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Open Planner Studio

Free#1 of 26 in Construction Scheduling SoftwareGantt Chart Software

Open Planner Studio: A capable free scheduler for construction teams needing CPM, resources, and open file exchange. Ranked #1 of 26 in Construction Scheduling Software by our editors (9.4/10); pricing: Free plan; best for teams needing free construction scheduling software.

9.4/10Editor score
Open Planner Studio9.4 Visit Open Planner

At a glance

  • Editor score
    9.4 / 10
  • Pricing
    Free plan
  • Best for
    Teams needing free construction scheduling software
  • Free plan
    Yes
  • Paid from
    Free
  • Critical path
    Yes
  • Facts checked
    22 Sep 2026
Open Planner Studio screenshot
  • Where it wins

    • Free, open-source package with no subscription or per-seat licence fees
    • CPM, float, deadlines, resources, histograms, levelling, and baselines
    • IFC, CSV, MS Project, and Primavera P6 interoperability
  • Where it doesn't

    • No mobile apps; access is through the browser or desktop platforms
    • The only named plan is the free, open-source package
    • The built-in AI assistant is described for reading and editing schedules

Our verdict on Open Planner Studio

Open Planner Studio is an open-source construction planning application for building, infrastructure, and civil-engineering projects. It is aimed at teams that need structured scheduling rather than a basic task list, with interactive Gantt charts, automatic critical-path calculation, resource planning, progress tracking, and construction-specific calendars. The application runs in a browser and on Windows, macOS, and Linux, giving teams several desktop and web access options.

Its strongest fit is interoperability across established planning workflows. IFC 4.3 is the native schedule format, while import and export support covers IFC, CSV, MS Project XML, and Primavera P6 XML. Native MS Project MPP import is also available. That combination makes the product relevant to contractors, planners, and project teams exchanging schedules between construction, project-management, and open-model environments. Resource features extend beyond task dates: the software covers labour, equipment, and subcontractors, with resource histograms and automatic levelling for capacity planning.

The published plan is free and open source, with no subscription or per-seat licence fees. Its feature set includes baselines, progress tracking, hourly planning, and a built-in MCP AI assistant for reading and editing schedules. Teams choosing Open Planner Studio should be comfortable with an open-source product and should value construction-focused planning, critical-path analysis, and file compatibility. It is less suitable for organizations specifically seeking mobile apps or a range of paid service tiers.

Your product? Our editors can test Open Planner Studio in depth and publish a review, labelled as paid · from $149/mo →

Open Planner Studio pricing

Plans Free planFree Free to use — no paid tier required for the core job.
See plans on open-aec.com

All 1 Open Planner Studio plans and prices →

Open Planner Studio fact sheet

Free planYes
Paid fromFree
Critical pathYes
Gantt chartsYes
Resource planningYes
Schedule templatesNot verified
Mobile appsNone
Project limitNot verified
DeploymentDesktop
PlatformsWeb, Windows, macOS, Linux
SupportDocs
Built forSolo, Small business, Mid-market, Enterprise (editorial estimate)
Integrations4 integrations: IFC, CSV, Microsoft Project, Primavera P6
PricingFree plan (source)
Websiteopen-aec.com
Facts checked22 Sep 2026

Open Planner Studio integrations

Open Planner Studio lists 4 integrations on its own site.

  • IFC
  • CSV
  • Microsoft Project
  • Primavera P6

Alternatives to Open Planner Studio

See all Open Planner Studio alternatives →

Open Planner Studio vs the competition

Compare Open Planner Studio with any tool side by side →

Also Ranked In

Open Planner Studio is ranked in 2 of our directories.

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Featured on iTechGuides

Featured on iTechGuides — Open Planner Studio 9.4/10

Open Planner Studio is listed in our Construction Scheduling Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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