Network & hardware

Create .torrent files from your files. Configure trackers, web seeds, piece length, and metadata to generate downloadable torrent files.

Count the number of usable hosts in IP ranges, CIDR blocks, and subnets

Calculate maximum refresh rates and bandwidth requirements for DisplayPort connections based on version, link rate, resolution, color format, and color depth.

Calculate maximum refresh rates and bandwidth requirements for HDMI connections based on version, resolution, color format, and color depth.

List connected USB devices using the WebUSB browser API. View vendor ID, product ID, manufacturer, and serial number for each granted device.

Connect a RadiaCode radiation detector over Bluetooth and watch its dose rate, count rate, accumulated dose, battery and temperature live in your browser. Chart the readings and export them as CSV or JSON.

Read the gamma spectrum of a RadiaCode over Bluetooth and plot counts by energy on a linear or logarithmic scale. Refresh it automatically, reset it, and export every channel as CSV or JSON.

Connect a RadiaCode over Bluetooth to see its serial number, firmware and bootloader versions, energy calibration, configuration file and register list.

Change RadiaCode settings from your browser over Bluetooth: language, sound, vibration, display brightness and timeout, units, alarm thresholds and alert triggers. Reset the accumulated dose too.

Parse and decode magnet links to extract info hash, display name, file size, trackers, and more.

Generate PostgreSQL connection strings in URL, psql, and libpq key=value formats.

Generate MySQL connection strings in URL, CLI command, and JDBC formats.

Open geographic coordinates in multiple map providers including Google Maps, Bing Maps, Yandex Maps, Apple Maps, OpenStreetMap, HERE Maps, Waze, 2GIS, and more.

View your browser fingerprint and all underlying signals reported by FingerprintJS, including canvas, audio, fonts, and hardware data.

Look up the geographic location of any IP address, including country, region, city, timezone, and coordinates.

Look up WHOIS and RDAP registration data for any domain, including registrar, registrant, nameservers, and expiry date.

Check the status of a Minecraft Java Edition server: MOTD, version, protocol, online and max players, and server icon.

Check the status of a Counter-Strike 1.6 server: name, current map, online players, bots, server type, VAC status, and connected player list.

Check the status of a San Andreas Multiplayer (SA-MP) server: hostname, gamemode, language, online players, password protection, connected player list, and server rules.

Check the status of a GTA 5 FiveM server, including player count, game type, map, resources, and connected players.

Check your current public IP address (IPv4 and IPv6) and view your fetch history.

Measure the clock offset and round-trip time between your browser and a server using sequential timed requests.

Test your MacBook trackpad Force Touch pressure levels in real time using the Pressure.js library.

Find and download all icons from any website: favicons, Apple touch icons, Android chrome icons, and more.