About
TreeProjectPlan is a fast, browser-based planner for estimating and scheduling projects. It combines a work breakdown structure (WBS) with a Gantt chart in one editor.
You start with the big picture and split it into smaller pieces, phase by phase and task by task, until each item is small enough to estimate with confidence. Effort rolls up through the tree automatically, so you always see what the whole project costs and where the bulk of the work sits.
From there, the same tasks go straight onto a timeline. You can link them with dependencies (finish-to-start, start-to-start), assign them to people on your team, and the editor calculates the finish date and the total effort for you. When you change one estimate, the whole plan updates.
TreeProjectPlan is built for speed. It is keyboard-first, runs in the browser with nothing to install, and lets you start planning right away for free, without an account. When you need more, paid plans add cloud storage, team workspaces with shared plans and read-only links for stakeholders, and sub-plans that spin a large branch out into its own linked plan.