Free Image Resizer

Professional scaling with intelligent algorithms. Supports social media dimensions, custom sizes, and maintains quality across all formats.

Resize Your Image

Upload an image to resize to custom dimensions

Supports JPG, PNG, WebP • Max size: 10MB

Choose Image

Your Images Stay Private

All processing happens directly in your browser. Images are never uploaded to our servers. Your photos remain completely private and secure.

How to Scale Images Online

Three simple steps to resize your photos

Upload Your Image

Drag and drop or select any image file. Support for all major formats.

Adjust & Scale

Set custom dimensions or choose from social media presets with intelligent scaling.

Download Result

Get your resized image instantly in the original format.

Professional scaling features

Why Choose Our Smart Resizer?

Advanced Lanczos3 algorithm for professional image scaling

Format Preservation

Maintains original file format (JPEG, PNG, WebP) for optimal results

Smart Cropping

Precise cropping with social media aspect ratio presets

Quality Control

Professional Lanczos3 resampling algorithm - industry standard for preserving image quality during scaling. Superior to basic bicubic interpolation.

No Limits

No registration, no watermarks, unlimited usage. Professional quality guaranteed

Instant Processing

Lightning-fast processing with real-time preview

Batch Processing

Process multiple images at once online

Perfect For Every Need

Web Developers

Create responsive images for different screen sizes
Optimize hero images and thumbnails for faster loading
Generate retina-ready images for high-DPI displays

Social Media Managers

Perfect sizing for Instagram posts, stories, and reels
Optimize cover photos for Facebook and LinkedIn
Create Twitter headers and post images that stand out

Popular Image Dimensions

Common sizes for social media and web

Platform	Use Case	Dimensions	Aspect Ratio
📷 Instagram	Feed Post	`1080×1080`	1:1 Square
📷 Instagram	Story	`1080×1920`	9:16 Vertical
f Facebook	Cover Photo	`1200×630`	1.91:1
🐦 Twitter/X	Header	`1500×500`	3:1

Frequently Asked Questions

Everything about scaling images online

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Does resizing reduce image quality?

No! We use the advanced Lanczos3 algorithm to scale images without losing quality. Your original file format (JPEG, PNG, WebP) is maintained to prevent quality degradation. When making images smaller, quality is preserved perfectly. Professional results are guaranteed every time.

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What's the difference between resize and crop?

Scaling changes the dimensions of your entire image, making it larger or smaller while keeping all content. Cropping removes parts of the image to achieve desired dimensions. Use this tool when you want to keep everything in the image, and crop when you want to focus on a specific area.

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Is my image data safe?

Absolutely! All image processing happens directly in your browser using JavaScript. Your images are never uploaded to our servers, ensuring complete privacy. Once you close the page, no trace of your images remains.

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What are the best sizes for social media?

Each platform has optimal dimensions: Instagram posts (1080×1080), Stories (1080×1920), Facebook covers (1200×630), Twitter headers (1500×500), LinkedIn covers (1128×191). Our tool includes presets for all major platforms, making it easy to get the perfect size.

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Can I process multiple images at once?

Absolutely! Batch processing lets you scale multiple images at once. No limits on how many images you can process. Simply select all images, set dimensions, and process them all together. This feature saves significant time for bulk operations.

Technical Specifications