PNG vs JPG: Which Format Should You Use?
PNG and JPG are the two most common image formats on the web, but they serve different purposes.
PNG (Portable Network Graphics) uses lossless compression, meaning no quality is lost when saving. PNG supports transparency, making it ideal for logos, icons, graphics with text, and screenshots. However, PNG files are typically much larger than JPG.
JPG (Joint Photographic Experts Group) uses lossy compression, which discards some data to achieve smaller file sizes. JPG is perfect for photographs where slight quality loss is acceptable. It does not support transparency.
When to use PNG
- Logos and icons
- Images with text
- Graphics requiring transparency
- Screenshots and UI elements
When to use JPG
- Photographs
- Large images for web
- Email attachments
- Social media photos
For most website photos, JPG at 80–90% quality offers the best balance. Use PNG when you need transparency or pixel-perfect graphics.
When we built SUHADIMG, PNG versus JPG was the number-one question from new users. Photographers upload PNG expecting smaller files; developers upload JPG to platforms that demand transparency. Understanding the trade-off saves hours of rework.
Deep dive: compression mechanics PNG uses DEFLATE lossless compression. Every pixel is preserved, which is why text edges stay crisp in screenshots. JPG uses discrete cosine transform (DCT) lossy compression that removes high-frequency detail the eye barely notices in continuous-tone photos. That is why a 4000×3000 photo might be 8 MB as PNG and 800 KB as JPG at 85% quality.
Workflow we recommend at SUHADIMG Start with the end use case. Website hero photo? JPG or WebP at 80–85%. Logo for a dark and light header? PNG with transparency. Email newsletter inline image? JPG under 200 KB after resize. E-commerce white-background product shot? JPG unless the catalog requires PNG.
Case study: blog featured image A 2400 px wide PNG screenshot weighed 2.1 MB. Resizing to 1200 px width, converting to JPG at 82%, and running through our compress tool brought it to 94 KB with readable text. Page load improved measurably on mobile.
Questions we hear often Should designers deliver PNG or JPG to clients? Deliver PNG or SVG masters, export JPG for web. Can you convert back and forth freely? You can, but JPG→PNG does not restore lost data—it only prevents further loss during editing.
Try our PNG to JPG and JPG to PNG tools on suhadimg.site — free, private, batch-ready.