binary expression

Type any expression and you'll see the graph ...

Perl Compatible regular expression tool.

Regular Expression wizard that converts human sentences to regexes.

Provides regular-expression handling for VB implementing UNIX-style regex syntax

Analyze binary data with comprehensible lightweight hex editor.

View and edit raw binary data on files and disks.

Freeware Hex Editor. View, Edit and Analyze Hexadecimal Data and Binary Files

Gets the 4-byte 32-bit binary volume serial number in Windows.

Freeware Hex Editor. View, Edit and Analyze Hexadecimal Data and Binary Files.

TrID is a utility designed to identify file types from their binary signatures.