Monika | Monika | Hyperjump Technology
Free and Open Source Synthetic Monitoring Tool
Categories:
Monika is an open-source, lightweight CLI tool for synthetic monitoring of websites, APIs, and databases, alerting users via multiple channels on downtime, slowness, and other issues.
🚀 Overview
Monika is a command-line application that enables synthetic monitoring of web applications, databases, and services using simple YAML configurations. It performs periodic probes to check response times, status codes, TLS certificates, and more, sending instant alerts when issues are detected.
The project solves the problem of undetected website downtime or performance degradation, which can lead to lost revenue, poor user experience, and reactive firefighting. By providing early notifications through customizable channels, it helps maintain high SLAs and proactive operations.
It's built for developers, DevOps engineers, IT managers, and teams running web apps, APIs, or servers who need reliable, self-hosted monitoring without monthly fees or complex setups. Hyperjump Technology created it as an open-source-first solution to deliver engineering excellence and periodic ('Berkala') monitoring capabilities.
✨ Key Features
- Synthetic probes supporting HTTP/HTTPS, databases (MySQL, MariaDB, PostgreSQL, MongoDB, Redis), JSON schemas, TLS expiry checks, and request chaining for complex workflows.
- 20+ notification channels including Slack, Discord, Telegram, Microsoft Teams, PagerDuty, SMTP/Email (SendGrid, Mailgun), Webhook, Desktop notifications, WhatsApp, and more.
- Assertions for response status, time thresholds, body content, redirects; Postman collection import for API monitoring.
- Prometheus metrics exporter for integration with Grafana; lightweight design runs on minimal resources like 0.5GB RAM droplets.
- Optional: Upcoming custom notification development and database probing enhancements.
🛠 Tech Stack
- CLI: Node.js (v20 LTS), TypeScript, oclif framework
- Config: YAML (monika.yml)
- Tools: Prettier, ESLint, Mocha (testing), Istanbul (coverage)
- Notifications: Custom Node.js packages
- Deployment: npm (@hyperjumptech/monika), Docker (hyperjump/monika)
- Monitoring: Prometheus exporter
👥 Who Is This For?
This project is useful for:
- Developers who want to ___ monitor APIs and sites with simple CLI commands.
- Teams looking for ___ self-hosted uptime and performance monitoring without subscriptions.
- Indie makers building ___ reliable services on a budget.
📸 Screenshots / Demo
- Live demo: https://monika.hyperjump.tech
- GitHub: https://github.com/hyperjumptech/monika
🔥 Project Status
- 🟢 Actively building
Last updated: 2025-02-24
❓ FAQ
Is this project free?
Yes / Open Source (Free to use, no monthly limitations, self-hosted.)
Is the source code available?
Yes — https://github.com/hyperjumptech/monika
Can I contribute?
Yes — Clone the repo, run npm ci, build/test changes, submit PRs via GitHub. Follow dev guide in README for monorepo setup, new notifications, or probes. Open issues/discussions for feedback.
📬 Contact & Links
- Website: https://monika.hyperjump.tech
- GitHub: https://github.com/hyperjumptech/monika
- Twitter/X: https://medium.com/hyperjump-tech (company blog)
- Email: Contact via GitHub issues or https://hyperjump.tech
Built with ❤️ and kept warm on WarmIndex.
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