Frequently Asked Questions

Find answers to common questions about our free online image tools. No signup required - just upload and start editing!

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Free to Use
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Image Tools
10MB
Max File Size

General Questions

Is IMG2Resizer completely free to use?

Yes, IMG2Resizer is 100% free to use. All our image tools including resize, compress, crop, convert, rotate, flip, and more are available without any cost. There are no hidden fees, no subscriptions, and no premium features locked behind paywalls. We believe everyone should have access to professional image editing tools.

Do I need to create an account or sign up?

No account or signup is required! Simply visit our website, upload your image, and start editing immediately. We don't ask for your email, we don't require registration, and we don't force you to create a login. Just use the tools and download your processed images instantly.

Are my images safe and private?

Your privacy is our top priority. All image processing happens directly in your browser using JavaScript - your files are never uploaded to our servers. This means your photos stay completely private and secure on your own device. We don't store, access, or share any of your images.

What image formats does IMG2Resizer support?

IMG2Resizer supports all major image formats including:

  • JPG/JPEG - Best for photos
  • PNG - Best for graphics with transparency
  • WebP - Modern format with superior compression
  • GIF - For animations and simple graphics
  • HEIC - iPhone/iOS photo format
  • SVG - Scalable vector graphics
  • PDF - Document format (for conversion)
What is the maximum file size I can upload?

You can upload images up to 10MB in size. This covers most images from smartphones and digital cameras. For larger files, we recommend using our Image Compressor first to reduce the file size while maintaining quality, then proceed with other editing tasks.

Image Resizing

How do I resize an image without losing quality?

To resize images with minimal quality loss:

  1. Use our Image Resizer tool
  2. Set the quality slider to 90-100%
  3. Avoid enlarging images beyond their original dimensions
  4. When possible, reduce size rather than enlarge
  5. Use PNG format for graphics and JPG for photos

Our advanced algorithms use bicubic interpolation to minimize quality degradation during resizing.

Can I resize multiple images at once?

Yes! Our Bulk Image Resizer allows you to upload and resize multiple images simultaneously. You can:

  • Upload up to 10 images at once
  • Apply the same dimensions to all images
  • Use preset sizes for Facebook, Instagram, Twitter, etc.
  • Download all resized images as a ZIP file
What are the best image sizes for social media?

Here are the recommended image sizes for major social media platforms in 2026:

Platform Image Type Size (pixels)
Instagram Post (Square) 1080 × 1080
Instagram Story 1080 × 1920
Facebook Post 1200 × 630
Twitter/X Post 1200 × 675
LinkedIn Post 1200 × 628
YouTube Thumbnail 1280 × 720
TikTok Video Cover 1080 × 1920

Our tools include preset sizes for all these platforms - just select from the dropdown!

How do I resize an image to a specific KB size?

To achieve a specific file size (e.g., under 100KB for email attachments):

  1. Use our Image Compressor
  2. Adjust the quality slider downward
  3. Check the resulting file size in real-time
  4. Continue adjusting until you reach your target size

Alternatively, reducing image dimensions will also reduce file size significantly.

Image Compression

How much can I compress an image?

Typical compression results:

  • 50-60% reduction - High quality, almost no visible difference
  • 60-75% reduction - Good quality, minor differences visible on close inspection
  • 75-85% reduction - Acceptable quality for web use

Our smart compression algorithms analyze each image to find the optimal balance between file size and visual quality. Photos typically compress better than graphics with text.

What is lossy vs lossless compression?

Lossy compression (JPG, WebP) permanently removes some image data to achieve smaller files. The quality loss is usually imperceptible at high quality settings.

Lossless compression (PNG) reduces file size without losing any data. The image is pixel-perfect identical to the original, but file sizes are larger.

Recommendation: Use lossy (JPG) for photos and lossless (PNG) for graphics, logos, and screenshots.

Why are my compressed images still large?

Several factors can affect compression results:

  • PNG format - PNGs don't compress as well as JPGs. Try converting to JPG.
  • High resolution - Large dimensions = large files. Consider resizing first.
  • Complex images - Images with lots of detail compress less effectively.
  • Quality settings - Lower the quality slider for smaller files.

Image Conversion

What is the difference between JPG and PNG?

JPG/JPEG

  • ✅ Smaller file sizes
  • ✅ Best for photographs
  • ✅ Widely supported
  • ❌ No transparency support
  • ❌ Loses quality with each edit

PNG

  • ✅ Supports transparency
  • ✅ Lossless quality
  • ✅ Best for graphics/logos
  • ❌ Larger file sizes
  • ❌ Not ideal for photos
Why should I convert images to WebP format?

WebP offers superior compression compared to both JPG and PNG:

  • 25-35% smaller than comparable JPG images
  • 26% smaller than PNG while maintaining transparency
  • Supported by all modern browsers (Chrome, Firefox, Edge, Safari)
  • Recommended by Google for better SEO and Core Web Vitals
  • Improves website loading speed significantly

Use our JPG to WebP converter for quick conversion!

How do I convert HEIC to JPG?

HEIC is Apple's image format used on iPhones (iOS 11+). To convert:

  1. Go to our HEIC to JPG Converter
  2. Upload your HEIC files from iPhone or Mac
  3. Choose quality settings (90% recommended)
  4. Click Convert and download your JPG files

The conversion maintains excellent image quality while making your photos compatible with all devices and websites.

How do I convert an image to PDF?

Use our Image to PDF Converter:

  1. Upload one or multiple images
  2. Arrange the order if converting multiple images
  3. Choose page size (A4, Letter, etc.)
  4. Set orientation (Portrait or Landscape)
  5. Click Convert and download your PDF

This is perfect for creating documents, portfolios, or multi-page image collections.

Technical Questions

Why is my image blurry after resizing?

Blurriness usually occurs when:

  • Enlarging images - Upscaling creates new pixels that don't exist in the original
  • Too low quality setting - Increase the quality slider
  • Original is low resolution - You can't add detail that isn't there

Tip: For best results, always start with the highest resolution version of your image and reduce size rather than enlarge.

What does DPI mean and should I change it?

DPI (Dots Per Inch) indicates print resolution:

  • 72 DPI - Standard for web/screen display
  • 150 DPI - Good for basic printing
  • 300 DPI - Professional print quality

For web use: DPI doesn't matter - only pixel dimensions count. A 1000×800 image displays the same regardless of DPI setting.

For printing: Use 300 DPI at your desired print size for best quality.

Which browser works best with IMG2Resizer?

IMG2Resizer works with all modern browsers:

  • ✅ Google Chrome (Recommended)
  • ✅ Mozilla Firefox
  • ✅ Microsoft Edge
  • ✅ Safari
  • ✅ Opera

For the best experience, we recommend using the latest version of Chrome or Firefox. Our tools also work on mobile browsers for on-the-go editing.

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