MDTools is a free, open-access suite of clinical tools built for healthcare professionals, students, and educators. It includes a full DICOM medical image viewer, 100+ evidence-based clinical calculators, and lab value reference guides — all running entirely in your browser with zero data transmitted to any server.

Key Features

• DICOM Viewer — View medical images (CT, MRI, X-ray) directly in the browser with window/level, zoom, pan, and measurements. No uploads, no cloud — everything stays on your device.
• 100+ Clinical Calculators — From bedside scores (GCS, APGAR, SOFA, CURB-65) to specialty tools (MELD-Na, CHA₂DS₂-VASc, Framingham) to drug dosing calculators (Vancomycin AUC, Heparin, Insulin, GLP-1 agonists).
• Lab Reference Guides — Normal ranges, clinical interpretation, and differential diagnoses for common lab values.
• Drug Dosing Tools — Weight-based dosing, pediatric dosing, dose conversions, and pharmacy workflow calculators.

Why MDTools?

• 100% Free — No subscriptions, no ads, no paywalls. Every tool is available immediately.
• 100% Private — Static site with no backend. All calculations run in JavaScript in your browser. No patient data is ever collected or transmitted.
• Mobile-First — Designed for bedside use with large touch targets and instant results. Works offline once loaded.
• Evidence-Based — Every calculator cites published guidelines, validated equations, and peer-reviewed literature.

CodeHerald provides a new way to keep track of your code review queue, grouped by your next action needed.

When would you use CodeHerald?

• You work in a team that does code reviews.
• Your team receives ad-hoc code review requests via multiple channels: DMs, emails, bookmarks of filtered lists.
• Your team sometimes loses track of small pull requests, delaying them days.
• Your team find ad-hoc code review requests distracting, but cannot put a finger on why.
• Your team tried different strategies to improve code review process, and none of them felt right.

If any of the above is true, CodeHerald will help you.

What can CodeHerald do for you?

CodeHerald groups pull requests by next action: must review, needs an update, can be merged. It allows you to replace slack, emails, filters, and browser bookmarks with one single page that you can open at a glance and decide which PR to tackle next.