Websites and APIs go down when least expected. When an outage happens, every minute matters. That is why I built Uptimely, an open-source uptime monitoring platform designed for real-time tracking, fast alerts, and total data control.
Why Uptimely?
Most monitoring tools are bloated or expensive. Uptimely keeps things simple and focused on what actually matters: knowing if your website is up, how fast it responds, and getting notified instantly when something breaks.
Key Features
Raw Socket Inspection: Measures DNS lookup, TCP handshake, TLS negotiation, and Time to First Byte (TTFB) directly at the network level for sub-millisecond precision.
Instant Alerts: Sends immediate status updates via email and Discord webhooks when your service goes down or comes back online.
Cron Heartbeat Tracking: Monitors background jobs and cron tasks using Redis sorted sets to detect overdue scheduled tasks automatically.
OTP Email Security: Simple, secure user authentication powered by 6-digit verification codes.
Tech Stack
Runtime: Bun
Framework: ElysiaJS
Database: Supabase PostgreSQL with Drizzle ORM
Cache: Upstash Redis
Email: Resend API
Try It Out
Uptimely is 100 percent open source and free to use forever.
Live Application: https://uptimely.vercel.app
GitHub Repository: https://github.com/rimu-7/uptimely-backend
Contributions and feedback are always welcome.