HTML Query Plan

html-query-plan is a JavaScript library for rendering Microsoft SQL Server execution plans as interactive HTML diagrams. The current stable version is 2.6.1, with maintenance releases as needed. It differentiates from tools like SentryOne Plan Explorer by providing a lightweight, browser-based solution that does not require Windows or SSMS. The library includes an XSLT 1.0 stylesheet for pre-rendering and JavaScript for drawing connecting lines. It supports both estimated and actual execution plans, with icons for batch mode, parallelism, and warnings. Browser support includes Chrome, Firefox, and IE9+.