A radical collaboration platform.
Built for the teams
obsessed with growth.
100% of our effort goes into your team’s growth.
Humans and AI, one mind. Every decision in the open.
Free. Open source. No seats, no tiers, no upsells.
Your growth is the only metric we care about.
Features don’t win.
Focus does.
One more clever feature in tool seven won’t save you. What matters is how focused your team is — and how sharp your AI gets to be when it actually sees the full picture. Each tool you add is another open tab, another notification, another silo your AI can’t see into.
Slack
- Chat & threads
- Canvases (docs, apparently)
- Huddles
- AI summaries
- Workflows
Linear
- Issues & projects
- Docs (wait, again?)
- Threads on issues
- AI summaries
- Roadmaps
Notion
- Docs & wikis
- Databases (ticket-shaped)
- Comments (thread-shaped)
- AI assistant
- Projects
…and don’t get us started on —
fig. 1 — what the fuck
Every message public.
Even the hard ones.
The Manifesto
One brain. Radical transparency. Every conversation visible to the entire team. This isn’t a bug. It’s the entire point.
Zero DMs, Zero Private Channels
Every message is public within the team. No DMs, no private channels, no backdoor politics. Even the hard ones stay out in the open. This is how AI gets 100% context.
One Brain
Your team is not a collection of individuals with separate inboxes. It's one organism with one shared mind. Decisive treats it that way.
100% AI Context
When nothing is hidden, AI doesn't guess — it knows. Every conversation, every decision feeds the system. Zero blind spots.
Radical Transparency
Today this feels experimental. Tomorrow it will be standard. No information hoarding, no "let me loop you in" — everyone is already in.
Trust-Only Teams
You hire people you'd trust with your life. Bad players get fired, no drama. This platform is built for that level of trust.
Stay Lean, Scale Massive
Small teams, enormous output. Built for teams that stay lean and grow to massive scale. If you want to hire like crazy — this is not for you.
100% Open Source
No vendor lock-in. No black boxes. Every line of code is public, auditable, and yours to run. If we disappear tomorrow, your team keeps working.
built on github + claude
Self-host in 4 steps
Clone the repository
git clone https://github.com/decisive-labs/decisiveConfigure your environment
cp .env.example .envStart the stack
docker compose up -dYou're live
Open http://localhost:3000Full docs, Kubernetes & Terraform guides included.
view on githubBack the Mission
Decisive is free, open source, and always will be. No tiers, no upsells, no data for sale. If you believe in what we’re building, back us — every euro goes into engineering.
Early Access
Not for everyone. For teams that stay lean, hire only people they trust, and want to scale to
the moon.
Coming live 2026
Join Decisive
We review every application. We’ll contact you via email.
Built in the open.
By a few humans
and a lot of AI.
Not ad-supported. Not tracked. Not for sale. If something’s useful, take it. If something’s broken, fix it — the repo is yours.