We built SymptomSense because understanding your health shouldn't require a medical degree or a clinic appointment.
Too many people search their symptoms on unreliable sources, get flooded with worst-case-scenario results, or can't access a doctor quickly enough to get a simple answer.
SymptomSense exists to fill that gap — not as a replacement for doctors, but as a trusted first step. A calm, clear, jargon-free resource that helps you understand what your body might be telling you and whether you need to act on it.
We're based in Amsterdam, Netherlands, and we built this platform to be free, multilingual, and genuinely useful — for a student in Lagos, a parent in Jakarta, or a pensioner in Glasgow.
SymptomSense is powered by a combination of free and open-source technologies — because we believe health infrastructure should be open.
Your symptoms are analysed by Llama 3, an open-source large language model running on Groq's infrastructure. We send your inputs in a structured medical prompt and receive ranked conditions, urgency levels, and plain-language advice. No data is stored after the request completes.
Our doctor and clinic finder queries the OpenStreetMap database via the Overpass API — the same open geographic data used by millions of apps worldwide. Results are displayed on an interactive Leaflet.js map. No API key required, no cost per search.
Our emergency number directory is a manually curated, regularly reviewed database covering ambulance, police, fire, poison control, and mental health crisis lines for 50+ countries. We verify data against official government sources.
Our conditions A–Z library is written in plain English and covers 850+ health conditions. Each condition page includes symptoms, causes, typical treatments, and when to see a doctor. Content is reviewed against NHS, WHO, and Mayo Clinic guidelines.
SymptomSense is built on a foundation of open standards and emerging health technology — designed to grow with the rapidly evolving landscape of digital health.
SymptomSense is an informational platform, not a medical service. We are not doctors and we do not provide medical advice, diagnosis, or treatment.
The symptom checker uses AI to suggest possible conditions based on your inputs. These are educational suggestions, not diagnoses. The same symptoms can mean very different things in different people — only a qualified healthcare professional with access to your full history can diagnose you.
We always tell you when to see a doctor. We always show urgency levels. We always include the disclaimer. We're proud of being honest about what we are — and what we aren't.
For medical emergencies, always call your local emergency services immediately.
Free, no account required, results in under 60 seconds.