Developer Utilities
& Network Diagnostics
A comprehensive suite of high-fidelity client-side utilities. Secure, private, and fast—processing is completed entirely in your browser with zero data leaving your computer.
MAC Address Lookup
Instantly identify device manufacturers, vendor OUI registries, and physical hardware type details.
Launch ToolSubnet Calculator
Calculate IP ranges, CIDR subnets, subnet masks, wildcard masks, and total usable hosts in seconds.
Launch ToolUptime SLA Calculator
Translate high-availability uptime SLA percentages into absolute allowed daily, weekly, monthly, and yearly downtime.
Launch ToolApp Pinger Generator
Generate highly reliable keep-alive snippets for GitHub Actions, Bash, Node.js, and Python to prevent free-tier instances from sleeping.
Launch ToolBase64 Encoder/Decoder
Encode plain text into Base64 format or securely decode standard strings back to readable text with robust UTF-8 support.
Launch ToolRegex Tester
Build, debug, and test regular expressions in real-time with visual pattern matching and log extraction validations.
Launch ToolUnix Timestamp Converter
Convert human-readable dates into Unix Epoch timestamps and vice versa with precision in seconds or milliseconds.
Launch ToolNever let your scheduled tasks fail in silence
Ported with love from our sister service, CronRabbit. Use CronRabbit to monitor cron jobs, heartbeats, webhooks, and GitHub workflows, receiving instant alerts via Slack or Email.