The Slim SEO Insider’s Guide
Everything we know about Slim SEO in one document: what it costs, its grades, getting a refund, getting help and what else to look at. Read it here, or keep a copy.
Slim SEO
The Insider’s Guide
WordPress SEO plugin that sets meta tags and schema with no setup
Every plan, grade, refund rule and rival among SEO plugins and apps, read from Slim SEO’s own pages.
Made by Slim SEO · checked Oct 23, 2026 · toolgpa.com
Contents
- 01WelcomeWhat it is, who it suits, its grades and the ten things to know first
- 02What it costsEvery plan, the free plan, ways to pay less and how prices have moved
- 03What it doesIts main features, where it runs, what it works with and who makes it
- 04Where it standsIts grades against its category, and whether to keep it or make your own
- 05The alternativesThe tools it is most often weighed against, side by side
- 06Quick answersThe questions people ask about it, each answered in a line or two
- 07About ToolGPAWho made this guide, what else is on the site, and how to cite it
ToolGPA put this guide together from Slim SEO’s own pages, its app-store listings and our grades. Every fact in it is on Slim SEO’s page too, where it is kept up to date. Checked Oct 23, 2026.
Part 01 · Overview
Welcome
What it is, who it suits, its grades and the ten things to know first
3.4
GPA, above 78 of the 78 other SEO plugins and apps we grade
Slim SEO is a WordPress SEO plugin from the team behind Meta Box that works with almost no configuration. The free plugin generates meta tags, social tags, schema, XML sitemaps and breadcrumbs, handles redirects and 404 monitoring, and can write titles and descriptions with your own AI key. Slim SEO Pro adds a visual schema builder, internal link suggestions and link health reports, Search Console data and a writing assistant.
To get you started, here are 9 things to know about Slim SEO, taken from its own pages and our grades.
No rating on record, but it works as soon as it's on: meta tags, schema and sitemaps are written from your posts with no setup.
- 1
Best for WordPress SEO with almost no settings
Slim SEO writes meta tags, schema and sitemaps on its own and handles redirects and 404s, all in the free plugin, with Pro at $59 a year for one site.
- 2
Paid plans start at $4.92 a month when paid by the year
As its pricing page puts it: $59 per year for 1 site.
- 3
There is a free plan
Free plugin on WordPress.org: automatic meta and social tags, schema, XML, image and news sitemaps, breadcrumbs, redirects, 404 monitoring and AI meta writing with your own API key.
- 4
It runs on Web
Web.
- 5
Automatic meta and social tags
Writes meta titles, descriptions, robots tags, Open Graph, Twitter Card and LinkedIn tags from each post with no setup, all editable.
- 6
AI titles and descriptions
The free plugin writes meta titles and descriptions one by one or in bulk using OpenAI, Gemini, Claude or OpenRouter, with your own API key.
- 7
Schema, sitemaps and breadcrumbs
Adds connected JSON-LD schema automatically and builds XML, image and Google News sitemaps. Pro adds a visual builder with 30+ schema types and custom JSON-LD.
- 8
A 3.4 GPA, above 78 of 78
That is against the other SEO plugins and apps we grade, on value, the free plan, features, ease of use and platforms.
- 9
Keep it
The plain part of Slim SEO you could make: schema markup and internal linking. What surrounds it you could not. The 4 things listed below take a company, not a weekend.
