Penpot is an open-source, web-based design and prototyping tool built to align designers and developers with code-friendly, collaborative workflows. It is geared to individual makers, small product teams, and organizations that prefer open-source governance. Penpot reduces handoff friction by exposing styles and code-like outputs, supports real-time collaboration and commenting, and

Cal.com is an open-source, developer-first scheduling platform that provides customizable booking, payments, video conferencing, and API/webhook infrastructure for individuals and teams. It replaces ad-hoc scheduling with programmable, white‑label meeting pages, built-in Cal Video and Stripe integrations, and embed components you can extend, host yourself, or run in

LibreOffice is a free, open-source office suite for creating and editing documents, spreadsheets, presentations, graphics, databases and formulas while keeping files local and using open standards (ODF). It is a desktop-first productivity suite (Writer, Calc, Impress, Draw, Base, Math) aimed at replacing proprietary office apps on Windows, macOS, and Linux.

Rallly is a lightweight group scheduling app that creates shareable availability polls so groups can quickly pick meeting or event times. It makes scheduling fast and simple with short, vote-based polls that reveal the best time. It targets privacy-conscious individuals, small teams, communities, and side-projects that need low-cost, low-friction scheduling.

AFFiNE is an open-source (MIT) unified workspace that combines documents, tasks, and an edgeless whiteboard with real-time collaboration. It replaces tool sprawl by letting teams plan, write, assign, and brainstorm together in one app, reducing context switching. It suits individuals and small teams needing a single workspace, plus teams that

Reactive Resume is an open-source, privacy-first resume builder that can be used in the browser or deployed on your own infrastructure. It provides a polished, drag-and-drop editor, multiple templates, real-time previews, and export options (PDF/Word/print-ready), aimed at creating professional resumes without vendor lock-in. The project is suited to

EasyAppointments is an open-source, self-hostable appointment scheduling system that manages services, staff, bookings, notifications, and calendar sync. It targets organisations that want a lightweight PHP + SQL booking app they can run on their own infrastructure and embed into existing sites (including WordPress). The product suits small-to-medium appointment-based businesses and developers

Joplin is an open‑source, cross‑platform note‑taking and personal knowledge management app built around Markdown. It offers desktop, mobile and command‑line clients, a browser web‑clipper, plugin support, end‑to‑end encryption (E2EE), and multiple sync backends — including a self‑hostable component called Joplin Server. This post

Vikunja is an open‑source, self‑hostable task and project management platform that provides list, Kanban, table and Gantt views, collaboration primitives, CalDAV syncing and a public REST API. It’s intended for people and teams that want control over their task data and prefer running services on their own

Memos (usememos) is an open-source, self-hosted note-taking and knowledge-management app that is Markdown-first and designed for full data ownership. It combines a Go backend and React frontend to provide a lightweight, performant platform for plain-text notes, code snippets, tags, pinning and full-text search. It targets privacy-conscious individuals, developers and small

Grocy is an open‑source, web‑based, self‑hosted groceries and household management app (PWA). It centralizes pantry and fridge inventory, meal planning, shopping lists, chores and equipment maintenance, and exposes a REST API for integrations. The project targets self‑hosters, home‑automation enthusiasts and households that want privacy and

Leantime is an open‑source project and product management platform that blends lean, agile, and design‑thinking to take teams from ideation through planning and execution. It offers multiple task views, roadmap timelines, and structured ideation boards in a single tool. It’s aimed at small to mid‑sized engineering

Kimai is an open-source, web-based time-tracking platform that combines timesheets, timers, reporting, and invoicing in one system. It supports multi-user access with roles, integrates with identity providers, and exposes a REST API for automation and custom workflows. It suits freelancers, consultants, and small-to-medium teams that need accurate time capture, project/

Ryot is a web-first personal tracking platform that consolidates media consumption, habits, fitness, and other personal data into one place. It emphasizes automation, analytics, and customizable dashboards so you can replace scattered spreadsheets and notes with a single system. It’s aimed at power media consumers, quantified-self enthusiasts, and anyone