Reinventing The Wheel. With Freedom For You.

Build Full-Stack Apps.
Own The Code. Pay Zero Markup.

Forget expensive credit-based builders. Bring your own Gemini Key and generate unlimited apps. One-click Supabase backend. No lock-in code export.

Start Building Free Report Bug / Feature
BYO API Key
Pay $0 markup on AI
Deploy to Netlify
One-click Launch
Supabase Native
Own your backend
Founder OS
Tasks, Docs, Finance
Shape Your Vision
Structure your idea
First One Free
Full platform access
VC Analyst
Get investment scores
Inner Core Chat
Chat with your startup
INTERFACE

Built for Speed & Clarity

Experience a fluid interface designed for founders who move fast.

Dashboard
Project Overview
Tasks Kanban
Roadmap & Milestones
Ideation Tools
Team Management
AI Co-Founder Chat
VC Analyst Mode
THE PROCESS

From Idea to Empire

CoFounter guides you through a proven 3-step framework to build your startup.

01

Ideate & Validate

Capture your lightbulb moment. Use our AI to refine your problem statement and identify your unfair advantage.

Problem
Solution
02

Plan the Tech

Don't just code. Architect. Map out your database, choose your stack, and log critical decisions in the Tech Roadmap.

03

Execute & Iterate

Turn plans into action. Manage sprints in the Kanban board, upload assets, and sync with your co-founders daily.

Sprint 1 Complete
NEW: Full-Stack AI App Builder

The Design-to-Code
AI Orchestrator.

Rapidly design, develop, and deploy full-stack web applications. We don't charge for AI usage. Bring your Gemini API key and build at cost. From UI prompts to complex Supabase backend architecture—built automatically.

Backend Auto-Pilot

AI seamlessly integrates with Supabase to create schemas, auth, and APIs automatically.

No Lock-in Code Export

Download your entire project as a ZIP with frontend code, backend setup, and assets.

Free & Transparent

Bring your own Gemini API key for complete transparency and zero hidden costs.

Production Ready

Validated outputs ensure consistent design, secure data binding, and scalability.

CoFounter AI Canvas Builder

Integrated Features

Stop paying for Jira, Notion, and Linear. We built the stack founders actually need.

Multipreneur Mode

Manage multiple projects at a high level. Get a quick snapshot of where every startup stands instantly.

Project A
Project B

Ideation & Vision

Structured frameworks to document your problem statement, solution, and business model canvas.

Technical Roadmap

Interactive timelines that map your tech stack decisions to business milestones.

Co-Founder Sync

Manage permissions and assign tasks with granular access control.

Finance Flow

Simple expense & revenue tracking for quick financial insights.

Tech Decisions

Log critical architecture choices and maintain a living decision record.

Task Lifecycle

A kanban-style execution engine built for speed. Attach files, set priorities, and link tasks to your master vision.

  • Sprint Planning
  • File Attachments
  • Real-time Updates
High
Med

Document Vault

Centralized storage for pitch decks, legal contracts, and brand assets.

Team Chat

Real-time messaging channels dedicated to your core team.

VC Analyst Mode

Get a rigorous Investability Score from an AI Venture Capitalist.

AI CORE

Your startup now has a brain.

CoFounter includes powerful AI agents that don't just help you write—they help you think, plan, and negotiate.

Vision Filler

Stuck on wording? Our AI expands your rough notes into investor-ready pitch text.

Inner Core Chat

Chat with your startup. Ask: "What's missing from our roadmap?"

AI Idea Architect

Transform vague concepts into concrete plans. Our AI structures your raw ideas into viable startup blueprints.

CF
CoFounter AI Online

I analyzed your competitor list. You missed a key differentiator in "User Privacy". Should we add that to the pitch deck?

Yes, add it to the Value Proposition section.

Building for the Future

Q1 Foundation
NOW AI Architect
Q3 Launch Platform
Q4 Growth Engines
PRICING

Simple, Transparent Pricing

Start for free, upgrade as you grow.

Builder (First Project)

$0 / forever

Bring your own Gemini Key. Build freely.

  • 1 Free Project Slot
  • Unlimited AI Generations (BYO Key)
  • Full Supabase Access
  • Everything Included:
  • AI Co-Founder & Vision Architect
  • AI VC Analyst & Investability Score
  • Technical Roadmap
  • Finance & Expense Tracking
  • Document Vault & Assets
  • Multipreneur Dashboard
  • ...and many more
Get Started
MOST POPULAR

Multipreneur

$14 / project / month

For serial builders managing multiple startups.

  • Unlimited Projects
  • Unlimited Team Members
  • Everything Included:
  • AI Co-Founder & Vision Architect
  • AI VC Analyst & Investability Score
  • Technical Roadmap
  • Finance & Expense Tracking
  • Document Vault & Assets
  • Multipreneur Dashboard
  • ...and many more
Upgrade Now
OUR STORY

Built by Founders, for Founders

We suffer from "Serial Idea Syndrome." We’d brainstorm five brilliant startups before lunch, start building three, and... finish none. We got tired of watching our potential unicorns die in the graveyard of forgotten notes.

We built CoFounter out of self-defense—to stop wasting time and actually ship. It turned our chaos into a structured empire. It saved our sanity. Maybe it’ll save yours too.

ALL PLATFORMS

Manage your startup from anywhere.

Whether you're in a pitch meeting or on the go, CoFounter keeps your vision in your pocket.

Use Browser Launch Web App
COMMUNITY

Public Roadmap & Issues

See what we're working on and what the community is reporting.