Slim SEO at a glance
- Pricing
- Free plan, from $59 per year for 1 site
- Free plan
- Yes
- Free trial
- None stated
- Runs on
- Web
- Made by
- Slim SEO
- Category
- SEO Plugins & Apps
- Our grade
- 3.4 GPA, very good
The report card
Best for WordPress SEO with almost no settings
Slim SEO writes meta tags, schema and sitemaps on its own and handles redirects and 404s, all in the free plugin, with Pro at $59 a year for one site. The AI writing runs on your own AI key, so that's billed separately, and the schema builder, link tools and Search Console reports are all Pro.
| Subject | Grade | Comment |
|---|---|---|
| Value for money | A | Personal is $59 a year for one site, about $4.92 a month, and renews at the same price. That's under 60% of this category's cheaper quarter. Ten sites are $119 a year and unlimited sites $179. |
| Free plan and trial | A | The free plugin has no caps: automatic meta and social tags, schema, XML, image and News sitemaps, breadcrumbs, redirects, 404 logs and AI meta writing with your own key. The schema builder and link tools are Pro. |
| Features | B | Meta tags, connected schema, sitemaps, breadcrumbs, redirects, 404 logs and AI meta writing, then on Pro a schema builder with 30+ types, link suggestions, Search Console reports and a writing assistant. It covers the whole job. |
| Ease of use | B | No rating on record, but it works as soon as it's on: meta tags, schema and sitemaps are written from your posts with no setup. Only the AI writing needs a key pasted in. |
| Platforms and integrations | B | Web only, inside WordPress. It connects to Search Console, Google Analytics and Tag Manager, and to OpenAI, Gemini, Claude and OpenRouter for AI writing. |
An A is worth 4 points, a B 3, a C 2, a D 1 and an F nothing. The GPA is the average of the five.
Who Slim SEO is for
- Fits if you want SEO tags handled with very few settings to touch
- Works for freelancers adding schema and link reports across up to 10 client sites
Who it is not for
- Watch out: AI meta writing runs on your own OpenAI, Gemini, Claude or OpenRouter key, billed by that provider
- Tight if you stay free, as the schema builder, link tools, Search Console reports and writing tips are Pro
- Skip it if your site isn't on self-hosted WordPress, as there's no standalone app
- Watch out: Pro includes a year of updates, refunds close after 14 days, and hosts and SaaS firms must ask for a quote
Good to know
Good for
- WordPress owners who want SEO handled with few settings
- Large or busy sites that want a plugin light on database queries
- Freelancers adding schema and link reports across client sites
Worth knowing
- It needs a self-hosted WordPress site; there is no standalone app.
- AI meta writing uses your own OpenAI, Gemini, Claude or OpenRouter key, so the AI provider bills you separately.
- The schema builder, link tools, Search Console reports and writing assistant all need Slim SEO Pro.
- Pro licences include a year of updates and support; refunds can be requested within 14 days.
Part 02 · Pricing
What it costs
Every plan, the free plan, ways to pay less and how prices have moved
$4.92
A month to start, paid by the year. There is a free plan too
Slim SEO has a free plan. Paid plans start at $59 per year for 1 site.
The schema builder and link tools are Pro.
Slim SEO
$0
The free WordPress.org plugin with automatic meta tags, schema, sitemaps, redirects and AI-written metadata.
Personal
$59
per year for 1 site, renews at the same price
Slim SEO Pro on 1 site: visual schema builder, link suggestions and health monitoring, Search Console reports and the writing assistant.
Freelancer
$119
per year for 10 sites, renews at the same price
The same Pro features on up to 10 sites, with a year of updates and support.
Agency
$179
per year for unlimited sites, renews at the same price
The same Pro features on unlimited sites. Hosts, SaaS companies and maintenance services must ask for a quote.
The free plan
Free plugin on WordPress.org: automatic meta and social tags, schema, XML, image and news sitemaps, breadcrumbs, redirects, 404 monitoring and AI meta writing with your own API key.
Read from wpslimseo.com on Oct 23, 2026.
Ways to pay less
Education
Education licence discount on request
The Slim SEO Pro page invites schools and other educational buyers to contact the team for a discounted licence. The amount is not stated.
Stated on wpslimseo.comNonprofit
Nonprofit licence discount on request
The Slim SEO Pro page invites nonprofits to contact the team for a discounted licence. The amount is not stated.
Stated on wpslimseo.com
Part 03 · Features
What it does
Its main features, where it runs, what it works with and who makes it
1
Place it runs: Web
WordPress SEO plugin that sets meta tags and schema with no setup. Here is what it does, as its own site describes it, and what it covers: AI features, content optimization, schema markup, internal linking.
It connects to Search Console, Google Analytics and Tag Manager, and to OpenAI, Gemini, Claude and OpenRouter for AI writing.
- Automatic meta and social tags
- Writes meta titles, descriptions, robots tags, Open Graph, Twitter Card and LinkedIn tags from each post with no setup, all editable.
- AI titles and descriptions
- The free plugin writes meta titles and descriptions one by one or in bulk using OpenAI, Gemini, Claude or OpenRouter, with your own API key.
- Schema, sitemaps and breadcrumbs
- Adds connected JSON-LD schema automatically and builds XML, image and Google News sitemaps. Pro adds a visual builder with 30+ schema types and custom JSON-LD.
- Redirects and 404 monitoring
- Set redirect rules, force www or non-www, log 404s and redirect automatically when a post's slug changes, on the free plugin.
- Link manager
- Pro scans every link for status, suggests internal links from post content, fixes broken or redirected links in bulk and reports orphan pages.
- Search Console and writing assistant
- Pro shows Search Console performance, keyword and page reports in WordPress, and gives tips on keywords, images, links and readability while writing.
Where it runs
- Web
What it works with
- Google Search Console
- Google Analytics
- Google Tag Manager
- OpenAI
- Gemini
- Claude
- OpenRouter
Slim SEO is made by Slim SEO.
Part 04 · Standing
Where it stands
Its grades against its category, and whether to keep it or make your own
78/78
Other SEO plugins and apps it is graded above
Slim SEO's GPA of 3.4 is higher than 78 of the 78 other SEO plugins and apps we grade.
It stands best on free plan and trial (A, above 63 of 78) and worst on platforms and integrations (B, above 31).
Its paid plans start at $4.92 a month when paid by the year, against a middle price of $9.99 for the category: 7 of the 58 others that charge start lower.
On features, ease of use and platforms it scores 3.0 out of 4, and no tool on the category's chart scores higher without costing more.
Each grade against the category
Every bar is all 79 SEO plugins and apps we grade, cut by the letter each got. Slim SEO’s own letter is outlined.
- AValue for moneyAbove 53 of 78
- AFree plan and trialAbove 63 of 78
- BFeaturesAbove 53 of 78
- BEase of useAbove 60 of 78
- BPlatforms and integrationsAbove 31 of 78
Price against what you get
Each dot is one of 70 SEO plugins and apps. Further left costs less; higher up scores better on features, ease of use and platforms. Slim SEO is the marked dot.
What paid plans start at, a month (each step along is roughly double) →
Keep it, or make your own?
Whether this is something you could build for yourself with an AI app builder, and what you would give up.
Keep it
The plain part of Slim SEO you could make: schema markup and internal linking. What surrounds it you could not. The 4 things listed below take a company, not a weekend.
It is one of the better ones too: its GPA of 3.4 is higher than 78 of the 78 other SEO plugins and apps we grade. It costs $59 a year.
What you could make
- Schema markup and internal linking: an app builder makes these well.
What you could not
- A score built from what the top results for each keyword cover.
- It plugs into other products, Google Search Console, Google Analytics and Google Tag Manager among them.
- AI features, unless you pay a model provider for each request yourself.
- The depth: we grade its features B, which means it covers the whole job.
What this rests on. Slim SEO’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
Part 05 · Alternatives
The alternatives
The tools it is most often weighed against, side by side
The SEO Framework, Yoast SEO, SEOPress, All in One SEO (AIOSEO) and Rank Math
The 5 tools Slim SEO is most often weighed against, with where each one differs from it.
- 3.0GPA
The SEO Framework
Free plan · from $7/mo
WordPress SEO plugin that fills in meta tags and schema automatically.
- Slim SEO also covers internal linking.
