Free browser tools

Practical checks for the websites you run.

Use a standalone tool with pasted page source, or add the lightweight launcher to a website you control. On-page checks run in your visitor’s browser.

Broken-Link Checker

Inspect pasted HTML for empty links and broken in-page anchors. The installed widget can check same-origin link responses.

Open tool

Mobile-Readiness Checker

Review viewport metadata and likely width issues in pasted source, or inspect rendered layout on your live page.

Open tool

Homepage Copy Grader

Get a transparent heuristic review of your headline, page copy, next action, and search description.

Open tool

SEO Metadata Auditor

Check title, meta description, primary heading, canonical URL, and image alternative text.

Open tool

Website embed

Add the tools to a website you control

Add this script tag before </body>. It adds a small floating launcher; visitors choose which local check to run.

<script src="https://rxtools.win/free-tools.js" data-tools="links,mobile,copy,seo" defer></script>

Tool checks do not send page content to RX Tools; third-party advertising scripts are separate and may inspect this page.
The broken-link check uses same-origin HEAD requests only, checks at most 50 unique destinations, and does not crawl external domains.
Your site’s CSP must allow the rxtools.win host in script-src and style-src; same-origin link checks also need permission in connect-src.
SEO and copy results are heuristics. Mobile checks inspect the current viewport. These tools do not certify compliance or predict rankings or conversions.