Suggestions for Matchedsplit

The following packages have something in common with the package Matchedsplit. The packages are ordered in decreasing similarity.

Package dynbrackets: Commands to simplify the syntax of dynamic math brackets
Package phfparen: Parenthetic math expressions made simpler and less redundant
Package bracealign: Align braces under and over math expressions
Package interval: Format mathematical intervals, ensuring proper spacing
Package ibrackets: Intelligent brackets
Package perfectcut: Nested delimiters that consistently grow regardless of the contents
Package rainbowbrackets: Automatic coloring of nested parentheses
Package embrac: Upright brackets in emphasised text
Package enparen: Consistent nested brackets
Package eqexpl: Align explanations for formulas
Package freealign: Align math formulas in different lines
Package longmath: Nested delimiter groups extending over multiple array cells or lines
Package tkz-interval: Interval brackets made with TikZ
Package monofill: Alignment of plain text
Package arraycols: New column types for array and tabular environments
Package ntabbing: Simple tabbing extension for automatic line numbering
Package autoaligne: Align terms and members in math expressions
Package arydshln: Draw dash-lines in array/tabular
Package centeredline: A macro for centering lines
Package tabbing: Extended tabbing environment with accented-letter support
Package pas-tableur: Create a spreadsheet layout
Package tabbingbox: Save a tabbing environment in a box
Package ruled-tables: Plain TeX table macros, with ruled capability
Package array: Extending the array and tabular environments
Package bits: Sub-document environments in LaTeX
Package blkcntrl: Block-element hooks in LaTeX
Package counterz: Additional tools for counters
Package diagnose: A diagnostic tool for a TeX installation
Package messagebubbles: Display message bubbles as a conversation
Package statistik: Store statistics of a document
Package varsfromjobname: Extract variables from the name of the LaTeX file