Online image resizer tool for AVIF WebP PNG JPG formats Image Resizer & Converter

ConvertICO Image Resizer lets you resize and convert images online with precise control over dimensions, quality, and output format. Perfect for web optimization, social media, or any project requiring specific image sizes.
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Drop your image here or click to select

Supports JPG, PNG, GIF, WebP, and AVIF formats. Max file size: 10MB

100%
×
90
Choose the best format for your needs. Modern formats (AVIF & WebP) offer better compression.
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How to Resize Images

  1. Upload your image by dragging and dropping or clicking to select.
  2. Adjust dimensions using the percentage slider or manual inputs.
  3. Choose whether to maintain the original aspect ratio.
  4. Set your preferred quality level (10-100).
  5. Select your desired output format.
  6. Click "Resize Image" to process your file.
  7. Download your resized image immediately.
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Quality & Format Guide

High (75-100)

Best for professional use, printing, or when file size isn't a concern.

Medium (50-75)

Good balance for web use with reasonable file sizes.

Low (25-50)

Smaller file sizes for faster loading with some quality loss.

Very Low (10-25)

Smallest files but noticeable quality reduction.

Output Format Options

JPG

Best for photographs. Smaller file size, no transparency support.

PNG

Supports transparency. Ideal for graphics, logos, and text.

WebP

Modern format with better compression and transparency support.

AVIF

Newest format with excellent compression and smallest file sizes.

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About Image Resizing

This Image Resizer tool helps you optimize images for any purpose:

  • Maintains aspect ratio to prevent distortion.
  • Supports multiple formats including modern WebP and AVIF.
  • Quality control with adjustable compression levels.
  • Batch processing ready with consistent settings.
  • Web optimization for faster website loading.

Image Resizer FAQ

How do I resize AVIF images online? +

Upload your AVIF image, set your desired dimensions, and our tool will resize your AVIF file while maintaining the superior compression and quality that AVIF format offers. AVIF images can be up to 50% smaller than JPEG with better quality.

Can I resize WebP images without losing quality? +

Yes! Our WebP image resizer uses advanced algorithms to resize WebP files while preserving their efficient compression and visual quality. WebP format provides 25-35% better compression than JPEG.

What's the best way to resize PNG images for web? +

When resizing PNG images, maintain transparency by keeping PNG format or converting to WebP. For web use, resize PNG images to your exact display dimensions and consider converting to WebP for better compression while preserving transparency.

How do I resize JPG images for social media? +

To resize JPG images for social media, use these optimal dimensions: Instagram posts (1080x1080px), Facebook posts (1200x630px), Twitter (1200x675px). Maintain 80-90% quality for best results.

What image formats does this online resizer support? +

This image resizer supports JPEG/JPG, PNG, GIF, WebP, and AVIF formats. You can upload any of these formats and even convert between them during the resizing process for optimal web performance.

How does the "Lock aspect ratio" option work? +

When "Lock aspect ratio" is enabled, changing either width or height automatically adjusts the other dimension to preserve the original proportions of your image, preventing distortion when resizing.

What's the difference between AVIF, WebP, PNG, and JPG formats? +

AVIF: Latest format with best compression (50% smaller than JPEG) and excellent quality.
WebP: Modern format with 25-35% better compression than JPEG and transparency support.
PNG: Lossless format supporting transparency, ideal for logos and graphics.
JPG: Best for photos, universal compatibility, good compression but no transparency.

What is the maximum file size I can resize online? +

The maximum file size for uploads is 10MB. If your image exceeds this limit, you may need to compress it first before uploading to our online image resizer.

How does the quality slider affect my resized image? +

The quality slider controls compression: higher values (75-100) give better quality but larger files, while lower values (10-50) create smaller files with some quality loss. The default "High (90)" setting provides excellent results for most uses.

Can I resize multiple images at once online? +

Currently, this tool processes one image at a time to ensure optimal quality and performance. For each image, you can quickly adjust settings and resize with the same high-quality results.

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Processing Statistics

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30%
Average Size Reduction
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5
Output Formats
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100%
Free to Use