Network & Developer Toolbox
Professional tools for network engineers, developers, and IT professionals
Available Tools
48
Categories
7
Popular Tools
14
Offline Ready
100%
Popular Tools
14 featured / 48 totalSubnet Calculator
PopularCalculate network addresses, broadcast addresses, and host ranges for IPv4 and IPv6
IPv4 & IPv6 supportCIDR notationWildcard masks
VLSM Planner
PopularPlan Variable Length Subnet Masking with optimal allocation and minimal waste
Optimal allocationFragmentation analysisExport plans
Bandwidth Calculator
PopularCalculate transfer times, throughput, and bandwidth requirements
Transfer timeThroughput calcUnit conversion
Cable Calculator
PopularCalculate signal loss for fiber optic and copper cables with TIA standards compliance
Fiber & copperTIA-568 compliantPower budget
Routing Tools
PopularConfigure OSPF, EIGRP, static routes, and administrative distances
OSPF & EIGRPStatic routesAdmin distances
Wireless Tools
PopularChannel planning, interference analysis, and WiFi configuration
Channel planningInterference analysisWiFi config
Network Tester
PopularTest RTT, throughput, and connectivity to user-defined endpoints
RTT measurementThroughput testsCORS-enabled
Ping & Traceroute
PopularTest network connectivity and trace packet paths to destinations
Connectivity testsPath tracingLatency measurement
WiFi QR Generator
PopularGenerate QR codes for instant WiFi connection on smartphones
WPA2/WPA3/WEPPNG/SVG exportProject saving
Security Headers Checker
PopularAnalyze HTTP security headers and get recommendations
HSTS checkCSP analysisSecurity grade
Hash Generator
PopularGenerate and verify cryptographic hashes (SHA-256, SHA-384, SHA-512, SHA-1)
Multiple algorithmsFile hashingHash verification
Password Generator
PopularGenerate cryptographically secure random passwords
CustomizableStrength meterSecure random
JSON Formatter
PopularFormat, validate, and minify JSON data
Pretty printValidationMinify
Regex Tester
PopularTest and debug regular expressions with live highlighting
Live matchingCapture groupsCommon patterns
Browse by Category
All 48 tools organized by function
Privacy & Security First
Built with privacy and security as core principles
No Telemetry
Zero tracking or data collection
Offline First
Works completely offline by default
WCAG Compliant
Accessible to all users (AA standard)