Free, open-source WiFi planner that runs in your browser. Drop a floorplan, place access points from 100+ real models, and see signal coverage through walls in real time. Each wall material has realistic RF attenuation. Glass, brick, concrete all behave differently. Channels are assigned automatically, and a 3-stage optimizer finds ideal AP placement. No account, no install, no subscription.
I kept running into co-channel interference in my apartment and wanted to figure out the best channel assignments without paying for Ekahau. I looked around and everything was either expensive enterprise software or too basic to be useful.
So I built Deconflict. It started as a graph coloring solver for channel assignment, but once I could see the interference graph I wanted to see the actual signal coverage too. That led to wall detection from floorplan images, then per-material RF attenuation (glass vs brick vs concrete), then an AP placement optimizer.
The hardest part was making the heatmap feel right. Real indoor signal propagation is messy. I went through several iterations of the signal model before landing on one that looks physically plausible and runs fast enough to update as you drag APs around. The wall material system made the biggest difference. Seeing your signal actually degrade through a concrete wall differently than a glass door makes the tool genuinely useful for planning.
It's completely free and open source. Everything runs in the browser, nothing hits a server. I use it for my own network and figured others might find it useful too.
I’ve run a decent number of site surveys, and having something lightweight like this in the browser is a big win compared to traditional tools.
How accurate have you found the attenuation modeling across different materials?
Really nice idea, especially the real-time interference visualization. How do you handle more complex layouts like multi-floor homes or offices?
Congrats on the launch! The product concept looks solid.
Quick performance alert: I just ran a real-device test from Beijing, and the landing page takes 30s+ to become interactive. It seems like a major bottleneck with the API or font loading in this region.
I’ve got the full recording with console logs ready. Would you like me to send you the link to help your team debug?
Ok this is one of those tools I didn't know I needed until now. The realistic wall material attenuation is what makes this actually useful vs just guessing where to put access points. Does the 3-stage optimizer account for expected device density? Like a conference room with 20 people on video calls vs a hallway nobody sits in?
Really handy!! Have users discovered any issues in their setup that they wouldn’t have noticed otherwise??
I have this robo vacuum at my home and I also really don't understand why in some areas it doesn't get the Wi-Fi access. Having this loaded onto the system would really help me plan out those and also how to position my Wi-Fi. Having it open source is ready to add on. Thank you for this, Sean
Sean Reid