BuildGantt

Embeddable Gantt charts for no-code construction PM SaaS

Score: 8.0/10ArgentinaMedium BuildReady to Spawn
Brand Colors

The Opportunity

Problem

Solo founders building construction project management tools can't implement complex scheduling and material tracking using no-code platforms.

Solution

BuildGantt provides drag-and-drop Gantt scheduling that embeds seamlessly into Bubble, Adalo, or Softr apps via a simple iframe or JS snippet. Solo founders get complex dependency-based scheduling without backend code. Track milestones, delays, and critical paths visually for construction projects.

Target Audience

Solo indie hackers and bootstrapped founders developing SaaS for construction project management

Differentiator

One-click embed with no-code platform auto-sync, purpose-built for indie hackers avoiding custom dev.

Brand Voice

professional

Features

Drag-and-Drop Gantt

must-have20h

Visual timeline editor with task dependencies and milestones

Iframe Embed

must-have8h

Copy-paste embed code for no-code platforms

Task Dependencies

must-have15h

Link tasks with FS/SS/FF/SF relations and lag times

Critical Path Highlight

must-have10h

Auto-identify and highlight project critical path

Project Export

must-have5h

PDF/CSV export of schedules

Baseline Comparison

nice-to-have8h

Compare planned vs actual timelines

Resource Leveling

nice-to-have12h

Auto-adjust for resource overloads

Mobile View

nice-to-have6h

Responsive Gantt for phones

Total Build Time: 84 hours

Database Schema

projects

ColumnTypeNullable
iduuidNo
user_iduuidNo
nametextNo
start_datetimestampNo
created_attimestampNo

Relationships:

  • user_id -> users.id

tasks

ColumnTypeNullable
iduuidNo
project_iduuidNo
nametextNo
starttimestampNo
duration_daysintNo
dependency_iduuidYes

Relationships:

  • project_id -> projects.id
  • dependency_id -> tasks.id

embeds

ColumnTypeNullable
iduuidNo
project_iduuidNo
embed_codetextNo
viewsintNo

Relationships:

  • project_id -> projects.id

API Endpoints

POST
/api/projects

Create new project

🔒 Auth Required
POST
/api/projects/:id/tasks

Add task to project

🔒 Auth Required
GET
/api/embeds/:projectId

Get embed code

🔒 Auth Required
GET
/api/public/gantt/:embedId

Render public Gantt

Tech Stack

Frontend
Next.js 14 + Tailwind + Shadcn/ui + React Flow
Backend
Supabase Edge Functions
Database
Supabase Postgres
Auth
Supabase Auth
Payments
Stripe
Hosting
Vercel
Additional Tools
Resend for emails

Build Timeline

Week 1: Core DB + Auth

20h
  • Supabase setup
  • User auth
  • Project CRUD

Week 2: Gantt Editor

25h
  • Drag-drop UI
  • Task dependencies

Week 3: Embed System

20h
  • Iframe generator
  • Public render

Week 4: Polish + Payments

15h
  • Exports
  • Stripe integration
  • Landing

Week 5: Testing + Deploy

10h
  • E2E tests
  • Launch prep
Total Timeline: 5 weeks • 90 hours

Pricing Tiers

Free

$0/mo

10 tasks/project

  • 1 project
  • Basic embed

Pro

$40/mo
  • Unlimited projects
  • Dependencies
  • Exports

Enterprise

$99/mo
  • All Pro
  • Custom branding
  • Priority support

Revenue Projections

MonthUsersConversionMRRARR
Month 12010%$80$960
Month 615015%$675$8,100

Unit Economics

$30
CAC
$480
LTV
5%
Churn
92%
Margin
LTV:CAC Ratio: 16.0xExcellent!

Landing Page Copy

Embed Pro Gantt Charts in Your No-Code Construction SaaS

Solve scheduling complexity without code – drag-drop, dependencies, critical path in one embed.

Feature Highlights

Seamless no-code integration
Dependency management
Critical path auto-highlight
Unlimited projects on Pro

Social Proof (Placeholders)

"'Transformed my Bubble app!' - Indie Hacker"
"'Critical path saved weeks' - Solo Founder"

First Three Customers

Post in Indie Hackers forum and r/nocode with demo embed video targeting construction SaaS builders; DM 10 active no-code PM tool makers on Twitter; Offer free Pro access for feedback via Product Hunt comments.

Launch Channels

Product HuntIndie Hackersr/nocoder/SaaS

SEO Keywords

no-code gantt chart embedconstruction scheduling widgetbubble gantt integration

Competitive Analysis

TeamGantt

teamgantt.com
$49/mo
Strength

Advanced Gantt features

Weakness

No easy no-code embeds

Our Advantage

One-click iframe for Bubble/Softr

🏰 Moat Strategy

Embed API locks in users; data on scheduling patterns for AI upsells

⏰ Why Now?

No-code adoption exploding in niche SaaS; construction digitizing post-pandemic

Risks & Mitigation

technicalmedium severity

Embed sync issues

Mitigation

Webhooks + polling

marketlow severity

Low adoption by no-coders

Mitigation

Targeted outreach

executionmedium severity

Timeline slip

Mitigation

Weekly milestones

Validation Roadmap

pre-build3 days

Interview 5 indie hackers

Success: 3 express interest

mvp14 days

Build embed demo

Success: 2 integrations

launch7 days

PH launch

Success: 50 signups

Pivot Options

  • General no-code Gantt
  • Full construction PM embed suite

Quick Stats

Build Time
90h
Target MRR (6 mo)
$1,000
Market Size
$50.0M
Features
8
Database Tables
3
API Endpoints
4