Numerous.aiNumerous.ai brings the power of ChatGPT into Google Sheets and Excel with a simple =AI() formula. No API keys needed—automate content, data, and marketing tasks at scale.(0)Productivity·No-Code·AI Spreadsheet Tools0
VeetrVeetr is a free, open-source sailing instrument system using ESP32 hardware. Monitor real-time wind speed, direction, GPS, and heel angle on any device via a Progressive Web App. DIY build for ~$250.(0)Productivity·Data & Analytics0
TraintasticTraintastic is a free, open-source model railroad control and automation app for Windows and Linux. Drive locomotives, control signals, monitor sensors, and automate layouts with built-in Lua scripting.(0)Productivity·Automation & Agents·No-Code Automation Tools0
Train DriverTrain Driver is a free, open-source WiFi throttle app for controlling model railroad layouts using DCC-EX EX-CommandStation. Supports Arduino, ESP32, Bluetooth, and more.(0)Productivity·Automation & Agents·No-Code0
OpenTreeMapOpenTreeMap is an open-source collaborative platform for urban tree inventory, ecosystem services calculations, and community engagement. Map and manage your city's urban forest.(0)Data & Analytics·Research & Education·No-Code0
OpenCPNOpenCPN is a free, open-source marine chartplotter and GPS navigation app for Windows, Mac, Linux, Raspberry Pi, and Android. Chart courses and track your position at sea.(0)Productivity·Research & Education0
MyTargets ArcheryMyTargets Archery is a free, open-source Android app that helps archers log training sessions, track scores, and analyze progress over time.(0)Productivity·Data & Analytics0
EyeNetraEyeNetra provides an open-source suite of portable autorefractor, phoropter, and lensometer devices with an online portal for mobile eye care clinics, screening events, and teleoptometry worldwide.(0)Productivity·Data & Analytics·Research & Education0
DJI MapperDJI Mapper is a free, cross-platform tool to plan automatic survey and photogrammetry missions for DJI drones, compatible with DJI Fly and Litchi.(0)Productivity·No-Code·Workflow Automation Tools0
A AvNavAvNav is a free, open-source marine navigation app for Android and Raspberry Pi with a browser-based chart display, GPS tracking, and NMEA integration.(0)Productivity·No-Code0
