MS Project in your browser:
GanttChart in real-world projects

Full dependency management, critical path, resource tracking — and all of it running natively in the browser. How teams replace desktop project tools with GanttChart.

Project management tools have a recurring problem: the best scheduling engines live in desktop applications that nobody wants to install, can’t be embedded into existing platforms, and require everyone on the team to own a licence. When a product team needs a Gantt chart inside their own web app, the options shrink fast.

TreeGrid GanttChart is built specifically for this gap. It’s not a standalone SaaS tool — it’s a JavaScript component that runs inside your application, on your data, with your UI. But what does that mean in real projects?

Where GanttChart makes sense

GanttChart fits anywhere a web application needs to display, edit, or track time-based tasks and resources — without redirecting users to an external tool.

Story #1: replacing MS Project exports with a live Gantt

A construction management platform was exporting project schedules to MS Project, letting site managers update them offline, then importing the files back. The round-trip took hours and introduced errors every time a dependency changed.

Integrating GanttChart directly into the platform eliminated the export cycle entirely. Site managers now drag tasks to reschedule, draw dependency arrows between them, and watch the critical path recalculate in real time. The schedule lives in the application — no desktop software, no file transfers.

Story #2: resource calendars for a service business

A field service company needed to visualise technician schedules across dozens of team members — which jobs were assigned to whom, where gaps existed, and where two assignments overlapped on the same day.

The bar chart module of GanttChart was the right fit here: not a traditional task-dependency Gantt, but a row-based calendar where each technician is a row and each job is a bar. Bars can be dragged between rows to reassign jobs, resized to change duration, and automatically flagged when they overlap. The dispatcher sees the entire team’s week on one screen.

Story #3: embedding a Gantt inside an ERP system

A mid-market ERP vendor needed a scheduling view for their production module. The requirement was strict: the component had to feel native to the ERP’s UI, share its data model via a JSON API, support multi-level task grouping by order and operation, and export the full schedule to PDF for sign-off.

GanttChart was integrated as a React component. The ERP’s existing colour scheme was applied via JSON theming in an afternoon. Task grouping matched the production order hierarchy. PDF export with custom headers and page scaling was configured without writing a line of server-side code.

What’s different from other Gantt libraries

• Real automatic scheduling. Dependencies, calendars, constraints, and critical path are calculated in the browser — not just drawn on a timeline.
• Gantt and bar chart in one package. Task scheduling and resource calendars share the same component, data model, and API.
• Full TreeGrid grid power underneath. Sorting, grouping, filtering, Excel formulas, and XLSX export available on every Gantt row.
• RTL and Hijri calendar support. One of the few Gantt components that handles Middle Eastern project management requirements out of the box.
• No external dependencies. Pure JavaScript — no jQuery, no moment.js, no additional charting library required.

Getting started

GanttChart ships as part of the TreeGrid package with a fully functional trial version. Examples cover React, Vue, Angular, Svelte, and Vanilla JS. Server-side scripts for Node.js, ASP.NET, JSP, and PHP are included.

The component connects to any backend returning JSON or XML. For a quick proof of concept, the live examples on the TreeGrid website include a full project schedule you can drag, edit, and reschedule without writing any code.