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Network Tools

Troubleshoot quickly: run DNS lookups, check HTTP responses, inspect headers, and test WebSockets from your browser for efficient network diagnostics.

13 tools available

Blockchain Tools 1

ENS Resolver

Forward & reverse ENS resolver: .eth to EIP-55 address, primary name, avatar, multi-chain SLIP-44 & text records. Read-only, no wallet, fully client-side.

Conversion 1

Data Rate Conversion 1

All Data Rate Units

Convert all data rate units instantly. Bits per second, kilobits, megabits, gigabits, bytes per second, KB/s, MB/s, GB/s in one tool.

Developer Tools 6

Generators 1

WiFi QR Generator

Generate branded WiFi QR codes with your logo and colors. Scan to auto-connect — no typing. WPA3/WPA2/WEP, open and hidden networks, scannability check.

Testing & Debugging 1

WebSocket Tester

Connect to any ws:// or wss:// endpoint, send/receive messages live, see full history with timestamps. For debugging chat, GraphQL subs, MQTT-over-WS.

Utilities 4

WHOIS Lookup

WHOIS / RDAP domain lookup with expiry countdown — registrar, days until expiry, domain age, nameservers, EPP status codes, DNSSEC. 1500+ TLDs, no API key.

DNS/IP Lookup

DNS resolver + IP geolocation + reverse DNS PTR. Pulls A/AAAA/MX/TXT/NS/CNAME/SOA/CAA records and geo/ISP/ASN data via DNS over HTTPS.

HTTP Status Codes

Complete HTTP status code reference. Search 60+ codes (100–511) with definitions, RFC links, cacheable & retryable flags. Covers 200, 301, 404, 429, 500.

Subnet Calculator

Free IPv4 subnet calculator with CIDR to subnet mask, Cisco wildcard mask, VLSM splitting, binary view, and reverse host sizing (pick the prefix for N hosts).

Hardware Tools 4

Connectivity 4

Network Quality

Test live WiFi and network quality: connection type, effective speed, downlink, round-trip time and jitter via the Network Information API, with CSV export.

Bluetooth Signal Tester

Scan and connect to nearby BLE devices in your browser via Web Bluetooth. Read GATT services and characteristics, monitor RSSI signal strength.

NFC Tester

Web NFC diagnostic tool: read NDEF records and tag serial/UID, write text/URI, lock tags, export CSV/JSON QA reports. NTAG215 & MIFARE on Chrome Android.

Speed Test

Free browser-based internet speed test, no app needed. Measure download & upload Mbps, ping, jitter & packet loss, plus your IP and ISP, in real time.

Video Tools 1

Video Upload Time

Estimate upload time for 4K ProRes masters, S3 multipart delivery and broadcast hand-off. Compute size from source bitrate, add parallel streams and overhead.