# collaboration

Reactive Python notebooks that version with git and deploy as apps

Marimo is a reactive Python notebook environment with 20,000+ GitHub stars and $4M seed funding. Unlike Jupyter, marimo notebooks automatically update dependent cells when values change, version cleanly with git as pure Python files, and deploy directly as interactive web applications without conversion steps.

Open-source low-code platform — build and deploy internal tools with minimal code.

ToolJet is an open-source low-code framework for building and deploying internal tools. Visual app builder with 50+ UI components, connects to databases, APIs, SaaS tools, and cloud storage. Supports JavaScript and Python. 30K+ GitHub stars. Self-hostable alternative to Retool.

Open-source low-code platform for building internal tools and business applications.

Appsmith is an open-source low-code platform for building internal tools, admin panels, and dashboards. Drag-and-drop UI builder with 45+ widgets, connects to any database or API. Supports JavaScript for custom logic. Self-hostable alternative to Retool with 35K+ GitHub stars.

Visual collaboration platform for distributed teams to brainstorm, plan, and design together.

Miro is the leading online collaborative whiteboard platform used by 80M+ users worldwide. Enables distributed teams to brainstorm, diagram, plan sprints, run workshops, map user journeys, and design systems in real time. Integrates with Jira, Slack, Notion, Figma, and 200+ tools. Offers AI-powered features for mind mapping and content generation.

Build internal tools remarkably fast with a visual builder and code when needed.

Retool is the leading low-code platform for building internal tools, admin panels, and dashboards. Used by 27,000+ companies including Amazon and DoorDash. Drag-and-drop UI components connect directly to databases, APIs, and services. Supports custom JavaScript and Python for complex logic. Reduces internal tool development time from weeks to hours.

Markdown-based project management for AI agents

A tool for managing project collaboration between humans and AI agents in a git ecosystem. Uses markdown files as the source of truth for backlogs, tasks, and progress tracking. Keeps everything version-controlled and transparent, making it easy to assign work to AI agents and review their contributions alongside human commits.

Task management for busy professionals

Clean and powerful task manager with natural language input, recurring tasks, priority levels, projects, labels, and filters. Integrates with Google Calendar, Slack, and dozens of other productivity tools. Karma system gamifies task completion, while AI-powered task suggestions and smart scheduling help teams and individuals stay organized without friction.

Lightweight polyglot editor by JetBrains

All-in-one workspace for notes, docs, wikis, project management, and databases. Known for its block-based editor that combines text, tables, kanban boards, calendars, and embedded content in flexible page layouts. AI features assist with writing, summarization, and search. The most popular knowledge management tool for teams that need a single platform for documentation and lightweight project tracking.

Instant cloud dev environments with live collaboration

Cloud-based development environment providing instant sandboxes for web projects with live collaboration. Features branching like Git for dev environments, shareable previews, and deep integration with GitHub. Ideal for rapid prototyping, code reviews, and onboarding new team members who need a ready-to-go development environment without local setup or configuration delays.

Open-source design and prototyping

API testing and monitoring tool designed for simplicity and speed. Build, test, and document APIs with an intuitive interface, automated testing, and CI/CD integration. Features mock servers, load testing, and team collaboration. A modern Postman alternative that focuses on developer experience with a cleaner UI, faster performance, and a more streamlined workflow for API development.

Work management for teams

Professional design tool for creating user interfaces, prototypes, and design systems. Known for real-time collaboration, auto-layout, and an extensive plugin ecosystem. The industry standard for UI/UX design, Figma connects design and development workflows through Dev Mode, design tokens, and seamless handoff features that keep teams aligned from concept to code.

Async video messaging for teams

AI-powered design tool that generates production-ready UI components from text prompts or screenshots. Creates responsive layouts with clean code output compatible with major frontend frameworks. Bridges the gap between design and development by turning visual concepts into functional code, saving designers and developers hours of manual translation work.

API development and testing platform

The most popular API platform used by 30M+ developers worldwide. Build, test, and document APIs with collections, environments, automated testing, and team collaboration. Features mock servers, monitoring, API design tools, and a vast public API network. The industry standard for API development workflows from prototyping through production testing and documentation.

