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Open Source Projects using Fastify

A curated collection of the 28 best open source software using Fastify. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.

OpenPanel

Cookie-free web and product analytics, self-hostable

  • Stars

    7,256

  • Last commit

    2 days ago

  • License

    AGPL-3.0
Open-source analytics platform covering web traffic, custom events, funnels, retention, session replay, and revenue tracking. GDPR-compliant with optional self-hosting.

Open Source Alternative to:

Google Analytics

Tldraw

Free instant whiteboard with real-time collaboration

  • Stars

    51,255

  • Last commit

    18 hours ago

  • License

    Unknown
Virtual whiteboard that works instantly on any device, no signup required, with real-time multiplayer collaboration built in.

Open Source Alternative to:

Miro

Logseq

Privacy-first knowledge base that connects your notes

  • Stars

    45,481

  • Last commit

    6 hours ago

  • License

    AGPL-3.0
Local-first, open-source knowledge management tool with bidirectional linking, outlines, flashcards, PDF annotations, and whiteboards for building a connected second brain.

Open Source Alternative to:

Notion

FastGPT

AI
Build powerful AI knowledge bases with ease

  • Stars

    29,997

  • Last commit

    7 hours ago

  • License

    Unknown
FastGPT is a free, open-source platform for creating AI-powered knowledge bases with data processing, model invocation, and visual workflows.

Open Source Alternative to:

Zendesk

Infisical

Secure secret management for modern development teams

  • Stars

    30,278

  • Last commit

    5 hours ago

  • License

    MIT
End-to-end encrypted secret management platform for seamless integration and enhanced security in development workflows.

Open Source Alternative to:

Keeper

Onlook

AI
Visual React editor with real-time code updates

  • Stars

    27,118

  • Last commit

    15 days ago

  • License

    Apache-2.0
Onlook is an open-source desktop app that allows you to visually edit React applications and automatically write changes back to your code in real-time.

Open Source Alternative to:

Framer

Happy

AI
Desktop and phone app for your Claude, Codex and Grok sessions

  • Stars

    24,493

  • Last commit

    7 hours ago

  • License

    MIT
Orchestrates Claude Code, Codex, and Grok through a single desktop and mobile app, reusing the AI subscriptions you already pay for.

Open Source Alternative to:

Conductor

ActivePieces

Automate workflows with no-code integration platform

  • Stars

    25,378

  • Last commit

    8 hours ago

  • License

    MIT
Open-source integration platform for seamless workflow automation. Connect apps, automate tasks, and boost productivity effortlessly.

Open Source Alternative to:

n8n

Super Productivity

Task manager with time tracking, focus mode, and deep work tools

  • Stars

    Stars growing over the last 30 days23,419

  • Last commit

    7 hours ago

  • License

    MIT
Privacy-first task manager combining task lists, Kanban, Pomodoro timers, time tracking, and integrations with GitHub, GitLab, and Jira. No account required, works offline.

Open Source Alternative to:

Monday

Scalar

Open-source API documentation and testing platform

  • Stars

    16,376

  • Last commit

    10 hours ago

  • License

    MIT
Scalar is an open-source tool for building, customizing, and hosting interactive API documentation with OpenAPI support.

Open Source Alternative to:

Postman

Leon

AI
Your open-source personal assistant for server automation

  • Stars

    17,644

  • Last commit

    21 hours ago

  • License

    MIT
Leon is an AI-powered virtual assistant that lives on your server, automating tasks and managing your digital life with privacy and customization.

Open Source Alternative to:

ChatGPT

Rybbit

Understand your audience with privacy-first analytics.

  • Stars

    13,209

  • Last commit

    1 day ago

  • License

    AGPL-3.0
Get next-gen, open-source, and cookieless web analytics. Understand user behavior with session replays, real-time data, and web vitals. GDPR/CCPA compliant.

Open Source Alternative to:

Google Analytics

AITable

Visual database for workflow automation across apps

  • Stars

    15,659

  • Last commit

    2 months ago

  • License

    AGPL-3.0
AITable.ai offers a visual database platform that simplifies workflow automation and connects to over 6,000 apps through integrations like Zapier and Make.

Open Source Alternative to:

Airtable

Arize Phoenix

AI
Open-source LLM tracing & evaluation for AI optimization

  • Stars

    Stars growing over the last 30 days12,151

  • Last commit

    5 hours ago

  • License

    Elastic-2.0
Open-source platform for LLM tracing, evaluation, and optimization. Features automatic instrumentation, prompt playground, and real-time AI application monitoring.

Open Source Alternative to:

LangSmith

Steel

AI
Cloud browser sessions for AI agents and web automation

  • Stars

    7,923

  • Last commit

    23 hours ago

  • License

    Apache-2.0
Open-source browser infrastructure that lets AI agents and automation scripts control cloud browser fleets via a simple API, with built-in CAPTCHA solving and proxy management.

Open Source Alternative to:

Browserbase

Webiny

Open-source serverless CMS for modern web projects

  • Stars

    8,048

  • Last commit

    6 hours ago

  • License

    MIT
A powerful, scalable platform for building custom websites and apps with serverless architecture, offering flexibility and cost-efficiency.

Open Source Alternative to:

WordPress

Colanode

Self-hosted team workspace with chat, docs, and databases

  • Stars

    5,186

  • Last commit

    7 months ago

  • License

    Apache-2.0
Local-first collaboration platform combining real-time chat, rich text pages, databases, and file management in a single self-hostable workspace.

Open Source Alternative to:

Notion

Dittofeed

Open-source customer engagement platform for automation

  • Stars

    3,044

  • Last commit

    24 days ago

  • License

    MIT
Dittofeed offers low-code tools for message automation across multiple channels, including powerful segmentation and personalization features.

Open Source Alternative to:

Mailchimp

Vrite

Collaborative content creation for technical teams

  • Stars

    2,005

  • Last commit

    3 days ago

  • License

    AGPL-3.0
A powerful platform for technical writing, offering real-time collaboration, version control, and seamless integrations.

Open Source Alternative to:

Mintlify

Azimutt

Next-Gen ERD: Design, Explore, Document and Analyze your database.

  • Stars

    2,197

  • Last commit

    2 months ago

  • License

    MIT
Azimutt is a powerful tool for seamlessly exploring, documenting, and optimizing large and complex databases.

Open Source Alternative to:

Vertabelo

WunderGraph

Unify APIs, databases, and services effortlessly

  • Stars

    1,285

  • Last commit

    7 hours ago

  • License

    Apache-2.0
A powerful backend framework that simplifies API integration, enhances security, and boosts developer productivity for modern web applications.

Open Source Alternative to:

Apollo GraphQL

Jarvis

AI
Dictate faster and control your Mac with voice

  • Stars

    Stars growing over the last 30 days672

  • Last commit

    1 month ago

  • License

    MIT
Free, open-source macOS voice assistant that transcribes speech, applies AI transformations, and controls apps hands-free. No subscription, no training required.

Open Source Alternative to:

Wispr Flow

Linky

A delightfully rich and dynamic link-in-bio.

  • Stars

    799

  • Last commit

    16 days ago

  • License

    MIT
Build a dynamic link-in-bio page with a drag-and-drop editor. Integrate platforms to showcase live content and connect with your audience.

Open Source Alternative to:

LinkTree

Hive

Open-source GraphQL federation platform

  • Stars

    482

  • Last commit

    15 hours ago

  • License

    MIT
A fully open-source schema registry, analytics, and gateway for GraphQL federation and APIs

Open Source Alternative to:

Apollo GraphQL

Workbench

Inspect, debug, and replay BullMQ queues visually

  • Stars

    454

  • Last commit

    5 months ago

  • License

    MIT
Desktop app and embeddable dashboard for BullMQ that shows live queue metrics, job runs, FlowProducer graphs, and scheduler status without touching Redis directly.

Open Source Alternative to:

bull-board

Canonry

AI
Track and improve your brand's visibility in AI answers

  • Stars

    Stars growing quickly over the last 30 days199

  • Last commit

    9 hours ago

  • License

    MIT
Tracks how often AI tools like ChatGPT, Claude, and Perplexity mention or cite your brand, then fixes the gaps through AEO strategy and content work.

Open Source Alternative to:

Profound

Twake Chat

Secure open source messaging for professional teams

  • Stars

    173

  • Last commit

    7 hours ago

  • License

    AGPL-3.0
Free Matrix-based messenger with end-to-end encryption, multi-platform bridges, and on-premise deployment. Connect across 30+ networks securely.

Open Source Alternative to:

Microsoft Teams

StatusScout

Complete website health monitoring and security scanning

  • Stars

    16

  • Last commit

    6 months ago

  • License

    Unknown
Monitor website uptime, detect security vulnerabilities, find broken links, and simulate user flows. Get instant alerts when issues arise. Free tier available.

Open Source Alternative to:

BetterStack
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