Plan at the
speed of thought

Keyboard-first Gantt charts with Mermaid syntax.
Your fingers never leave the keyboard.

Planning
Development
Launch
Apr 2026May 2026Jun 2026Jul 2026W16W17W18W19W20W21W22W23W24W25W26W27W28User ResearchDesign SprintFrontend BuildAPI Development

Code ↔ Visual

Write Mermaid syntax, see the timeline. Edit visually, export as code.
Bidirectional sync keeps everything in harmony.

chart.mmd
|
Visual Output
Research
Design
Frontend
Backend
Deploy

Why Mermaid Gantt?

Keyboard-First

Navigate, edit, and manage tasks with your keyboard. Mouse optional.

Mermaid Syntax

Import and export standard Mermaid Gantt charts. Version control friendly.

Visual Editing

Drag to resize, click to edit. See your timeline come to life.

Offline-First

Your data stays in your browser. No signup, no cloud, complete privacy.

The Honest Truth

Mermaid vs Paid Gantt Tools

A practical comparison for teams evaluating their options.

Free Mermaid
MS Project
GanttPRO
TeamGantt
Time to First Chart
~5 min
1-4 hours
~20 min
~15 min
Cost
$0
$30+/user/mo
$8+/user/mo
$49+/mo
Signup Required
No
Yes
Yes
Yes
Embeds in Docs
Version Control
Vendor Lock-in
None
High
Medium
Medium

Why Teams Choose Mermaid

01

No Setup

No account, no installation. Use mermaid.live, VS Code, or any Markdown editor.

02

Lives With Your Code

Embed in GitHub READMEs, Notion, Confluence, or wikis. The chart stays with the project.

03

Version Controlled

Diff your timelines. Review changes in PRs. Roll back if needed.

04

Free & Open Source

No trials, no seat limits, no feature gates.

Annual Cost (10-person team)

Mermaid
$0
GanttPRO
$960–$2,400
TeamGantt
$588–$1,188
MS Project
$3,600–$6,600

When Paid Tools Fit Better

Resource workload balancing GanttPRO or MS Project
Real-time collaborative editing Any paid tool
Enterprise SSO/compliance MS Project
Critical path analysis GanttPRO or MS Project
Non-technical stakeholders TeamGantt or GanttPRO

Ready to plan?

No signup. Your data stays local. Open source.

Start Planning