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AI Tools for Startups

Created at October 13, 2025 • Updated 10/16/2025

essential open-source AI tools every startup needs — covering development, project management, collaboration, documentation, design, testing, marketing, and user feedback

https://www.21oss.com//curated/ai-tools-for-startups
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BroKarim

@BroKarim

Huly is an integrated open-source platform combining project management, team communication, document collaboration, and virtual office spaces with GitHub integration and real-time editing.

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    24,153
  • Forks


    1,685
  • Last commit


    1 day ago
  • Repository age


    4 years
  • License


    EPL-2.0
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Fetched from GitHub .

Plane is an open-source project management platform that combines the best features of JIRA, Linear, and Asana into one intuitive tool. Designed to track issues, manage sprints, and organize product roadmaps without unnecessary complexity, it offers a calm alternative to chaotic project management solutions. With its clean interface and powerful workflow customization, Plane helps teams stay productive while maintaining focus on their work rather than tool management.

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    44,051
  • Forks


    3,316
  • Last commit


    2 days ago
  • Repository age


    3 years
  • License


    AGPL-3.0
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Fetched from GitHub .

Onlook is an open-source, AI-first design tool that enables visual building, styling, and editing of React applications directly in the browser. It combines Next.js and TailwindCSS with real-time visual editing capabilities, allowing designers and developers to craft websites and prototypes with AI assistance. The platform offers direct DOM manipulation, collaborative design features, and serves as an open-source alternative to tools like Bolt.new, V0, and Webflow with integrated AI workflows.

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    24,279
  • Forks


    1,786
  • Last commit


    17 days ago
  • Repository age


    2 years
  • License


    Apache-2.0
View Repository

Fetched from GitHub .

#4
A favicon of Zed

Zed is a high-performance, multiplayer code editor built in Rust. It features real-time collaboration, GPU-accelerated rendering, and Vim mode support. Designed for developers seeking speed and team productivity with native performance across platforms.

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    73,281
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    6,612
  • Last commit


    16 hours ago
  • Repository age


    5 years
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Fetched from GitHub .

Fumadocs is a comprehensive documentation framework built on top of Next.js that enables developers to create fast, modern, and feature-rich documentation websites. It provides a complete toolkit including content management through MDX, built-in search functionality, internationalization support, and customizable UI components. The framework is designed for developers and teams who want to build professional documentation sites with minimal configuration while maintaining full control over design and functionality. It offers excellent performance, SEO optimization, and a developer-friendly experience with TypeScript support and extensive customization options.

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  • Stars


    10,294
  • Forks


    574
  • Last commit


    21 hours ago
  • Repository age


    3 years
  • License


    MIT
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Fetched from GitHub .

The official mobile application for Bluesky, a decentralized social network built on the AT Protocol. This React Native app provides users with a Twitter-like experience featuring posts, replies, likes, reposts, and customizable feeds. It supports both iOS and Android platforms, offering features like threaded conversations, media uploads, content moderation tools, and algorithmic feed customization. The app connects to the AT Protocol infrastructure, enabling users to participate in a federated social networking ecosystem with portable identity and data ownership.

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    17,549
  • Forks


    2,574
  • Last commit


    24 hours ago
  • Repository age


    4 years
  • License


    MIT
View Repository

Fetched from GitHub .

Hoppscotch is a lightweight, web-based API development suite that helps developers create, test, and document APIs. It provides a fast and beautiful interface for making HTTP requests, testing REST, GraphQL, WebSocket, and other API protocols. With features like collections, environments, real-time collaboration, and extensive protocol support, it serves as a powerful alternative to traditional API testing tools. The platform is designed for developers who need a quick, efficient way to interact with APIs without the overhead of heavy desktop applications.

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    77,526
  • Forks


    5,515
  • Last commit


    19 hours ago
  • Repository age


    6 years
  • License


    MIT
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Fetched from GitHub .

PostHog is an all-in-one, open-source product analytics platform that helps engineering teams understand user behavior, measure product performance, and make data-driven decisions. It combines session recording, feature flags, A/B testing, heatmaps, and comprehensive analytics in a single platform that can be self-hosted or used as a cloud service. The platform is designed for product teams who want complete control over their data while gaining deep insights into how users interact with their applications, enabling faster iteration and better product decisions.

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    30,819
  • Forks


    2,193
  • Last commit


    15 hours ago
  • Repository age


    6 years
View Repository

Fetched from GitHub .

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