Lossy vs Lossless Image CompressionâComplete Technical Guide 2026
2026-02-01
Understand the difference between lossy and lossless image compression. Choose the right type for your images.
What is Lossless Compression?
Lossless compression preserves all image data without any quality loss. PNG and GIF use this type. Ideal for logos, icons, and screenshots.
What is Lossy Compression?
Lossy compression discards invisible data to reduce file size. JPG and WebP use it. Ideal for photographsâthe loss is barely noticeable at high quality.
When to Use Each Type
Lossless: logos, screenshots, sharp graphics. Lossy: personal photos, product images, website photos.
Why Are PNG Files So Large?
PNG uses lossless compressionâit keeps every pixel. Complex photographs produce huge PNG files. Converting to JPG reduces size by 70â80%.
Frequently Asked Questions
- What is the difference between PNG and JPG?
- PNG is lossless and supports transparency. JPG is lossy, smaller, and does not support transparency.
- Which format is best for logos?
- PNG for logosâit preserves sharp edges and transparency.