5 Common Mistakes When Compressing Images
Published: September 16, 2026
Reading time: 4 minutes
Category: Image Tools
Introduction
Compressing images is essential for faster websites, but many people make mistakes that reduce quality or create other problems. Here are five common mistakes and how to avoid them.
1. Over-Compressing Images
Compressing too much can create visible artifacts, especially in photographs. Always test different quality levels to find the sweet spot between size and quality.
2. Using the Wrong Format
Each image format has its strengths. Use JPEG for photographs, PNG for images with transparency, and WebP for modern websites. Using the wrong format can make your images larger than necessary.
3. Not Removing Metadata
Many images contain metadata like camera settings, location, and timestamps. This data adds to file size and can expose personal information. Always strip metadata before uploading.
4. Resizing Incorrectly
Resizing images without maintaining aspect ratio can stretch and distort them. Always lock the aspect ratio when resizing to keep images looking professional.
5. Forgetting Mobile Users
Desktop users aren't the only visitors to your site. Always optimize images for mobile devices using responsive image techniques and appropriate resolutions.
How ToolSpheres Can Help
ToolSpheres' Image Compressor lets you compress images with adjustable quality, choose the right format, and preview results before downloading. All processing happens in your browser.
Try the Tool
Visit ToolSpheres to try this and many other free online tools.