◆ independent clinical software
Clinical tools that run in your browser.
ClinStack is the home for a small set of independent clinical apps. They're free and open-access, and built to run fully offline — so they stay usable in low-resource, low-connectivity settings, including across low- and middle-income countries.
Free & open-access
Works offline
Installable (PWA)
No account
No data leaves your device
The apps
saasp.clinstack.app
Live
SAASP
Antibiotic prescribing decision support for adults, based on the South African guideline (SAASP 2026).
Syndromes · Organisms · Antibiotics · AWaRe · Dosing calculators · Checklist
Open
pulmcalc.clinstack.app
Live
PulmCalc
Respiratory function calculators built on the GLI reference equations.
GLI spirometry (z-scores) · Transfer factor (TLCO) · Post-op predicted (PPO)
Open
criticalc.clinstack.app
Live
CritiCalc
A comprehensive suite of adult ICU severity, prognosis and decision scores.
Mortality · Sepsis · Respiratory · Neurology · Haematology · GI & hepatology · Burns
Open
More soon
New tools join the stack over time.