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Open Source Projects using Esbuild

A curated collection of the 133 best open source software using Esbuild. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.

Comprehensive monitoring and incident management platform
  • Stars

    7,792
  • Last commit

    5 hours ago
  • License

    Apache-2.0
All-in-one solution for uptime monitoring, incident management, and status pages to keep your services running smoothly

Open Source Alternative to:

Modular auth, payments, emails, and analytics for your product
  • Stars

    6,887
  • Last commit

    19 hours ago
  • License

    Unknown
Self-hostable platform combining user auth, payments, email, and analytics into modular building blocks that fit around your existing product.

Open Source Alternative to:

Visual app builder that integrates with your existing codebase
  • Stars

    7,148
  • Last commit

    6 hours ago
  • License

    MIT
Open-source visual editor for building websites and web apps. Connect to any data source, design custom UIs, and ship production React code without leaving your stack.

Open Source Alternative to:

Build stateful backends with in-memory actors
  • Stars

    Stars growing over the last 30 days6,582
  • Last commit

    7 hours ago
  • License

    Apache-2.0
Open-source infrastructure for long-lived, in-memory processes called Actors. Combines state and compute with sub-millisecond latency, realtime capabilities, and horizontal scaling.

Open Source Alternative to:

Ad-free photo sharing with privacy and federation
  • Stars

    7,138
  • Last commit

    11 hours ago
  • License

    AGPL-3.0
Decentralized photo sharing platform with chronological feeds, privacy controls, and ActivityPub federation. No ads, no algorithms, just authentic connections.

Open Source Alternative to:

Organize and secure your documents in one central hub
  • Stars

    Stars growing over the last 30 days5,710
  • Last commit

    1 day ago
  • License

    AGPL-3.0
A document management platform that helps you archive, organize, and search files with email ingestion, tagging capabilities, and powerful search functionality.

Open Source Alternative to:

Programmable notes with queries, Lua scripting, and wiki links
  • Stars

    Stars growing over the last 30 days6,460
  • Last commit

    16 hours ago
  • License

    MIT
A self-hosted, browser-based note-taking system that turns plain Markdown pages into a queryable, scriptable knowledge base you control.

Open Source Alternative to:

Intercept, modify, and debug HTTP(S) requests effortlessly
  • Stars

    6,757
  • Last commit

    8 hours ago
  • License

    AGPL-3.0
A powerful browser extension and desktop app for developers to manipulate network requests, debug APIs, and improve web app testing

Open Source Alternative to:

Organize, collaborate, and conquer your tasks
  • Stars

    Stars growing over the last 30 days5,964
  • Last commit

    5 hours ago
  • License

    AGPL-3.0
A powerful, open-source task management platform for teams and individuals, offering customizable workflows and seamless integration.

Open Source Alternative to:

Simulation-based testing and evaluation for AI agents
  • Stars

    5,014
  • Last commit

    6 hours ago
  • License

    Apache-2.0
Tests AI agents through multi-turn simulations, LLM-based scoring, and production tracing so teams can ship reliable agents with confidence.

Open Source Alternative to:

Feature-rich backend that runs anywhere you need it
  • Stars

    3,780
  • Last commit

    5 days ago
  • License

    Apache-2.0
Lightweight Firebase alternative with database, auth, storage, and workflows. Framework-agnostic backend that integrates with NextJS, Remix, Hono and more.

Open Source Alternative to:

Open source security automation platform for builders
  • Stars

    3,890
  • Last commit

    12 hours ago
  • License

    AGPL-3.0
Tracecat is a scalable, self-hostable platform for automating security workflows and playbooks without limits.

Open Source Alternative to:

Create powerful forms with ease and flexibility
  • Stars

    Stars growing over the last 30 days3,985
  • Last commit

    1 day ago
  • License

    AGPL-3.0
A versatile open-source form builder for collecting data, managing submissions, and integrating with your favorite tools.

Open Source Alternative to:

One API to deploy and run agents on any model or machine
  • Stars

    Stars growing quickly over the last 30 days3,355
  • Last commit

    10 hours ago
  • License

    Apache-2.0
Production-ready agent infrastructure that handles state, machines, permissions, and history so you don't have to build the platform yourself.

Open Source Alternative to:

Open source agency management tool for streamlined success
  • Stars

    Stars growing over the last 30 days3,295
  • Last commit

    5 hours ago
  • License

    AGPL-3.0
Worklenz is a comprehensive project management platform that helps agencies organize tasks, track resources, and boost productivity.

Open Source Alternative to:

Website analytics, uptime monitoring, and server status in one
  • Stars

    3,118
  • Last commit

    21 hours ago
  • License

    Apache-2.0
Self-hostable platform combining website analytics, uptime monitoring, server status, Docker tracking, status pages, and telemetry for indie developers and small teams.

Open Source Alternative to:

Open-source customer communication platform
  • Stars

    3,581
  • Last commit

    4 months ago
  • License

    Unknown
Versatile messaging solution for businesses to engage customers through multiple channels, with AI-powered automation and analytics.

Open Source Alternative to:

Zero-Trust VPN with built-in 2FA/MFA and SSO capabilities
  • Stars

    2,897
  • Last commit

    1 day ago
  • License

    Unknown
Enterprise-grade open source VPN solution combining WireGuard with mandatory 2FA/MFA and integrated OpenID Connect SSO for secure remote access

Open Source Alternative to:

Open canvas for designing and building web apps
  • Stars

    2,698
  • Last commit

    17 days ago
  • License

    Apache-2.0
Design and build web applications on an open canvas with AI-powered tools, Figma integration, pixel drawing, and a modular SDK built for extensibility.

