Exec Javascript (ES9)

Name: Exec Javascript (ES9)
Rating: 3.752809 (259 reviews)
Author: Michael Lauer

By: Michael Lauer

Javascript IDE and execution. ECMAScript 2019 (ECMA-262) support

Features & Capabilities

Exec Javascript (ES9) is a comprehensive Chrome extension designed as a JavaScript integrated development environment (IDE) supporting ECMAScript 2019 (ES9). It enables developers to write, edit, and execute JavaScript code directly within the browser. Key features include syntax highlighting, line numbering, and an input form to facilitate interactive coding sessions.

Beyond coding capabilities, the extension offers advanced networking functionalities with built-in HTTP(S) client support for GET, POST, PUT, and HEAD requests, as well as MQTT(S) client support for publish/subscribe messaging. Users can save and open files seamlessly and explore included sample scripts to jumpstart their development process. Exec Javascript (ES9) is ideal for developers seeking a versatile, all-in-one tool for JavaScript coding and testing within Chrome.

User Growth & Download Statistics

App Developer Tools Programming

By:

Downloads:

Rating:

Version:

1.82 Last updated: 2025-12-26

Version code:

Creation date:

2016-08-07

Publisher country:

Permissions:

android.permission.INTERNET Low risk

Size:

34.46MB

Email:

mi*****@googlemail.com

URLs:

Full description:

Source:

Google Play Store

Data ingested on:

2026-06-04

Compare stats and ranking:

Ranking

# 236,043 ▼ 1,483

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.

Developed by:

Michael Lauer

Google Play Store

https://play.google.com/store/apps/details?id=de.mlauer.v8test

Email:

mi*****@googlemail.com

User Reviews

Users praise Exec Javascript (ES9) as a functional and effective JS executor, particularly for Roblox scripting and debugging. However, multiple users report crashes with large files or on older Android versions and express frustration over poor documentation or unclear instructions. The user interface and experience could benefit from improvements in readability and usability. Some users find limited developer support and unclear compatibility with various games. Overall, the app is valued for its core functionality but needs refinement and better guidance for users.

Pros

Effective JavaScript executor useful for debugging on the go.
Supports script execution for Roblox, appreciated by users interested in game scripting.
Generally stable and functional, allowing users to run custom scripts.
Offers a fun experience for users interested in exploiting or customizing game behaviors.
Developers responded to feature requests and provided regular updates.

Cons

App hangs or crashes with larger files or on older Android versions (e.g., KitKat 4.4.2).
Lack of clear user instructions or documentation on how to use the app or inject scripts.
User interface (UI) can be confusing or hard to read due to color scheme choices; UX could be improved.
Limited support from developers, leading to users facing unresolved issues.
Incompatibility or unclear support for certain games beyond Roblox, causing confusion.