Open Source & Free Tools for Web Workers

Regulex, is a JavaScript Regular Expression Parser & Visualizer. It is designed to parse and visualize regular expressions.

Key features:

• It is written in pure JavaScript, so no backend is required.

• The visualization can be embedded on a user's site using an HTML iframe.

• It provides detailed error messages, often pinpointing the exact location of a syntax error.

• Regulex does not support octal escapes. According to the source, this is intentional, because ECMAScript strict mode does not allow octal escapes in strings. Regulex will treat DecimalEscapes as back references and throw an error if they are invalid or appear in a character set.

Regulex also has an API that allows users to parse a regular expression into an Abstract Syntax Tree (AST) and to visualize it using Raphael. The API includes functions to parse regular expressions, visualize them, and log errors.

The application can be installed using npm for Node.js. It also provides instructions for local browser builds.

RegExGPT is a tool for generating regular expression patterns.

Features:

• RegExGPT generates regex patterns based on input examples of text and expected results.

• Users can provide an example of the text they want to transform, along with the desired output.

• There's an optional natural language input where users can explain the pattern they're trying to match.

• Users can select the programming language for the generated output.

• The tool provides an example of how to use the generated regex pattern in code, specifically using JavaScript's replace method.

In short, RegExGPT is designed to simplify the creation of regular expressions by allowing users to specify the desired transformation, rather than having to write the regex directly.

Regex.ai, an AI-powered regular expression solver.

Here are its key functionalities:

• Regex.ai finds matching regular expressions by having users input text and highlight multiple strings.

• Users can click on highlighted text to remove it.

• The tool displays the amount of text used, out of a maximum of 4000 characters.

The source provides examples of text with highlighted strings, but does not provide any regular expressions derived from that text.