NetworkCalc

API

Free REST API for network calculations (subnet, DNS, binary & security tools)

Overview

The NetworkCalc API offers RESTful endpoints for essential network tasks: subnetting (CIDR to IP ranges), DNS lookups (A/AAAA records), binary/hex conversion, and basic security tools (port status checks). Responses are JSON-formatted, ideal for developers building network management apps, troubleshooting tools, or educational platforms. Use cases include automating subnet planning, validating DNS configurations, converting numerical network values, or adding quick security utilities to dev projects. It supports simple GET requests with clear parameter guidelines in its documentation.

Example Integration (JavaScript)

script.js JS


fetch('https://networkcalc.com/api/docs')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful endpoints
JSON response format
No API key required
Multi-tool network support

Frequently Asked Questions

? Is NetworkCalc API free to use?

Yes, the NetworkCalc API is free for public use with standard rate limits.

? Does it require an API Key?

No, the API does not require an API key for basic operations, simplifying testing and integration.

? What is the response format?

All responses are in JSON format, ensuring compatibility with most programming languages and frameworks.

Top Alternatives

IPInfo API Search Google

Tool Info

Pricing Free

Category Development

Platform Public API

Pros

⊕ Free to use
⊕ Easy integration
⊕ Comprehensive network tools
⊕ Well-documented

Cons

⊖ Rate-limited for high usage
⊖ Limited advanced security features
⊖ No SLA