JPG Compression: Getting the Quality Slider Right

JPG compression works by discarding detail the human eye barely notices — but push it too far and you get blocky artifacts around edges and muddy color banding in skies and gradients. ConvertSnap's JPG compressor gives you direct control over that quality/size tradeoff, with a live preview so you can see exactly where "aggressive" turns into "ugly" for your specific photo.

Why Photos Compress Differently Than Graphics

JPG's DCT-based compression was built for continuous-tone photography, not flat-color graphics or text. That's why a compressed vacation photo can look identical to the original at 70% quality, while a screenshot with sharp text edges shows visible artifacting at the same setting. Our tool is tuned for the photographic case JPG was designed for.

Faster Pages, Faster Email, Smaller Backups

Shrinking a batch of JPGs by 60-80% means faster page loads, email attachments that actually send, and photo backups that take less cloud storage. Because JPG has no transparency channel, there's nothing to preserve here beyond the pixels themselves — so ConvertSnap can push compression harder than it would on PNG.

Privacy First: Your Images, Your Device

Your photos are compressed locally in your browser and never uploaded to a server, keeping personal and professional images private from start to finish.