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Free Tools for Developers
Handy, no-nonsense utilities you can use right now — no account, no limits. Built by the team behind ContinuumNexus monitoring.
IP Subnet Calculator
Turn an IP and CIDR into network, broadcast, host range, usable hosts and binary — instantly.
Open toolCron Expression Generator
Build a cron schedule, read it in plain English and preview the next run times.
Open toolFree API Health Check
Test any endpoint and see its status code, response time and availability in seconds.
Open toolJSON Formatter & Validator
Format, beautify, minify, and validate JSON payloads instantly with syntax checks.
Open tool