Free Clinical Tools for Healthcare Professionals

Evidence-based medical tools that run entirely in your browser. No sign-up, no data collection, no tracking. From DICOM imaging to bedside calculators — everything you need, completely free.

100% Private Evidence-Based Mobile-First No Sign-Up

Clinical Calculators

Evidence-based calculators for bedside use. Instant results, no sign-up required.

Why MDTools

Evidence-Based

Every tool cites published guidelines, validated equations, and peer-reviewed literature. No AI-generated guesses, no black boxes — just the same evidence you'd find in UpToDate or the primary literature.

100% Private

All calculations and image processing run entirely in your browser. Zero data is ever transmitted to any server. No accounts, no cookies, no analytics. MDTools is a static site with no backend whatsoever.

Built for Bedside

Mobile-first design with large touch targets and instant results. No page reloads, no loading spinners. Open a calculator, enter values, get your answer. Works offline once loaded.

Frequently Asked Questions

What is MDTools?

MDTools is a free collection of evidence-based clinical tools built for healthcare professionals. It includes a full DICOM medical image viewer, 20+ clinical calculators, and more tools coming soon. Everything runs entirely in your browser — no accounts, no data collection, no backend servers.

Is MDTools free to use?

Yes, MDTools is completely free. There are no subscriptions, no ads, and no sign-up required. All tools are available immediately in your browser.

Is my patient data stored or transmitted?

No. All calculations and image processing happen entirely in your browser using JavaScript. No patient data is ever transmitted to any server. MDTools is a static website with no backend.

What clinical tools are available?

MDTools offers a browser-based DICOM viewer for medical images, plus 20+ calculators including: BMI, eGFR (CKD-EPI 2021), Creatinine Clearance (Cockcroft-Gault), Anion Gap, Corrected Calcium, CHA₂DS₂-VASc, HAS-BLED, Wells DVT, Wells PE, MELD/MELD-Na, HEART Score, CURB-65, SOFA, qSOFA, APGAR, Framingham Risk Score, Opioid MME Converter, ABG Interpreter, Parkland Formula, and Mean Arterial Pressure. More tools are coming soon.

Can I use MDTools on my phone during rounds?

Yes. MDTools is designed mobile-first for bedside use. All tools have large touch-friendly inputs and work on any phone or tablet browser without downloading an app.