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An open-source classroom whiteboard with shared rooms and private student canvases.

An open-source checklist for the stages of a UX project

Runs open models locally and exposes a developer interface for using them from apps and coding tools.

An open-source notebook with a freeform canvas, handwriting, Markdown, and local files.

CC0 artwork images with collection data for reuse

Manage a structured to-do list from the command line with projects, priorities, tags, and reports.

Plan agile work with Scrum and Kanban boards in an open-source, self-hosted tool.

Repaint selected 3D strokes and keep an editable sketch alongside exported geometry

Run a lightweight self-hosted Kanban board with task automation and WIP limits.

A business messenger for one-to-one, private group, and organization-wide open chats.

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

Organize work and personal life with tasks, projects, areas, recurring workflows, and a day planner.

Free art and archive images from Getty’s collections

Develop resource-conscious firmware for embedded boards with a real-time operating system and Zephyr SDK.

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.

Free envelope budgeting with local files and optional bank synchronization