Development — entry 062 of 100
NetworkCalc
NetworkCalc exposes its browser-based network calculators - subnet/CIDR math, DNS lookups (A/AAAA/MX/NS/TXT/SOA), binary/hex conversions, and basic security tools - as free, keyless JSON endpoints. A live DNS lookup call against a real domain returned full record data with no authentication and an open CORS header, matching the tool's browser-first design.
AuthenticationNone requiredCall it straight away — no key, no signup.
HTTPSSupportedTraffic is encrypted in transit.
CORSEnabledCallable directly from browser JavaScript.
PricingFreeNo paid tier — free for the documented use case.
FormatsJSONResponses can be requested as JSON.
GreatAPIs Score
Score74
Authentication25/25No authentication required
Pricing20/20Free to use
Docs0/20No docs or spec available
Formats9/15Single response format
Freshness20/20Verified within 6 months
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<a href="https://greatapis.com/api/networkcalc/"><img src="https://greatapis.com/badge/networkcalc.svg" alt="Scored 74 on greatapis.com"></a>Auth quickstart
- No key needed — call it now.
Stored keyNo key stored
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.