Open Source Projects using Express
A curated collection of the 155 best open source software using Express. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.
AI agents that transform merchant risk decisions at scale
Stars
2,442Last commit
8 days agoLicense
Unknown
Reduce fraud, accelerate underwriting, and maintain compliance with AI-driven merchant risk intelligence for PSPs, banks, and fintechs.
Open Source Alternative to:
Serverless team chat over Tor, no phone number needed
Stars
2,659Last commit
3 days agoLicense
GPL-3.0
Quiet is a peer-to-peer messaging app that syncs messages directly between devices over Tor, with no central server, no phone number required, and no metadata leaks.
Open Source Alternative to:
Business rules engine with AI, visual flows, and audit trails
Stars
2,066Last commit
24 hours agoLicense
MIT
Model business logic in decision tables, visual flows, and natural-language rules. Change rules without deploys, test every path, and run the same engine anywhere.
Open Source Alternative to:
Open-source message stream built on Postgres
Stars
2,213Last commit
8 months agoLicense
MIT
Sequin offers a feature-rich messaging system with a simple HTTP API, providing RabbitMQ-like functionality without adding complexity to your stack.
Open Source Alternative to:
Cross-system automation and knowledge base for accounting firms
Stars
1,722Last commit
5 months agoLicense
Unknown
Connects client data across tools, automates recurring accounting workflows, and maintains a self-updating knowledge base with human approval controls.
Cookie-less analytics for privacy-focused insights
Stars
1,743Last commit
11 months agoLicense
Apache-2.0
Track user behavior, custom events, and conversion funnels in real-time with a single line of code, all while maintaining GDPR compliance.
Open Source Alternative to:
Create, sell, and manage online courses with ease
Stars
1,277Last commit
7 days agoLicense
AGPL-3.0
An open-source platform for building and selling online courses, featuring customizable themes, integrated payments, and user management.
Open Source Alternative to:
Self-hosted uptime monitoring you own and control
Stars
1,201Last commit
5 months agoLicense
MIT
Open-source uptime monitoring solution with real-time alerts, status pages, and comprehensive checks for websites, APIs, databases, and services.
Open Source Alternative to:
Open-source feedback management for product teams
Stars
1,132Last commit
8 hours agoLicense
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:
Self-hosted encrypted backups with 70+ cloud storage options
Stars
854Last commit
1 month agoLicense
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:
Simplify server management with an intuitive interface
Stars
759Last commit
7 hours agoLicense
MIT
A user-friendly, open-source control panel for effortless server administration, designed for both beginners and experts.
Open Source Alternative to:
AI coding agent that sees your live app and edits code
Stars
717Last commit
22 hours agoLicense
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:
Persistent cloud VMs that hibernate and wake in seconds
Stars
566Last commit
9 hours agoLicense
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:
Visual regression testing for seamless UI development
Stars
640Last commit
6 hours agoLicense
MIT
Automate visual testing, catch UI bugs early, and collaborate effortlessly with your team to maintain pixel-perfect interfaces.
Open Source Alternative to:
Open-source AI browser for intelligent web automation
Stars
512Last commit
7 months agoLicense
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
484Last commit
6 hours agoLicense
MIT
A fully open-source schema registry, analytics, and gateway for GraphQL federation and APIs
Open Source Alternative to:
Inspect, debug, and replay BullMQ queues visually
Stars
452Last commit
5 months agoLicense
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:
AI governance made simple, secure, and compliant
Stars
364Last commit
9 hours agoLicense
AGPL-3.0
Open-source AI governance platform helping teams meet regulatory standards like EU AI Act and ISO 42001. Monitor model performance, manage risks, and maintain compliance with enterprise-grade security.
Open Source Alternative to:
Real-time event tracking and response for tech products
Stars
472Last commit
14 days agoLicense
AGPL-3.0
Track critical events, receive instant notifications, and respond to product activities with customizable webhooks and action buttons
Open Source Alternative to:
Fast, secure, and privacy-focused web browsing
Stars
407Last commit
9 hours agoLicense
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:
Open-source ideation tool for product feedback management
Stars
450Last commit
6 days agoLicense
Apache-2.0
ClearFlask is an open-source platform for collecting, analyzing, and acting on customer feedback to drive product development.
Open Source Alternative to:
Decentralized CAPTCHA for enhanced web security
Stars
303Last commit
14 hours agoLicense
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:
Type-safe feature flags and remote config for developers
Stars
166Last commit
1 year agoLicense
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:
Transform documentation with developer-focused simplicity
Stars
114Last commit
4 days agoLicense
MIT
Create powerful, interactive documentation with hot reloading, TypeScript support, custom components, and built-in API docs generation.
Open Source Alternative to:
Code-first email platform that deploys to your AWS
Stars
64Last commit
4 days agoLicense
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:
Turn short shortcuts into your everyday words
Stars
42Last commit
6 hours agoLicense
AGPL-3.0
Text expander that replaces typed abbreviations with saved replies, signatures, and snippets across macOS, Windows, and Linux.
Open Source Alternative to:
Self-hosted sticky notes with better organization
Stars
35Last commit
18 days agoLicense
MIT
A self-hosted, open-source note-taking app that keeps the Google Keep sticky-note feel while adding folders, timelines, list views, and import support.
Open Source Alternative to:
Access control for AI agents your customers log in with
Stars
19Last commit
9 days agoLicense
BUSL-1.1
Detects AI agents using customer credentials, masks private fields, holds risky actions for passkey approval, and signs every decision on your own server.
Open Source Alternative to:
No-code platform to build AI agents and automate support
Stars
15Last commit
6 hours agoLicense
MIT
Build AI chatbots, automate customer support workflows, and connect live agents across web, WhatsApp, email, and voice with a no-code visual designer.
Open Source Alternative to:
Sent – Messaging Infrastructure for Developers. One API for SMS, WhatsApp, and RCS across 190+ countries.
Stellar Hosted
c15t
CodeRabbit