BloodMarker is a health information service that helps people understand blood test results in clear, calm language. Users can upload a PDF, photo, or scan of a lab report, and the service analyzes multiple markers together, highlighting results that are healthy, borderline, or outside the stated range. Its explanations describe what individual values may mean and how related markers can form a broader pattern, helping users prepare informed questions for their doctor.

BloodMarker also provides action plans with general guidance on food, exercise, possible retesting, and when to seek medical advice. Its recommendations include practical food suggestions and are presented as general clinical guidance, not personal medical advice. The site offers a sample report, free tools, educational guides, and a searchable library of reference ranges and plain-English explanations covering more than 50 blood markers across categories such as cholesterol, blood sugar, kidney function, complete blood counts, thyroid, vitamins, and electrolytes. BloodMarker says reports are processed privately and that user data is never sold.