[charts] Implement Gantt Chart

## Survey We want to understand your use cases better, so we're collecting your requirements for our Gantt Charts in a mini-survey. Please share what you need: https://tally.so/r/m6MBNo ## Summary This is about supporting people to implement Gantt Charts and the corresponding methodology: For something that is "lighter"; please refer to the Timeline component: #20595. ## Benchmarks Public, read only: https://mui-org.notion.site/Gantt-Chart-component-e0014e4a55ae44fe901d575b1886e78e Internal, write & read: https://www.notion.so/mui-org/Gantt-Chart-component-e0014e4a55ae44fe901d575b1886e78e ## Requests - https://www.notion.so/mui-org/2e8cbfe7b6608012bbd5f29e4fef8bbc - https://mui.zendesk.com/agent/tickets/20549 - https://www.notion.so/mui-org/cfce9cf916cf49adb1be9109eb51d216 - https://www.reddit.com/r/reactjs/comments/12b9y2m/does_anyone_know_a_good_free_gantt_chart_library/ - https://mui.zendesk.com/agent/tickets/26925 ## MUI X Gantt chart https://mui.com/x/react-charts/gantt/

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FL score

68

out of 100

Verdict

BUILD

high confidence

Competition

9

competitors found, emerging market, funded players

Trend

8 community mentions

A complex, developer-focused Gantt chart component with real-time updates for modern web apps, tackling existing solutions' complexity, but faces high build effort and crowded market.

The pain

Project managers struggle with traditional Gantt charts that are hard to update in real-time, become messy with many dependencies, and have steep learning curves. Developers also find it challenging to integrate high-quality, customizable, and affordable Gantt chart libraries into their applications.

The gap

While many full-suite project management tools exist, they are often criticized for being overly complex, expensive, or lacking seamless real-time collaborative features. There's a gap for a robust, developer-friendly, and highly performant Gantt chart component (or library) that specifically addresses real-time updates, intuitive dependency management, and a simplified user/developer experience, potentially at a competitive price point, especially for those building on specific modern frameworks.

Build angle

Develop a lightweight, highly performant Gantt chart component/library for a specific modern web framework (e.g., React), focusing on exceptional real-time collaboration, intuitive dependency visualization, and simplified integration. Market it directly to developers and internal tools teams who are frustrated with the complexity and cost of existing options.

Strengths

  • Addresses a real and significant pain point for project managers and developers.
  • Large and growing market for project management software.
  • Specific user frustrations with existing tools (complexity, real-time updates, learning curve) provide clear opportunities for improvement.
  • The demand for a 'good free Gantt chart library' indicates a need for developer-friendly options.

Risks

  • Extremely crowded market with well-funded incumbents offering comprehensive solutions.
  • High technical complexity for a solo builder to create a truly superior and performant real-time Gantt chart component.
  • Monetization challenge due to prevalence of free/freemium models and existing high-value competitors.
  • Difficulty in achieving strong differentiation that justifies switching from established tools/libraries.
  • Go-to-market against established players requires significant marketing effort and trust building.

Next steps

  1. Conduct in-depth interviews with developers and project managers about their exact pain points with existing Gantt chart *components* and libraries, not just full PM tools.
  2. Validate pricing expectations for a component/library vs. full SaaS, especially considering the demand for 'free' options.
  3. Build a proof-of-concept of the core, unique 'real-time update' or 'intuitive dependency' feature to gauge technical feasibility for a solo builder.
  4. Identify the absolute narrowest, most desperate niche (e.g., 'Gantt chart for React internal tools with live resource allocation') to target for an MVP.

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