Change Image DPI Online Free
Set any JPG or PNG to 72–600 DPI by rewriting only the metadata — pixels are never re-encoded, so there is zero quality loss.
100% Private
Files never leave your device
Instant Processing
No waiting, no queue
Always Free
No signup, no limits
How It Works
A simple 3-step process — no signup, no software needed.
Upload JPG or PNG
Drag and drop up to 50 files — the current DPI of each is read and shown.
Pick Target DPI
Choose 72, 96, 150, 200, 300, 600 or type a custom value.
Download
The DPI tag is rewritten in-place and files download instantly, byte-identical except the metadata.
Why Use QuickImageHub?
Professional-grade tools with complete privacy and instant results.
Complete Privacy
All processing happens in your browser. Your files never leave your device — no server uploads, ever.
Instant Processing
No upload delays, no waiting queues. Processing starts instantly because everything runs locally.
Quality Preserved
Only the DPI metadata bytes are rewritten — the image stream is never decoded or re-encoded, so output is pixel-identical to input.
Works Everywhere
Use on any device with a modern browser — desktop, tablet, or mobile. No software installation needed.
No Limits
No file size caps, no daily usage limits, no premium tiers. Use as much as you need, completely free.
Works Offline
After the page loads, no internet required. Process files even without a network connection.
Change Image DPI vs Competitors
See why privacy-first matters.
| Tool | Uploads Files? | Daily Limit | Free? |
|---|---|---|---|
| QuickImageHub | ✅ No — 100% local | Unlimited | ✅ Always free |
| Online-Convert | ❌ Uploads to server | Re-encodes image | Freemium |
| Convert Town | ❌ Uploads to server | Upload required | Free |
| Photoshop | ❌ Uploads to server | Desktop install | Paid |
Frequently Asked Questions
Everything you need to know.