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Teach with a free, open-source interactive whiteboard for schools and universities.

Run a self-hosted team wiki with nested pages, databases, permission-aware search, and exportable Markdown.

A free, open-source engine and editor for creating 2D and 3D games across desktop, mobile, and web targets.

Continuously fuzz accepted open-source projects to find crashes and other input-handling bugs.

Free open-source desktop GUI prototyping

Build a self-hosted project and task-management application around configurable data and workflows.

Self-host an XMPP server for instant messaging and group chat.

Run configurable pricing, risk and valuation-adjustment studies

Evaluate policy-as-code decisions for CI/CD pipelines and other systems.

Open source platform for building multi-task AI agents without code

Organize team and personal projects with Kanban cards inside a Nextcloud environment.

A shared bill ledger for groups that trust each other's edits

Build interactive terminal interfaces in Rust with reusable widgets and responsive layouts.

Create and sync tasks through a self-hosted Nextcloud account with CalDAV-compatible clients.

Free art and archive images from Getty’s collections

Build and train Python machine-learning models with tensor operations, neural-network layers, and automatic differentiation.

A self-hosted note library with Markdown, boards, daily notes, and shared workspaces.

Monero desktop wallet with transaction review and Tor controls

Custom-period budgets, spending goals and optional Google Drive sync

Scans infrastructure-as-code and related artifacts for cloud misconfigurations and security policy failures.

Orchestrate Terraform and OpenTofu projects while reusing configuration across infrastructure units.

Open source platform for building AI agents and LLM workflows

An open-source time tracker with projects, clients, invoicing, reports, and a hosted option.

An open-source collaborative Markdown editor for notes, diagrams, and presentations.