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Open Source Projects using Esbuild

A curated collection of the 120 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.

Favicon of Vikunja

Vikunja

Organize, collaborate, and conquer your tasks

  • Stars

    5,273

  • Last commit

    7 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:

Favicon of Linear
Linear
Favicon of Ever Gauzy

Ever Gauzy

Comprehensive open-source business management platform

  • Stars

    4,368

  • Last commit

    6 hours ago

  • License

    AGPL-3.0
All-in-one solution for ERP, CRM, HRM, ATS, and project management to streamline your business operations

Open Source Alternative to:

Favicon of Attio
Attio
Favicon of Tracecat

Tracecat

AI
Open source security automation platform for builders

  • Stars

    3,788

  • Last commit

    5 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:

Favicon of Splunk
Splunk
Favicon of OpnForm

OpnForm

Create powerful forms with ease and flexibility

  • Stars

    3,668

  • Last commit

    9 hours 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:

Favicon of Google Forms
Google Forms
Favicon of LangWatch

LangWatch

AI
Simulation-based testing and evaluation for AI agents

  • Stars

    3,523

  • Last commit

    5 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:

Favicon of LangSmith
LangSmith
Favicon of Bknd

Bknd

Feature-rich backend that runs anywhere you need it

  • Stars

    3,755

  • Last commit

    5 months 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:

Favicon of Supabase
Supabase
Favicon of Worklenz

Worklenz

Open source agency management tool for streamlined success

  • Stars

    3,155

  • Last commit

    2 days 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:

Favicon of Linear
Linear
Favicon of Chaskiq

Chaskiq

Open-source customer communication platform

  • Stars

    3,563

  • Last commit

    2 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:

Favicon of Zendesk
Zendesk
Favicon of Defguard

Defguard

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

  • Stars

    2,820

  • Last commit

    10 hours 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:

Favicon of Zerotier
Zerotier
Favicon of Grida

Grida

Open canvas for designing and building web apps

  • Stars

    2,631

  • Last commit

    5 hours 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:

Favicon of Figma
Figma
Favicon of Open Mercato

Open Mercato

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

  • Stars

    1,700

  • Last commit

    7 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:

Favicon of SAP
SAP
Favicon of Azimutt

Azimutt

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

  • Stars

    2,172

  • Last commit

    10 days ago

  • License

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

Vrite

Collaborative content creation for technical teams

  • Stars

    1,996

  • Last commit

    2 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:

Favicon of Mintlify
Mintlify
Favicon of Flowglad

Flowglad

AI
Cross-system automation and knowledge base for accounting firms

  • Stars

    1,722

  • Last commit

    4 months ago

  • License

    Unknown
Connects client data across tools, automates recurring accounting workflows, and maintains a self-updating knowledge base with human approval controls.
Favicon of Kodus

Kodus

AI
AI code review that learns your team's standards

  • Stars

    1,351

  • Last commit

    7 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:

Favicon of CodeRabbit
CodeRabbit
Favicon of Trench

Trench

Fast, scalable analytics infrastructure

  • Stars

    1,662

  • Last commit

    5 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:

Favicon of Amplitude
Amplitude
Favicon of WunderGraph

WunderGraph

Unify APIs, databases, and services effortlessly

  • Stars

    1,263

  • Last commit

    11 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:

Favicon of Apollo GraphQL
Apollo GraphQL
Favicon of Pullfrog

Pullfrog

AI
AI agent workflows built natively into GitHub

  • Stars

    1,130

  • Last commit

    1 day 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:

Favicon of CodeRabbit
CodeRabbit
Favicon of Pluton

Pluton

Self-hosted encrypted backups with 70+ cloud storage options

  • Stars

    761

  • Last commit

    5 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:

Favicon of Veeam
Veeam
Favicon of Keyshade

Keyshade

Secure secret management with public key encryption

  • Stars

    767

  • Last commit

    5 months ago

  • License

    MPL-2.0
Secure secret management platform with public key encryption, automated rotation, versioning, and real-time collaboration tools for development teams.

Open Source Alternative to:

Favicon of Keeper
Keeper
Favicon of LostPixel

LostPixel

Visual regression testing made effortless

  • Stars

    1,683

  • Last commit

    5 months ago

  • License

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

Open Source Alternative to:

Favicon of Chromatic
Chromatic
Favicon of Linky

Linky

A delightfully rich and dynamic link-in-bio.

  • Stars

    794

  • Last commit

    1 month 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:

Favicon of LinkTree
LinkTree
Favicon of Structr

Structr

Build complete web apps with integrated graph database

  • Stars

    829

  • Last commit

    3 days 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.
Favicon of OpenComputer

OpenComputer

AI
Persistent cloud VMs that hibernate and wake in seconds

  • Stars

    504

  • Last commit

    6 hours 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:

Favicon of Daytona
Daytona
Favicon of Operately

Operately

Open source company management for high-performance startups

  • Stars

    547

  • Last commit

    6 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:

Favicon of Linear
Linear
Favicon of Browser Operator

Browser Operator

AI
Open-source AI browser for intelligent web automation

  • Stars

    503

  • Last commit

    6 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:

Favicon of Comet Browser
Comet Browser
Favicon of Nordcraft

Nordcraft

Craft AAA web apps that delight your users

  • Stars

    487

  • Last commit

    12 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:

Favicon of Framer
Framer
Favicon of Hive

Hive

Open-source GraphQL federation platform

  • Stars

    484

  • Last commit

    1 day ago

  • License

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

Open Source Alternative to:

Favicon of Apollo GraphQL
Apollo GraphQL
Favicon of Midori Browser

Midori Browser

Fast, secure, and privacy-focused web browsing

  • Stars

    386

  • Last commit

    20 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:

Favicon of Firefox
Firefox
Favicon of Roomote

Roomote

AI
Self-hosted AI coding agent that opens real PRs

  • Stars

    225

  • Last commit

    5 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:

Favicon of Codex
Codex
Favicon of Procaptcha

Procaptcha

Decentralized CAPTCHA for enhanced web security

  • Stars

    298

  • Last commit

    12 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:

Favicon of reCAPTCHA
reCAPTCHA
Favicon of Private Captcha

Private Captcha

GDPR-compliant bot protection without user friction

  • Stars

    193

  • Last commit

    7 hours ago

  • License

    Unknown
Privacy-first CAPTCHA service that blocks bots while keeping forms accessible. No puzzles, no tracking, no cookies - just invisible cryptographic protection.

Open Source Alternative to:

Favicon of reCAPTCHA
reCAPTCHA
Favicon of Abby

Abby

Type-safe feature flags and remote config for developers

  • Stars

    166

  • Last commit

    1 year ago

  • License

    AGPL-3.0
Abby offers open-source, fully typed feature flagging and remote configuration for React and Next.js, with multi-environment testing and debugging tools.

Open Source Alternative to:

Favicon of LaunchDarkly
LaunchDarkly
Favicon of Warpdrive

Warpdrive

Self-hosted CRM for business development teams

  • Stars

    72

  • Last commit

    2 days 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:

Favicon of Attio
Attio
Favicon of Wraps

Wraps

Code-first email platform that deploys to your AWS

  • Stars

    56

  • Last commit

    9 hours ago

  • License

    AGPL-3.0
Build email templates as React components and automations in TypeScript. Deploy to your AWS account with SES integration. Marketing teams edit content without code.

Open Source Alternative to:

Favicon of Resend
Resend
Favicon of Friendly Captcha

Friendly Captcha

Invisible bot protection that respects user privacy

  • Stars

    33

  • Last commit

    2 days ago

  • License

    MPL-2.0
Privacy-compliant CAPTCHA alternative using proof-of-work technology. Protects websites from bots and spam without user interaction or data tracking.

Open Source Alternative to:

Favicon of reCAPTCHA
reCAPTCHA
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