Developer ToolsCSV ↔ JSONConvert quoted CSV tables to JSON records and JSON object arrays back to CSV.On-device
Network ToolsDNS LookupQuery A, AAAA, CNAME, MX, NS, TXT, SOA, CAA, SRV, and PTR records over DNS-over-HTTPS.Live lookup
Security UtilitiesFile Hash / ChecksumCalculate SHA-1, SHA-256, SHA-384, or SHA-512 checksums for a local file with Web Crypto.On-device
Network ToolsIP Address AnalyzerInspect IPv4 or IPv6 addresses, scope, network details, binary, hex, and reverse DNS.On-device
Network ToolsIPv4 Subnet CalculatorAnalyze IPv4 networks, masks, wildcard masks, host ranges, and address representations.On-device
Network ToolsIPv6 Subnet CalculatorAnalyze and expand IPv6 addresses, prefixes, ranges, scopes, binary, hex, and PTR names.On-device
Developer ToolsJWT DecoderDecode JWT header and payload locally without claiming signature or token validation.On-device
Security UtilitiesPassword Strength CheckerCheck password length, character variety, obvious patterns, and a local heuristic entropy estimate without upload.On-device
Security UtilitiesRandom Token / Secret GeneratorGenerate random byte tokens as hexadecimal or base64url with Web Crypto.On-device
Developer ToolsRegex TesterTest JavaScript regular expressions locally and inspect matches, indexes, and capture groups.On-device
Network ToolsVLSM PlannerAllocate IPv4 subnets by host requirement with masks, wildcard masks, ranges, and utilization.On-device