Built-in project planning for GitHub

GitHub's built-in project management tool that organizes issues, pull requests, and draft items into customizable boards, tables, and roadmap views directly within your repositories. Features custom fields, automated workflows for moving items based on PR/issue status, grouping, filtering, milestones, and iteration planning. Integrated with GitHub Issues and PRs for seamless developer workflows. Free for all GitHub users. A lightweight alternative to Jira for GitHub-centric teams.

Project tracking for software teams

Atlassian's project management and issue tracking tool powering agile workflows, sprint planning, bug tracking, and deep integration with Bitbucket and Confluence. Supports Scrum and Kanban boards with customizable workflows, automation rules, and advanced reporting. The enterprise standard for engineering teams managing complex software delivery across distributed organizations.

Team workspace by Atlassian

Open-source terminal-based AI coding agent that connects to any LLM provider. Designed for Unix-native workflows with piping, scripting, and shell integration. Lightweight and composable, it fits naturally into existing terminal-based development workflows. Popular among developers who prefer command-line tools and want AI coding assistance without leaving their terminal environment.

Virtual whiteboard for sketching

Open-source virtual whiteboard for creating hand-drawn style diagrams, wireframes, and sketches in the browser. Features real-time collaboration, shape libraries, infinite canvas, text support, arrow connectors, and export to PNG/SVG. The hand-drawn aesthetic makes diagrams feel informal and approachable. Works offline as a PWA. Embeddable in Notion, Obsidian, and other tools. Used extensively for architecture diagrams, brainstorming, and technical communication. 95K+ GitHub stars.

Where work happens

Enterprise messaging platform for team communication with channels, direct messages, threads, and huddles (audio/video calls). Features rich app integrations via Slack API and Bolt framework, Workflow Builder for no-code automations, Canvas for collaborative docs, Slack Connect for cross-company channels, and file sharing. AI features summarize threads and channels. Integrates with 2,600+ apps. Owned by Salesforce. The de facto real-time communication tool for tech companies and developer teams.

Issue tracking built for software

Fast, opinionated project management for software teams with a keyboard-first interface, cycles, roadmaps, and deep GitHub/GitLab integration. Used by Vercel, Anthropic, and Coinbase. The modern Jira alternative that engineering teams actually enjoy using, with a clean design and responsive UI that makes issue tracking feel effortless rather than burdensome.

Build software with AI

Browser-based IDE and cloud platform with a built-in AI agent that builds full-stack applications from natural language prompts. Supports 50+ languages with instant hosting, multiplayer collaboration, built-in databases (PostgreSQL, key-value), secrets management, and one-click deployment. Used by 30M+ developers for prototyping, learning, and shipping apps. Features Ghostwriter AI for code completion. Popular for hackathons, education, and rapid MVP development.

Collaborative design platform

Open-source AI-powered search engine that answers questions with cited sources. Combines web search with LLM synthesis to deliver accurate, referenced responses. Self-hostable alternative to Perplexity with support for multiple search backends and language models. Ideal for teams and individuals who want AI-powered search while maintaining control over their data and infrastructure.

Knowledge management for teams

Modern documentation platform that combines a WYSIWYG editor with Git-backed version control for technical documentation, API references, and knowledge bases. Features real-time collaboration, OpenAPI/Swagger integration for auto-generated API docs, custom domains, visitor authentication, and AI-powered search. Syncs bidirectionally with GitHub/GitLab repositories. Includes analytics for tracking documentation usage. Used by Ethereum, Linux Foundation, and thousands of developer teams.

Connected workspace for teams

All-in-one workspace combining notes, wikis, project management, databases, and documents in a single flexible platform. Features a block-based editor supporting rich text, tables, kanban boards, calendars, galleries, and embeds. Powerful databases with relations, rollups, formulas, and filtered views. Includes Notion AI for writing assistance, team collaboration with permissions, templates gallery, and API for integrations. Used by millions for personal and team knowledge management.