slimerjs ☆

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Description:
Scriptable browser for Web developers

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: automation testing headless-browser javascript scraping

Install: brew install slimerjs

About:
SlimerJS is a scriptable browser environment powered by Gecko, designed for Web developers and testers. It allows you to automate interactions with web pages using JavaScript, similar to PhantomJS but with modern standards support. Its main value is enabling headless testing and web scraping tasks that require a real browser engine.

Key Features:

Scriptable automation using JavaScript
Headless browser operation for automated testing
Access to browser APIs like the DOM, Canvas, and WebGL
Uses the Gecko (Firefox) rendering engine

Use Cases:

Automated functional testing of web applications
Web page scraping and data extraction
Site performance monitoring and automation

Alternatives:

Puppeteer – Puppeteer controls headless Chrome/Chromium via the DevTools Protocol and is more actively maintained.
Playwright – Playwright offers cross-browser automation (Chromium, Firefox, WebKit) with a modern API and auto-waiting features.

Version History

Detected	Version	Rev	Change	Commit
Sep 15, 2025 10:33am		0	VERSION_BUMP	482018e9
Sep 13, 2024 11:16pm		0	VERSION_BUMP	8f8dce6b