{"$schema":"https://toolsly.tools/schemas/tool-manifest-v1.json","generated":"2026-05-20T20:47:38.314Z","discovery":{"catalog":"https://toolsly.tools/tools.json","llmsTxt":"https://toolsly.tools/llms.txt","sitemap":"https://toolsly.tools/sitemap.xml"},"relatedTools":[{"slug":"url-parser","name":"URL Parser","url":"https://toolsly.tools/url-parser"},{"slug":"user-agent-parser","name":"User-Agent Parser","url":"https://toolsly.tools/user-agent-parser"},{"slug":"http-status-code","name":"HTTP Status Code Lookup","url":"https://toolsly.tools/http-status-code"},{"slug":"mime-type-lookup","name":"MIME Type Lookup","url":"https://toolsly.tools/mime-type-lookup"},{"slug":"css-minifier","name":"CSS Minifier","url":"https://toolsly.tools/css-minifier"},{"slug":"css-beautifier","name":"CSS Beautifier","url":"https://toolsly.tools/css-beautifier"},{"slug":"html-minifier","name":"HTML Minifier","url":"https://toolsly.tools/html-minifier"},{"slug":"html-beautifier","name":"HTML Beautifier","url":"https://toolsly.tools/html-beautifier"}],"kind":"utility","slug":"subnet-calculator","name":"IPv4 Subnet Calculator","description":"Calculate network/broadcast addresses, host range, mask, wildcard mask, host counts, and IP class from a CIDR.","longDescription":"Drop in any IPv4 CIDR like 192.168.1.0/24 or 10.0.0.0/8 and get the full subnet breakdown: network address, broadcast address, usable host range, subnet mask in dotted-decimal and binary, wildcard mask (for ACLs), total and usable host counts, IP class, and whether the range is private (RFC 1918), loopback, link-local, multicast, CGNAT or public. Computation is pure bitwise on 32-bit unsigned integers — runs entirely in your browser.","category":"dev","categoryName":"Dev","keywords":["subnet calculator","cidr calculator","ipv4 subnet calculator","subnet mask calculator","network and broadcast address calculator","host range calculator","wildcard mask calculator","cidr to subnet mask","subnet mask to cidr","rfc 1918 lookup","private ip checker","ip class calculator","subnet split calculator","vlsm calculator","ip address calculator"],"badge":"Calculator","url":"https://toolsly.tools/subnet-calculator","inputs":[{"type":"text","key":"cidr","label":"CIDR","defaultValue":"192.168.1.0/24","placeholder":"e.g. 192.168.1.0/24","monospace":true}],"outputs":[{"key":"cidrNotation","label":"CIDR"},{"key":"networkAddress","label":"Network address"},{"key":"broadcastAddress","label":"Broadcast address"},{"key":"firstHost","label":"First usable host"},{"key":"lastHost","label":"Last usable host"},{"key":"totalHosts","label":"Total addresses"},{"key":"usableHosts","label":"Usable hosts"},{"key":"subnetMask","label":"Subnet mask"},{"key":"wildcardMask","label":"Wildcard mask"},{"key":"binarySubnetMask","label":"Subnet mask (binary)"},{"key":"ipClass","label":"IP class"},{"key":"ipType","label":"IP type"}],"invocation":{"webUi":"https://toolsly.tools/subnet-calculator","api":null,"notes":"Currently invoked via the web UI at `webUi`. Inputs are form fields; outputs are structured text values. A remote MCP/REST API is planned."}}