Expresso

A regular expression editor and tester for building and debugging patterns.

Expresso 3.1 is a major update to the regular expression development tool, with improvements to the user interface, Builder and Analyzer. It is offered free of charge.

5 alternatives to Expresso

Ranked by how well each tool replaces Expresso: shared features, audience, price and popularity.

Rubular
Ruby-based regular expression editor/tester
Covers 0 of 15 key features.
Free plan
61 out of 100 matchFree
EmEditor
A fast Windows text editor for huge files, CSVs, logs, and code
Covers 0 of 15 key features.
Free plan
59 out of 100 matchContact sales
PhraseExpress
The professional text template solution
Covers 0 of 15 key features.
55 out of 100 match—
RegexMagic
Regular Expression Generator
Covers 0 of 15 key features.
48 out of 100 match—
Regex.ai
AI-powered regular expression solver
Covers 0 of 15 key features.
Free plan
39 out of 100 matchContact sales

Key facts

Starts at: Free
Free plan: Yes
Free trial: No
Open source: No

What it does

Build complex regular expressions by selecting components from a palette
Test expressions against real or sample input data
Display all matches in a tree structure showing captured groups and captures within a group
Build replacement strings and test match and replace functionality
Highlight matched text in the input data
Automatic testing for syntax errors
Generate visual basic c or c plus plus code
Save and restore data in a project file
Maintain and expand a library of frequently used regular expressions
Analyzer that describes the regular expression in a tree structure updated continuously in a separate thread
Edit portions of the expression by selecting nodes in the analyzer view
Immediate feedback on syntax errors
Highlight portions of the expression for partial matching
Support for net 2 0 features like character class subtraction and new unicode classes
Context menu editing in both text view and analyzer view builder can be docked or undocked from the main window full undo redo capability line by line validation testing testing of the regex split method export of match results to excel xml visibility of carriage return and line feed characters in search results drag and drop of files and text insertion of arbitrary unicode characters code generation for c plus plus cli syntax code generation for replacement strings and templates for replace split match and other regex methods toggleable tooltips support for very long data files startup tips improvements to the regex library and threading improvements for reliable interruption of slow expressions

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5 alternatives to Expresso

Rubular

EmEditor

PhraseExpress

RegexMagic

Regex.ai