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Open Source Projects using Biome JS

A curated collection of the 96 best open source software using Biome JS. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.

Favicon of Orama

Orama

AI
Full-text & vector search at the edge.

  • Stars

    10,577

  • Last commit

    8 days ago

  • License

    Unknown
Blend full-text and semantic search for unlimited queries across 300 global locations. Get precise answers and matches at a flat rate, no matter your search volume.

Open Source Alternative to:

Favicon of Algolia
Algolia
Favicon of OpenStatus

OpenStatus

Status page and uptime monitoring for growing teams

  • Stars

    9,188

  • Last commit

    5 hours ago

  • License

    AGPL-3.0
Open-source status page and uptime monitor that tracks endpoints from 28 global regions, communicates incidents, and helps satisfy SOC 2 audit requirements.

Open Source Alternative to:

Favicon of incident.io
incident.io
Favicon of Cap

Cap

Privacy-first CAPTCHA alternative with proof-of-work

  • Stars

    8,017

  • Last commit

    3 days ago

  • License

    Apache-2.0
Lightweight open-source CAPTCHA solution using SHA-256 proof-of-work. 250x smaller than hCaptcha, fully customizable, and privacy-focused with zero telemetry.

Open Source Alternative to:

Favicon of reCAPTCHA
reCAPTCHA
Favicon of OpenBot

OpenBot

AI
Self-hosted enterprise agent platform with real permissions

  • Stars

    6,515

  • Last commit

    9 hours ago

  • License

    MIT
Deploy AI agents inside your own infrastructure with document-grounded answers, computer use, and support for any AG-UI-compatible agent framework.

Open Source Alternative to:

Favicon of Grok Bot
Grok Bot
Favicon of Rivet

Rivet

Build stateful backends with in-memory actors

  • Stars

    6,298

  • Last commit

    1 day 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:

Favicon of Cloudflare Workers
Cloudflare Workers
Favicon of Your Next Store (YNS)

Your Next Store (YNS)

Launch Your Store in Minutes, No Code Needed

  • Stars

    5,526

  • Last commit

    18 hours ago

  • License

    MIT
Fast, modern e-commerce with instant setup and full customization. Powered by Stripe for seamless transactions.

Open Source Alternative to:

Favicon of Shopify
Shopify
Favicon of Silverbullet

Silverbullet

Programmable notes with queries, Lua scripting, and wiki links

  • Stars

    6,325

  • Last commit

    10 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:

Favicon of Notion
Notion
Favicon of Plunk

Plunk

The open-source, affordable email platform

  • Stars

    5,523

  • Last commit

    18 hours ago

  • License

    AGPL-3.0
Plunk unifies marketing, transactional, and broadcast emails into a single, complete solution for businesses of all sizes.

Open Source Alternative to:

Favicon of Resend
Resend
Favicon of Rakazo

Rakazo

AI
Self-hosted AI agents that do real work on your machine

  • Stars

    4,064

  • Last commit

    7 hours ago

  • License

    Apache-2.0
Run persistent AI bots that sign into your tools, complete tasks autonomously, and ask for approval when needed. Your keys, your model, your infrastructure.

Open Source Alternative to:

Favicon of Grok Bot
Grok Bot
Favicon of UnKey

UnKey

Secure, scalable API key management for developers

  • Stars

    5,465

  • Last commit

    5 hours ago

  • License

    AGPL-3.0
Streamline API authentication with UnKey's powerful, developer-friendly platform for creating, revoking, and monitoring API keys.

Open Source Alternative to:

Favicon of Kong
Kong
Favicon of Weblate

Weblate

Continuous web-based localization for global reach

  • Stars

    6,109

  • Last commit

    5 hours ago

  • License

    GPL-3.0
Web-based continuous localization platform with version control integration, quality checks, and clean interface. Used by 2,500+ projects in 165+ countries.

Open Source Alternative to:

Favicon of Crowdin
Crowdin
Favicon of LangWatch

LangWatch

AI
Simulation-based testing and evaluation for AI agents

  • Stars

    4,958

  • 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 Rallly

Rallly

Effortless group scheduling for seamless collaboration

  • Stars

    5,305

  • Last commit

    14 hours ago

  • License

    AGPL-3.0
A user-friendly, open-source tool for coordinating events and meetings without the hassle of back-and-forth emails or messages.

Open Source Alternative to:

Favicon of Calendly
Calendly
Favicon of IronCalc

IronCalc

A spreadsheet engine you can embed, self-host, or run in the browser

  • Stars

    4,215

  • Last commit

    9 hours ago

  • License

    Apache-2.0
IronCalc is an open-source, Rust-powered spreadsheet engine with .xlsx support, 300+ functions, and bindings for JavaScript and Python.

Open Source Alternative to:

Favicon of Microsoft Excel
Microsoft Excel
Favicon of Tracecat

Tracecat

AI
Open source security automation platform for builders

  • Stars

    3,835

  • 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 Bknd

Bknd

Feature-rich backend that runs anywhere you need it

  • Stars

    3,773

  • Last commit

    22 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:

Favicon of Supabase
Supabase
Favicon of Ryot

Ryot

Track your life, your way

  • Stars

    3,640

  • Last commit

    1 day ago

  • License

    GPL-3.0
Ryot is a versatile platform for effortlessly tracking media, fitness, and more, replacing manual methods like spreadsheets.

Open Source Alternative to:

Favicon of Notion
Notion
Favicon of Deepnote

Deepnote

Python, SQL, and AI in a collaborative data notebook

  • Stars

    3,019

  • Last commit

    5 hours ago

  • License

    Apache-2.0
Deepnote is an open-source collaborative notebook for data analysts and scientists, combining Python, SQL, AI assistance, and live sharing in one cloud platform.

Open Source Alternative to:

Favicon of Snowflake
Snowflake
Favicon of Svix

Svix

Webhook delivery platform with retries, security, and a portal

  • Stars

    3,450

  • Last commit

    8 hours ago

  • License

    MIT
Add customer-facing webhooks to your product without building the infrastructure. Handles retries, signatures, multi-tenancy, filtering, and monitoring at scale.

Open Source Alternative to:

Favicon of Zapier
Zapier
Favicon of Autumn

Autumn

Stripe payments, usage tracking, and paywalls in 3 functions

  • Stars

    2,817

  • Last commit

    5 hours ago

  • License

    Apache-2.0
Simplify Stripe integration for AI startups with 3 functions, 0 webhooks. Build pricing plans in 30 minutes with usage tracking, credits, and feature controls.

Open Source Alternative to:

Favicon of Stripe Billing
Stripe Billing
Favicon of Usertour

Usertour

Create engaging product tours and user onboarding experiences

  • Stars

    2,322

  • Last commit

    20 hours ago

  • License

    AGPL-3.0
Open-source platform for building interactive product tours, tooltips, and in-app guides to improve user engagement and feature adoption without complex coding

Open Source Alternative to:

Favicon of Userflow
Userflow
Favicon of c15t

c15t

Build privacy-compliant cookie banners with full control

  • Stars

    1,978

  • Last commit

    18 hours ago

  • License

    Apache-2.0
Open source consent management framework for modern web apps. Framework-agnostic, fully customizable, and performance-first with no vendor lock-in.

Open Source Alternative to:

Favicon of Cookie Control
Cookie Control
Favicon of Languine

Languine

Automated localization for modern development teams

  • Stars

    2,033

  • Last commit

    5 months ago

  • License

    MIT
A developer-focused localization platform that automates translation workflows within your existing development pipeline and CI/CD processes.

Open Source Alternative to:

Favicon of Crowdin
Crowdin
Favicon of Flowglad

Flowglad

AI
Cross-system automation and knowledge base for accounting firms

  • Stars

    1,722

  • Last commit

    5 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 undb

undb

Local-first, offline-first no-code database platform

  • Stars

    2,978

  • Last commit

    24 days ago

  • License

    AGPL-3.0
Build and manage custom databases with ease, create type-safe APIs, and develop applications quickly

Open Source Alternative to:

Favicon of Supabase
Supabase
Favicon of Databuddy

Databuddy

Privacy-first analytics without cookies or tracking

  • Stars

    1,203

  • Last commit

    6 hours ago

  • License

    AGPL-3.0
Get powerful web analytics with zero cookies, 100% GDPR compliance, and full data ownership. Lightweight 3KB script delivers real-time insights without compromising user privacy.

Open Source Alternative to:

Favicon of Google Analytics
Google Analytics
Favicon of ChatbotX

ChatbotX

AI
Self-hostable omnichannel chatbot platform for agencies

  • Stars

    912

  • Last commit

    12 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:

Favicon of Manychat
Manychat
Favicon of LogChimp

LogChimp

Open-source feedback management for product teams

  • Stars

    1,132

  • Last commit

    2 days ago

  • License

    Apache-2.0
Collect, organize, and prioritize user feedback to build better products. Self-hosted solution for seamless feature request management.

Open Source Alternative to:

Favicon of Featurebase
Featurebase
Favicon of Cossistant

Cossistant

AI
AI-native support infrastructure for modern SaaS

  • Stars

    733

  • Last commit

    27 days ago

  • License

    AGPL-3.0
Open-source support platform combining AI and human agents. React components with shadcn/ui design philosophy, styled with Tailwind CSS for NextJS apps.

Open Source Alternative to:

Favicon of LiveChat
LiveChat
Favicon of Frontman

Frontman

AI
AI coding agent that sees your live app and edits code

  • Stars

    716

  • Last commit

    9 hours ago

  • License

    Apache-2.0
Open-source AI coding agent that runs in your browser, sees your live DOM and app state, and makes real code edits from plain English descriptions.

Open Source Alternative to:

Favicon of Lovable
Lovable
Favicon of Giselle

Giselle

AI
Build and deploy AI agents through visual workflows

  • Stars

    558

  • Last commit

    15 days ago

  • License

    Apache-2.0
Create powerful AI agents using an intuitive node-based interface that connects multiple LLMs and data sources for automated documentation and development workflows.
Favicon of Busabase

Busabase

AI
A verified workspace where AI agents store and build knowledge

  • Stars

    508

  • Last commit

    3 days ago

  • License

    MIT
Busabase gives AI agents a shared database, knowledge base, and skills registry where every proposed change goes through human review before becoming canonical data.

Open Source Alternative to:

Favicon of Notion
Notion
Favicon of Workbench

Workbench

Inspect, debug, and replay BullMQ queues visually

  • Stars

    452

  • 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:

Favicon of bull-board
bull-board
Favicon of Sigle

Sigle

Web3 writing platform for content creators and crypto enthusiasts

  • Stars

    488

  • Last commit

    1 day ago

  • License

    MIT
Sigle is a secure, open-source platform for Web3 writers to create, publish, and monetize content on the Bitcoin blockchain.

Open Source Alternative to:

Favicon of Substack
Substack
Favicon of Marble CMS

Marble CMS

Simple content management for modern sites

  • Stars

    384

  • Last commit

    6 hours ago

  • License

    AGPL-3.0
A headless CMS designed for blogs, changelogs, and articles. Features intuitive editor, team collaboration, media management, and API integration.

Open Source Alternative to:

Favicon of WordPress
WordPress
Favicon of Windshift

Windshift

Self-hosted project management with boards and test tracking

  • Stars

    343

  • Last commit

    11 hours ago

  • License

    AGPL-3.0
Self-hosted, open-source project management tool with boards, milestones, portals, time tracking, and test management on your own infrastructure.

Open Source Alternative to:

Favicon of Linear
Linear
Favicon of Midori Browser

Midori Browser

Fast, secure, and privacy-focused web browsing

  • Stars

    407

  • 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 Procaptcha

Procaptcha

Decentralized CAPTCHA for enhanced web security

  • Stars

    303

  • Last commit

    5 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 OpenPolicy

OpenPolicy

Generate legal policies directly from TypeScript code

  • Stars

    164

  • Last commit

    1 month ago

  • License

    Apache-2.0
Open-source policy-as-code framework that lets developers create privacy policies, terms of service, and legal agreements using TypeScript with built-in GDPR/CCPA compliance.

Open Source Alternative to:

Favicon of iubenda
iubenda
Favicon of Formizee

Formizee

Create and manage forms with ease

  • Stars

    185

  • Last commit

    1 year ago

  • License

    Apache-2.0
Formizee is an open-source platform for designing, building, and analyzing forms, offering an affordable all-in-one solution

Open Source Alternative to:

Favicon of Google Forms
Google Forms
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 xyd

xyd

Transform documentation with developer-focused simplicity

  • Stars

    114

  • Last commit

    3 days ago

  • License

    MIT
Create powerful, interactive documentation with hot reloading, TypeScript support, custom components, and built-in API docs generation.

Open Source Alternative to:

Favicon of Mintlify
Mintlify
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