Network
Network and browser troubleshooting tools for User-Agent parsing, URL analysis, CIDR subnet calculation, and runtime browser capability checks.
8 tools
Network
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User-Agent Parser
Parse a User-Agent string into browser, operating system, device, rendering engine, app context, and bot signals.
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URL Tools
Parse URLs, turn query strings into JSON, normalize links, remove tracking parameters, and flag risky patterns before sharing or debugging.
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HTTP Message Parser
Detects raw HTTP messages, cURL commands, and fetch snippets, unpacks the request line, status, headers, query, cookies, and body into a structured view, and re-emits the same call as thirty-plus client formats and target languages.
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cURL Converter
Convert a cURL command into the equivalent request in fetch, axios, Python requests, Go, Rust, PHP, Java, and around thirty other clients and languages, preserving method, URL, headers, cookies, and body, all in your browser.
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Cookie Parser
Parse Cookie and Set-Cookie headers and document.cookie strings into name, value, and attributes, decode URL-encoded, JSON, Base64, and JWT values, audit Secure, HttpOnly, SameSite, prefixes, and size, and export to many formats.
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Subnet Calculator
Calculate IPv4 subnet masks, network addresses, broadcast addresses, usable host ranges, and address counts from an IP and CIDR prefix.
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IP Address Converter
Detect IPv4, IPv6, IPv4-mapped IPv6, and integer IPs, convert between dotted decimal, integer, hex, binary, and compressed IPv6, and build reverse DNS names.
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Browser Compatibility Detector
Test the current browser for real support across web APIs, CSS, JavaScript, media, storage, security context, and device capabilities.
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About this category
Networking shows up in everyday debugging long before you ever open a packet inspector: a User-Agent string in a log file you need to decode, a URL whose query parameters got URL-encoded twice, a /24 you have to split into smaller subnets, or a browser API that the customer's device just doesn't support.
These tools are designed for that kind of work — pasted-input first, browser-side, with the option you actually need surfaced rather than buried. Parse, analyse, calculate, or compare in seconds, then copy the result back into the ticket, the doc, or the firewall rule.
What you can do here
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User-Agent parser
Break down browser, engine, OS, and device class from a raw UA string for log triage, support tickets, and feature-flag analysis.
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URL analysis and manipulation
Pretty-print components, decode and re-encode query parameters, and inspect path segments without escaping yourself into a corner.
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CIDR subnet calculator
Compute network and broadcast addresses, host counts, and subdivisions for VPC design, firewall rules, and IPAM planning.
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Browser capability checks
Detect runtime feature support — APIs, codecs, and limits — to reproduce a bug or document a baseline for a customer.