Flowlu ◆
Flowlu is an all-in-one business platform combining CRM, project management, invoicing, finance, and a knowledge base.
Free·from $9/user/mo
About Stacks
What is Stacks?
Stacks is a beautiful, all-in-one work and project management tool designed for everyone—from freelancers to large teams. It is self-hosted by default, meaning your data stays local on your device or on your own private server, giving you complete control and privacy. With Stacks, you don't need to adapt to rigid workflows; it adjusts to how you work.
What problem does it solve?
Most project management tools store your data on third-party servers, exposing it to potential breaches or misuse. Stacks eliminates this concern by keeping data secure and local. It also solves workflow fragmentation by combining projects, tasks, notes, contacts, reports, and automation into one compact, high-performance platform.
Who is it for?
Stacks is ideal for privacy-conscious professionals, small-to-medium businesses, and teams that want a customizable, offline-capable PM tool. It is not for organizations that require a fully managed cloud-hosted solution out of the box—although optional paid server management is available.
Real use cases
Freelancers can manage clients, task assignees, and deadlines in one place. Agencies can use Kanban boards, tables, or calendar views to track multiple projects. Teams can automate repetitive actions (e.g., assign tasks when moved to another column) and generate reports to identify bottlenecks, all while working offline or online.
Key features
- Kanban Boards, Tables, Lists & Calendar — Visualize and manage projects any way you prefer.
- Task Automation — Automate repetitive actions like assigning or changing task properties when a task is moved or completed.
- Docs & Files — Built-in note-taking system with support for any content type; all files stored locally or on your private server.
- People & Contacts — Organize clients and assignees directly within projects.
- Reports — Compare numerical data across projects to identify inefficiencies or delays.
- Offline & Online Mode — Work in disconnected environments or online with seamless sync.
- Free Lifetime Updates — Receive comprehensive updates for life at no extra cost.
SaaSpartout Score
7.1
/10
Editorial score from our review methodology — not user ratings.
Stacks Pricing
Stacks pricing: Free download (self-hosted); optional paid server management. Billing model: Free.
Free (Self-Hosted)
Download Stacks for free and host it locally on your device or your own server. Includes core features: projects, tasks, Kanban boards, docs, contacts, reports, offline mode, and free lifetime updates.
Optional Paid Server Management
For teams that want fully managed support, Stacks offers optional paid server management services (including task-based services). Exact pricing not publicly listed on site; contact Stacks for details.
All plans come with free standard hosting support. No credit card required to start with the free download.
Frequently asked questions
Is Stacks free?
Yes, Stacks is free to download and self-host on your own device or server. Optional paid server management services are available.
How much does Stacks cost?
The core software is free. Paid server management (fully managed support and task-based services) is optional—pricing is available upon request.
Who is Stacks best for?
Stacks is best for privacy-focused individuals and teams who want a customizable, self-hosted project management tool with offline capabilities.
Does Stacks work offline?
Yes, Stacks supports both offline and online modes, giving you flexibility to work in disconnected environments or with internet connectivity.
What are the top alternatives to Stacks?
Alternatives include other self-hosted PM tools like OpenProject, Taiga, or Plane; and cloud-based tools like Asana, Trello, or ClickUp (which lack the same privacy-first approach).
What is the main limitation of Stacks?
Stacks is self-hosted by default, which may require technical setup. It does not offer a managed cloud option out of the box, though paid server management is available as an add-on.
