Cooling centers exist in most cities, but finding one when you need it is the hard part — the information is scattered across city pages, hours change, and half of it is out of date. ACMap puts it on one map that the community keeps current.
Tap any pin to see what it is and when it was last confirmed. No account needed to look — and if you know a spot that isn’t on the map, adding it takes one tap.
What you get
Built for the moment you actually need it: a hot day and a phone in your hand.
- A live map of free cooling spots around you.
- Tap any pin to see what it is — library, mall, café, community center or shelter.
- Community-verified neighbors vote whether a spot is still open and still cool.
- Last-confirmed dates so you know before you go.
- Add in one tap help the people around you the moment you find a spot.
- English and 中文 with no account required to browse.
How it stays fresh
A map of cooling spots is only worth opening if it’s current. ACMap keeps itself honest through the people using it.
Live map
Every free, public cooling spot around you on one map — no city-website scavenger hunt.
Community-verified
Neighbors vote whether a spot is still open and still cool, so bad data gets corrected fast.
Last confirmed
Each spot shows when it was last verified, so you can trust it before you head out.
One-tap add
See a place with free AC that isn’t on the map? Drop a pin in one tap for everyone.
Who it’s for
Anyone riding out a heatwave, and the people looking out for others during one — parents, caregivers, outreach workers, or just a good neighbor who knows where the cool, free places are.
How it’s built
A public-good map with no ad-tech agenda, self-hosted on the PPVNX home cluster behind Cloudflare.
Every pin is put there and kept fresh by real people. Community votes decide whether a spot is still open and still cool, and each one carries the date it was last confirmed.
One codebase ships to web, iOS and Android, in English and 中文. Browsing needs no account at all.
- Platforms
- Web, iOS, Android
- Languages
- English, 中文
- Data
- Community-sourced
- Price
- Free
- Hosting
- Self-hosted k3s
Questions
Is ACMap free?
Yes, completely — and no account is required to browse the map.
How do I know a spot is still open?
Every pin shows when it was last confirmed, and neighbors vote to keep each one current.
Can I add a cooling spot?
Yes. Know a place with free AC that isn’t on the map? Drop a pin in one tap. Notice one that’s closed? A single vote lets everyone know.
What languages are supported?
English and 中文.