screenshot of Etoolbox


Collection of web developer utilities packaged as a desktop app. Technologies: React, Typescript, Redux, Axios, React-Query, Electron


Web Toolbox is an open-source collection of web developer utilities that is also available as a desktop application for Windows, Linux, and Mac. It offers a range of features to assist web developers in their work. The application has an online demo available for testing, and it has been tested with Cypress for end-to-end testing. The desktop application provides additional features such as global OS shortcuts and the ability to select where files will be stored. Web Toolbox is licensed under the MIT license.


  • JSON format: Easily view and manipulate JSON data with a user-friendly interface.
  • File encoder: Encode files into different formats, such as Base64, Hex, or URL-encoded.
  • RegEx tester: Test and experiment with Regular Expressions to verify patterns in text.
  • Imaging OCR: Optical Character Recognition for extracting text from images.


To install Web Toolbox, follow these steps:

  1. Clone the GitHub repository:
git clone
  1. Install the required dependencies:
cd WebToolbox
npm install
  1. Start the application:
npm start
  1. Access the application by opening a web browser and navigating to http://localhost:3000.


Web Toolbox is a versatile web developer tool that offers useful utilities for handling JSON data, encoding files, testing regular expressions, and optical character recognition for images. It is available both as a web application and a desktop application, with the latter providing additional features for improved usability. The application is actively maintained and tested with Cypress for reliable performance. Web Toolbox is an open-source project released under the MIT license, allowing developers to use and contribute to its development freely.


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