Smaller files mean every future download uses less energy. We estimate potential reduction using the Sustainable Web Design model: data-transfer energy × grid carbon intensity.
Energy intensity (SWDM v3): 0.81 kWh per GB transferred.
Global default grid intensity: 442 g CO₂e per kWh.
This reflects data-transfer only and excludes the one-time CPU cost to compress on your device.
Your Privacy & Our Stats
Your images stay on your device. All compression happens locally in your browser. We don’t upload or store files.
To show impact, we collect anonymous counts (image totals, bandwidth saved). To prevent spam, IPs are used for short-lived rate-limits and are never stored with stats.
You’re in control. Opt out right here—or use the settings panel (gear above) any time:
Terms of Service
OnlyJPG is a free tool provided “as-is,” without warranties. Always keep backups of your originals.
Use it for good. Don’t use it for illegal, malicious, or abusive purposes.
We aren’t liable for issues, data loss, or existential crises arising from its use.