Open Source Alternative to:

AI-native CRM/ERP foundation with 80% already built
  • Stars

    Stars growing over the last 30 days1,906
  • Last commit

    5 hours ago
  • License

    MIT
A modular CRM/ERP framework built on Next.js and TypeScript that encodes hundreds of architectural decisions so dev teams can ship production features in days, not months.

Open Source Alternative to:

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:

AI code review that learns your team's standards
  • Stars

    Stars growing over the last 30 days1,565
  • Last commit

    11 hours ago
  • License

    AGPL-3.0
Open source AI code reviewer that analyzes pull requests for quality, security, and performance while respecting your existing rules and model preferences.

Open Source Alternative to:

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:

Cross-system automation and knowledge base for accounting firms
  • Stars

    1,722
  • Last commit

    6 months ago
  • License

    Unknown
Connects client data across tools, automates recurring accounting workflows, and maintains a self-updating knowledge base with human approval controls.
AI agent workflows built natively into GitHub
  • Stars

    Stars growing quickly over the last 30 days1,426
  • Last commit

    6 hours ago
  • License

    MIT
An open-source GitHub bot that runs AI agents to review PRs, triage issues, fix CI failures, and ship code using any LLM provider.

Open Source Alternative to:

Self-hostable omnichannel chatbot platform for agencies
  • Stars

    Stars growing quickly over the last 30 days1,077
  • Last commit

    7 hours ago
  • License

    MIT
Open source agentic chat marketing platform you can self-host, white-label, and resell. Automate omnichannel conversations across WhatsApp, Messenger, Instagram, Telegram, Zalo, TikTok, Email, and Webchat with a flow builder, shared inbox, AI agents, CRM, and broadcasts.

Open Source Alternative to:

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:

Fast, scalable analytics infrastructure
  • Stars

    1,666
  • Last commit

    7 months ago
  • License

    MIT
Open source analytics platform built on ClickHouse and Kafka, offering high-speed event tracking and real-time querying capabilities.

Open Source Alternative to:

Self-hosted encrypted backups with 70+ cloud storage options
  • Stars

    Stars growing over the last 30 days872
  • Last commit

    3 days ago
  • License

    Apache-2.0
Free, open-source backup solution with end-to-end encryption. Self-hosted control, supports 70+ cloud providers, automated incremental backups, and zero vendor lock-in.

Open Source Alternative to:

Secure secret management with public key encryption
  • Stars

    768
  • Last commit

    5 days ago
  • License

    MIT
Secure secret management platform with public key encryption, automated rotation, versioning, and real-time collaboration tools for development teams.

Open Source Alternative to:

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:

Visual regression testing made effortless
  • Stars

    1,676
  • Last commit

    7 months ago
  • License

    MIT
Automated visual testing tool that detects UI changes, ensures consistency, and accelerates development workflows.

Open Source Alternative to:

Persistent cloud VMs that hibernate and wake in seconds
  • Stars

    Stars growing over the last 30 days583
  • Last commit

    4 days ago
  • License

    Apache-2.0
Provides always-on virtual machines for AI agents with full OS access, persistent state, elastic CPU/memory resizing, and instant checkpoints.

Open Source Alternative to:

Build complete web apps with integrated graph database
  • Stars

    828
  • Last commit

    1 day ago
  • License

    Unknown
Open-source low-code platform combining Neo4j graph database, visual schema editor, automatic REST APIs, and page rendering in one self-hosted environment.
Open source company management for high-performance startups
  • Stars

    Stars growing over the last 30 days615
  • Last commit

    20 hours ago
  • License

    Apache-2.0
Operately is an open source platform that centralizes projects, goals, and processes, helping startups run efficiently without a COO.

Open Source Alternative to:

Self-hosted CRM for business development teams
  • Stars

    495
  • Last commit

    19 hours ago
  • License

    MIT
Pipeline management, deal workspace, contacts, and two-way Gmail for BD teams. Runs on your own infrastructure, MIT licensed, no per-seat fees.

Open Source Alternative to:

Open-source AI browser for intelligent web automation
  • Stars

    514
  • Last commit

    8 months ago
  • License

    BSD-3-Clause
Privacy-focused AI browser with intelligent agents for research, analysis, and workflow automation. Features unified memory, compliance guardrails, and seamless integrations.

Open Source Alternative to:

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:

Craft AAA web apps that delight your users
  • Stars

    500
  • Last commit

    24 hours ago
  • License

    Apache-2.0
Visual web development engine combining design and development tools. Build immersive, interactive web experiences with component-based framework, real-time collaboration, and powerful visual editor.

Open Source Alternative to:

Self-hosted AI coding agent that opens real PRs
  • Stars

    Stars growing quickly over the last 30 days326
  • Last commit

    7 hours ago
  • License

    FCL-1.0
Source-available, self-hosted AI coding agent that connects to your repo, tools, and chat to investigate issues and open reviewable PRs on your own infrastructure.

Open Source Alternative to:

Fast, secure, and privacy-focused web browsing
  • Stars

    413
  • Last commit

    11 hours ago
  • License

    MPL-2.0
Midori Browser is a lightweight, fast, and secure browser that protects users' privacy, available for Windows, Linux, and Android.

Open Source Alternative to:

Decentralized CAPTCHA for enhanced web security
  • Stars

    303
  • Last commit

    14 hours ago
  • License

    Apache-2.0
A blockchain-based CAPTCHA solution offering improved security, user experience, and resistance to bot attacks for web applications.

Open Source Alternative to: