WordPress
Verified Top PickThe core Slim SEO plugin is a free download from the WordPress plugin directory. Slim SEO states that the free plugin is complete on its own, with features that are fully functional and not limited in a way that forces an upgrade. It handles meta tags, schema, XML sitemaps, redirection, image alt text and breadcrumbs automatically after activation.
Limited Time Offer
Pro
VerifiedSlim SEO Pro Freelancer costs $119 a year and can be used on 10 websites, where the Personal plan is $59 a year for 1 website. Both plans include the visual schema builder, contextual link suggestions, broken link repair, Search Console integration and the writing assistant, with one year of updates and support. Renewal is at the same regular price.
Limited Time Offer
Pro
VerifiedThe Agency plan of Slim SEO Pro is $179 a year for use on unlimited websites, with one year of updates and support and renewal at the regular $179. Slim SEO notes that the unlimited allowance does not apply to enterprises, hosting providers, SaaS companies or site maintenance providers, who are asked to contact the team for a tailored plan.
Limited Time Offer
Non-Profit
VerifiedUnder its three plans Slim SEO invites anyone looking for an Educational or Non-Profit license to contact the team for a discount on Slim SEO Pro. The page gives no fixed percentage, so the saving is agreed directly with the team through the contact form before the license is bought.
Limited Time Offer
No Card
VerifiedThe Slim SEO demo gives access to the settings page, the schema builder, the link reports and the premium plugins without paying. The sign-up form asks only for a name and an email address, and the page states that the demo is all free with no credit card required.
Limited Time Offer
SEO
VerifiedSEO Analyzer is the browser extension from the Slim SEO team for checking the meta tags and schemas of any page directly in the browser. The Slim SEO blog describes it as instant, simple and free, and the site links to it under Browser extensions in the footer.
Limited Time Offer
A practical savings guide for shoppers using Slim SEO offers.
Slim SEO does not publish a promo code on wpslimseo.com in October 2026. The Slim SEO Pro page shows three yearly plans at their regular prices, with no sale banner. The discounts the site does state are a reduced price for educational and non-profit licenses on request, and partner deals for customers who are logged in to their account.
Every plan includes the same features: the visual schema builder, more than 30 pre-built schema types, custom schema with JSON-LD, contextual link suggestions, real-time link health monitoring, broken link repair, the link updater, Search Console integration and the writing assistant. Each comes with one year of updates and support, and renewal is at the same regular price. The unlimited allowance of the Agency plan does not apply to enterprises, hosting providers, SaaS companies or site maintenance providers, who are asked to contact the team for a tailored plan.
Slim SEO Pro is a separate plugin. It works on its own and alongside other SEO plugins, so the free plugin is not required to use it. It needs WordPress 6.5 or newer and PHP 8.0 or newer.
Slim SEO has a 14-day refund policy: if the team cannot solve a problem, a refund can be requested within 14 days. Plans can be upgraded at any time. The Partners page lists deals for logged-in customers, including 20% off a custom fields plugin from the same team.
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