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Dev tools · March 25, 2015

PhearJS, render JS webpages to JSON with PhantomJS

PhearJS is an API for PhantomJS. It

PhearJS, render JS webpages to JSON with PhantomJS launched on March 25, 2015 with 19 votes, #1,137 of 2,697 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 11 years on.

In plain words

PhearJS is an API that renders JavaScript-heavy webpages using PhantomJS and returns the results as structured JSON. It addresses the problem of scraping dynamic sites that rely on AJAX and client-side rendering by executing pages in a headless browser and extracting machine-readable output. The tool is designed for developers doing web scraping, data mining, or SEO work who need static snapshots of pages that would otherwise appear empty to standard HTTP requests.

written from the facts on this page · September 2026

From the sources

PhearJS renders dynamic webpages using PhantomJS : fetch a page, render it and return a pretty, machine-readable JSON object. Many websites rely on Javascript for data via AJAX and front-end rendering. When a machine (e.g. curl ) requests such a page it only 'sees' an empty page. This is a problem when you want to get a static copy of a dynamic page, e.g. for SEO purposes, web scraping or data mining. PhearJS fixes this by rendering pages in a headless PhantomJS browser and returning a fancy JSON object containing the rendered page + meta data about the response. PhearJS is fully open source, so you can run it on your own server. The internet is a messy place and exceptions aren't rare.…from phear.io

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