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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

Resolve ENS domains to Ethereum addresses or reverse lookup an address to its primary ENS name. Free instant tool for vitalik.eth, ens.eth and more.

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 your live network quality: connection type, effective speed, downlink and round-trip time via the Network Information API. Free, no signup.

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

Test NFC tags in your browser using Web NFC API. Read and write NDEF records (text, URI), lock tags to read-only mode. Works on Chrome Android with HTTPS only.

Speed Test

Test your internet connection speed instantly. Measure download speed, upload speed, ping, latency, and jitter. Professional speed test tool with real-time results.

Video Tools 1

Video Upload Time

Estimate how long to upload a video to YouTube, Vimeo, TikTok, Drive or S3. Inputs: file size, upload speed in Mbps. Output: realistic minutes with overhead.