Image Quality 60 vs 70 vs 80: Which Compression Setting to Use
A practical comparison of 60, 70, and 80 quality settings for blog images, product photos, thumbnails, and mobile uploads.
PixelZipKit's fixed benchmark photo produced over 90% file size reduction at quality settings 60, 70, and 80, but the point where visible artifacts appeared differed by image type. Choosing a setting by number alone is less reliable than picking a starting point based on what the image actually needs to show.
Quality 80 is a strong starting point for hero images, product photos, and portfolio visuals where trust and detail matter. It often provides a good balance between size reduction and natural-looking results.
Quality 70 is useful for ordinary blog body images, mobile-first content, and supporting photos. If the image is not displayed very large, quality 70 can look natural while saving meaningful file size.
Quality 60 is best reserved for thumbnails, previews, temporary sharing, and strict upload limits. It can introduce visible artifacts in faces, text, gradients, and fine product details, so review the result before publishing.
- Use quality 80 for important visuals.
- Use quality 70 for general body images.
- Use quality 60 for thumbnails and size limits.
- Be careful with text-heavy screenshots.
- Compare the result beside the original before downloading.
See how far the quality settings actually diverge on one source photo. Both outputs can be downloaded from this page and compared directly.
File size dropped 0.0% in this comparison. At thumbnail size the two look alike; zoomed in, shadows and texture separate first. The images above are web-sized previews; the sizes shown are those of the full original files.
Quality starting points
Plain-language summary
Quality 60 is smaller but can be rougher. Quality 80 is larger but safer. Start important images at 80 and compare 70 or 60 for lighter contexts.
Business rule
Treat quality values as starting points by image type. Keep hero and product-detail images conservative, while managing repeated thumbnails for size reduction with a documented review rule.
- Start hero, product, and portfolio images at 80 or higher
- Compare general body images around 70
- Test thumbnails from 60 while checking edges and color
Quality numbers are starting points
Quality 70 can look excellent on a simple image and poor on a detailed product label. Faces, small text, gradients, and fine textures reveal compression problems faster than plain backgrounds.
Compare three outputs for important images
For important images, test 60, 70, and 80 side by side. A thumbnail may be fine at 60, while a detailed product image may need 80. If the size difference is small, keeping more quality is often the better choice.
Measured difference between quality 60, 70, and 80
Observed result
The photo source was 94.9% smaller at WebP quality 60, 94.2% smaller at quality 70, and 92.6% smaller at quality 80. Quality 80 remained the safer starting point for texture and shadow review.
Common failure case
Choosing by number alone can damage small text, faces, product texture, or gradients. A thumbnail result may still be too soft for a detail page.
Decision rule for this page
Start important images at quality 80, then compare 70 or 60 when the displayed size and publishing purpose allow it. The final criterion is whether the important information survives.
The source and output files are published in the compression benchmark. Use descriptive filenames and alt text that match the page context. Google Image SEO guidance
Is quality 80 always the best starting point?
Not for every image. Simple icons with flat colors and no gradients often look identical at quality 60 or 70. On the other hand, portrait skin tones and fine fabric textures show compression artifacts earlier, making quality 80 or above a safer start for those.
Can a WebP result at quality 80 be larger than the original JPG?
Yes. Re-encoding an already-compressed JPG to WebP can sometimes produce a larger file, especially at higher quality settings. If the WebP result is larger than the original in PixelZipKit, keep the original format instead.