Web Tools

File Type by Content

Shows the file type description along with its size and MIME type. Uploaded files are processed by your computer/device. The file type description is based on its content, not extension.
New: JPEG XL, HEIC/HEIF and AVIF files detection added.

IPv4 Ranges

Calculates the network mask and CIDR for subnets of the IPv4 range.

Test Regexp

The regular expression tester tool.

Mouse Events Tracker

Detects mouse left-button misclicks (false double-clicks).

Roman Numerals Converter

See what the Roman numeral XXII is or how to write 197 in Roman numerals.

Floating-point Numbers Representation

Shows representation of the floating-point numbers in binary formats for computer programs.

Floating-point Numbers Summation

Explore the inherent inaccuracies of floating-point number representation, which can lead to unexpected results in calculations and programming tasks.

Speed & Distance

Converts the speed in popular units and shows the time for covering some distances.

Character Code Detector

Identifies spaces and characters that are not part of the Latin alphabet within a text

Console Tools

CRD Reader

A cross-platform console viewer application for reading legacy Windows Contact Card (CRD) files, compatible with both Windows and Linux systems.

The Site Keyboard Navigation

To open the site menu press Ctrl+M, use up and down arrow key to navigate.