Open Source SEO Tools

A free in-depth website analyzer providing audits of security, performance, SEO, accessibility and other technical aspects. Available as a desktop application for Windows/macOS/Linux and as a CLI tool for advanced users and CI/CD processes. It also includes an offline web page exporter.

Easy SEO for beginners, an awesome API for experts. WordPress SEO for everyone.

Free desktop SEO crawler - open source alternative to Screaming Frog and similar tools. Crawl websites, analyze links, extract SEO data, and export results without subscription fees.

Yext is a New York City technology company operating in the area of online brand management. It offers brand updates using its cloud-based network of apps, search engines and other facilities. The company was founded in 2006 by Howard Lerman, Brian Distelburger, and Brent Metz.

SEOnaut is an open source SEO auditing tool that checks your website for any issues that might be affecting your search engine rankings. It crawls your site and gives you a report with a list of any problems it finds, organised by how important they are to fix.

SEO Macroscope is a website scanning tool, to check your website for broken links; including some technical SEO functionality, site scraping, Excel reporting, and more.

Linen is a Google-searchable community chat tool. Linen was built as an alternative to closed tools like Slack and Discord.

SEO Auto Linker for WordPress.

A complete open source SEO control panel for managing search engine optimization of your websites.

Article Optimizer is a powerful SEO article optimizer and copyright-free image searching tool. The tool's code is open-source, it's available as a self-hosted app or available online as a free web app.

DRKSpider is an open source website crawler (sitemap generator) and link checker.

Serposcope is a free and open source rank tracker to monitor websites ranking in Google and improve your SEO performances.

WebSniffer allows to view request and response headers of a HTTP connection, HTTP status codes and HTML source. You can track with it redirect and referral links.

BAVOKO SEO Tools not just offers you the most extensive SEO toolset for the WordPress backend, but also extensive ranking and website analysis tools.

Simple Schema Reviews is a lightweight plugin that adds schema.org review markup to your website.

BlogBowl writes and publishes SEO articles daily - optimized for Google and AI models like ChatGPT, Claude, and Gemini. Grow traffic on autopilot.

Neumarkets helps companies in Toronto with websites and digital marketing. We focus on web design, SEO, web development, paid search, social media, marketing automation and logo design.

UPartner's mission is to increase the business performance of companies via the internet. By developing visibility on search engines, their brand image, their perceived expertise, we will increase the number of prospects who contact the company automatically.

IndexFLow is a platform where Discord community owners can Index their community threads and make them searchable on the Internet.

Enhance Sales and SEO with Our $1 Shopify AI Product Description Generator.

Javascript SEO, solved: get higher rankings by serving crawlers a static HTML version of your Javascript website, without compromising your customers’ experience.

SEOPress is a powerful plugin to optimize your SEO, boost your traffic, improve social sharing, build custom HTML and XML Sitemaps, create breadcrumbs, manage redirections 301 and so much more.