background headers |
| Standard Website Hero Image | 1200 x 800 px | 3:2 | Blog featured images & web headers |
Why Use Meema Tools Image Resizer?
Designed for high performance, absolute privacy, and seamless browser pixel scaling.
100% Private & Client-Side Execution
Zero uploads to remote servers. All pixel scaling operations execute securely within your browser.
Aspect Ratio Lock & Percentage Presets
Scale by exact pixel boundaries (WxH) or percentage factors (25%, 50%, 75%, 200%) with automatic proportion locking.
Social Media Dimension Presets
1-click resize presets for Instagram, YouTube, Facebook, Twitter, and website banners.
Multi-Format Export & Compression
Export resized photos as PNG, JPG, WebP, or AVIF with customizable compression quality.
Frequently Asked Questions
About Image Resizing
Everything you need to know about browser-based pixel resizing, aspect ratio locks, format exports, and privacy guarantees.
Privacy Guaranteed
All image operations run locally in your browser memory. Zero files are uploaded or stored on any server.
Our Image Resizer uses high-performance HTML5 Canvas bicubic sampling to scale pixel width and height directly inside your browser memory. Files are processed locally without cloud server uploads.
Simply keep the 'Lock Aspect Ratio' toggle enabled. When you type a new width or height, the other dimension will automatically recalculate to prevent image distortion.
We offer quick percentage presets (25%, 50%, 75%, 100%, 150%, 200%) and standard social media presets including 1920x1080 HD, 1080x1080 Instagram Square, 1080x1920 Story, 1200x630 Facebook, and 1500x500 Twitter Banner.
Yes! You can export your resized image as PNG, JPG, WebP, or AVIF with full control over compression quality.
No! All image resizing operations take place 100% locally on your computer or smartphone browser.
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