// Engineering Utilities
Free Sysadmin & DevOps Tools
Client-side tools for sysadmins, network engineers, and DevOps. All computation happens locally in your browser - no data is ever transmitted to a server.
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CIDR Calc
$ subnetSubnet calculator
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Cron
$ cronCron schedule generator
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Timestamp
$ timestampUnix ↔ date
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JSON↔YAML
$ jsonymlConvert formats
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Password
$ passwordGenerate & check
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HTTP Codes
$ httpcodesStatus reference
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Uptime
$ uptimeSLA calculator
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DNS
$ dnsDNS health check
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MX Check
$ mxMail server lookup
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SSL
$ sslSSL certificate lookup
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Regex
$ regexPattern tester
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Hardening
$ hardeningSecurity checklist
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IP Info
$ ipinfoIP address lookup
