Resize Image Online
Change the pixel dimensions, resolution, or scale percentage of your photos in real-time. Preserve proportions with aspect ratio lock, choose standard social media presets, and download with zero latency.
Drag and drop an image here
JPG, PNG, WebP or GIF
Animated GIFs are exported as a still image.
Standard Image Resolutions & Social Media Dimensions Guide
Recommended pixel dimensions and aspect ratios for web publishing, social platforms, and digital document submissions.
Instagram Square
Standard feed posts, product square showcases, profile carousel slides
Instagram Story / Reels
Vertical full-screen mobile stories, Reels covers, TikTok & Shorts backdrop
Full HD Web Banner
Desktop website hero images, presentation slides, YouTube 1080p backdrops
YouTube Thumbnail
Custom YouTube video covers, embedded blog video cards (under 2 MB)
Twitter / X Post
Single image feed updates, link preview cards, news graphics
LinkedIn Banner
Personal profile background banner, professional company brand header
Passport / ID Photo
Digital visa applications, passport portals, government biometric forms
4K Ultra HD Display
High-resolution wallpapers, digital signage displays, print mockups
How to Resize Images in 3 Easy Steps
1. Upload Your Image
Drag and drop any JPG, PNG, WebP, or GIF from your phone, tablet, or desktop into the workspace.
2. Set Width, Height, or Preset
Type exact pixel dimensions, select a percentage slider (e.g. 50%, 75%), or pick a pre-configured social media preset. Keep aspect ratio locked to prevent distortion.
3. Preview & Instant Download
Review the live resized dimensions, select output format (JPG, WebP, PNG, or PDF document), and download the processed image instantly with zero server lag.
Key Features of ToolBuddy Image Resizer
Exact Pixel & Percentage Scaling
Enter specific custom width and height in pixels or scale dynamically using fast percentage presets (25%, 50%, 75%, 200%).
Proportional Aspect Ratio Lock
Keep proportions locked automatically so images never stretch or skew. Unlock at any time if you require forced exact coordinates.
Instant In-Browser Execution
Powered directly by HTML5 Canvas and local GPU acceleration. Resizing happens on your device in milliseconds without upload queues.
Multi-Format Export & PDF
Export the resized result as JPG with custom compression quality, lossless PNG, modern WebP, or generate a ready-to-print single-page PDF.
Built-In Rotation & Flip
Rotate photos 90°, 180°, or 270° and mirror horizontally or vertically in the same workflow before resizing.
100% Private & Device-Only
Your sensitive photos and confidential documents never leave your computer or phone. Zero cloud storage and zero telemetry.
Frequently Asked Questions
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Find matching width and height values for 16:9, 4:3, 1:1 or any custom ratio.