The archive · Developer & Business Tools · Strategic decision · 2014-2024
Mermaid Chart bets text-based diagrams can go enterprise; 8M users, $7.5M seed
Mermaid's backers bet its 8M-user open-source community will pay for enterprise collaboration; $7.5M seed from M12 and Sequoia.
Mermaid Chart
What the business is
Mermaid Chart commercializes the Mermaid open-source diagramming project, selling hosted text-based diagramming, a visual editor, AI generation, and enterprise collaboration tools.
Starting capital：$7.5M seed (Mar 2024) plus an earlier 2022 seed
How it started
Mermaid began in 2014 when software architect Knut Sveidqvist lost a Microsoft Visio file, had to redraw everything, and decided diagrams should live in text like markdown. He open-sourced the project; it became one of the most-used diagramming tools in code documentation, supported natively by GitHub and GitLab.
What happened
In 2022, Open Core Ventures approached Sveidqvist about co-founding a company around the project, pairing him with CEO Andrew Firestone. Mermaid Chart launched on Product Hunt in Oct 2023 and raised $7.5M in seed funding in March 2024 from Microsoft's M12, Sequoia Scout, OCV, Streamlined Ventures and others, launching enterprise products: a visual editor and an AI diagram generator.
How it ended up
Still running and scaling: the company is shipping enterprise features - on-premise deployment for high-security organizations, automated documentation, AI diagramming - while remaining the commercial arm of the open-source project.
Background
Mermaid started in 2014 as a personal fix: Knut Sveidqvist lost a Microsoft Visio file, had to redraw everything, and concluded diagrams should be written as text, the way markdown replaced formatted documents. He open-sourced the project, and it became a standard for code documentation, supported natively in GitHub and GitLab.
By 2023 the open-source project had more than 8 million users and nearly 65,000 GitHub stars. Open Core Ventures, the firm of GitLab founder Sid Sijbrandij, approached Sveidqvist in 2022 about turning that community into a company, pairing him with serial entrepreneur Andrew Firestone as CEO.
Mermaid Chart launched its hosted platform on Product Hunt in October 2023, then raised a $7.5M seed round in March 2024 from Microsoft's M12, Sequoia Scout, Open Core Ventures, Streamlined Ventures, and others. The company's bet: add a visual editor and AI prompt-to-diagram generation so non-developers could use Mermaid too, then sell enterprise collaboration, security, and on-premise products to the businesses that already had Mermaid in their docs.
As of early 2024 the company is scaling, shipping enterprise products and an on-premise package, while staying the steward of the open-source project it grew from.
What has to be true
- Text-based diagramming had already won in code documentation, so the wedge - developers who write Mermaid in markdown every day - was proven and free.
- GitHub and GitLab native support gave the project distribution no startup could buy, which is why M12 and Sequoia invested at seed stage.
- The visual editor and AI generator attacked the real barrier: Mermaid's syntax scared non-developers, who are the majority of diagram users in enterprises.
- The open-core model let the company keep the community's goodwill while selling the hosted and compliance features only enterprises need.
What can be applied
A widely adopted open-source project de-risks distribution: the hard part is converting a free-expecting community into paying enterprises, which needs non-developer entry points like a visual editor.
Aftermath
As of March 2024 Mermaid Chart is alive and scaling: it raised $7.5M, launched its first enterprise product line (visual editor, AI diagram generation, collaboration tools), and announced an on-premise package for high-security organizations. The open-source project continues to grow under the company's stewardship. The open question is whether enterprises will pay enough for hosted diagramming to sustain the company, given how freely the underlying project is available.
Sources
- Mermaid Chart, a Markdown-like tool for creating diagrams, raises $7.5M
- Mermaid Chart Raises $7.5M to Reinvent Visual Collaboration for Enterprises
- Mermaid AI - Product Hunt Launch Overview
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