MonitorFlare is a self-hosted uptime monitoring platform with a beautiful public status page that runs entirely on the Cloudflare free tier (Workers + D1 + Pages). One-click deploy, no server, no monthly cost. Monitors HTTP/HTTPS, DNS, TCP ports, SSL certificate and domain expiry with 9 notification channels (Telegram, Slack, Discord, DingTalk, WeCom, Feishu, ntfy, webhook, email) and 9 languages. PWA status page with email subscription and RSS feed. MIT licensed and open source.
Generate a Certificate Signing Request (CSR) with a single curl command — no OpenSSL installs, no config files, no signup, no API key. The CSR and private key are returned as JSON. Open-source and MIT-licensed, with example scripts in curl, Bash, Python, and JavaScript. Free with a per-IP rate limit. The same domain also hosts a CSR decoder, SSL check, and certificate expiry monitor. Never fight openssl req flags or a misformatted -subj value again.