- 2.6GPA
Yoast SEO
Free plan · from $118.80/yr
WordPress SEO plugin with content analysis, schema and sitemaps.
- Yoast SEO also covers AI search visibility.
- 3.0GPA
SEOPress
Free plan · from $49/yr
WordPress SEO plugin with a free edition and site licences from $49.
- SEOPress also covers rank tracking, site audit and backlink analysis.
- 2.8GPA
All in One SEO (AIOSEO)
Free plan · from $99/yr
WordPress SEO plugin with schema, redirects, link suggestions and AI.
- All in One SEO (AIOSEO) also covers rank tracking and site audit.
- 3.0GPA
Rank Math
Free plan · from €8.99/mo
WordPress SEO plugin for meta tags, schema, sitemaps and rank tracking.
- Slim SEO also covers content optimization, schema markup and internal linking.
- Rank Math also covers reports and rank tracking.
Part 06 · Questions
Quick answers
The questions people ask about it, each answered in a line or two
14
Questions, each answered in a line or two
The short version of everything above, for when you only need the answer. Each one is told in full in its part of the guide.
Is Slim SEO free?
Slim SEO has a free plan. Free plugin on WordPress.org: automatic meta and social tags, schema, XML, image and news sitemaps, breadcrumbs, redirects, 404 monitoring and AI meta writing with your own API key.
How much does Slim SEO cost?
Slim SEO lists 4 plans. Slim SEO: $0.
What platforms does Slim SEO work on?
Slim SEO is available on Web.
Does Slim SEO offer any discounts?
Slim SEO publicly lists the following: Education licence discount on request; Nonprofit licence discount on request.
Does Slim SEO have an Android app?
No Android app was listed when its pages were read on Oct 23, 2026. Slim SEO is listed for Web.
Does Slim SEO have an iPhone app?
No iPhone app was listed when its pages were read on Oct 23, 2026. Slim SEO is listed for Web.
Is Slim SEO open source?
Slim SEO is not described as open source on its own site, as read on Oct 23, 2026.
What does Slim SEO integrate with?
Slim SEO's listing names Google Search Console, Google Analytics, Google Tag Manager, OpenAI, Gemini, Claude and OpenRouter.
Does Slim SEO have a student discount?
Education licence discount on request. The Slim SEO Pro page invites schools and other educational buyers to contact the team for a discounted licence.
Who makes Slim SEO?
Slim SEO is made by a company of the same name.
What are the alternatives to Slim SEO?
The closest alternatives to Slim SEO in our directory are The SEO Framework, Yoast SEO, SEOPress, All in One SEO (AIOSEO) and Rank Math.
How does Slim SEO compare with other SEO plugins and apps?
Slim SEO's GPA of 3.4 is higher than 78 of the 78 other SEO plugins and apps we grade.
Is Slim SEO good value for money?
ToolGPA grades Slim SEO A for value for money. Its paid plans start at $4.92 a month when paid by the year, against a middle price of $9.99 for the category: 7 of the 58 others that charge start lower.
Could I make my own version of Slim SEO?
The plain part of Slim SEO you could make: schema markup and internal linking.
Where this guide comes from
The prices, plans, platforms and features were read from Slim SEO’s own pages on Oct 23, 2026, and the grades were given on Oct 23, 2026. Graded from this listing, whose facts were read from Slim SEO's own pages on 23 October 2026. Not based on using the product, and shorter than our full reviews.
Every tool we list gets five grades, A to F, each with its reason, and a GPA that averages them. How each is decided is at toolgpa.com/grades. This guide is ToolGPA’s own work; it is not made, paid for or approved by Slim SEO. Prices change, so check wpslimseo.com before you buy.
Part 07 · About
About ToolGPA
Who made this guide, what else is on the site, and how to cite it
3,189
Tools graded, in 94 categories
ToolGPA grades software the way a school report grades a pupil: five subjects, a letter for each with the reason written beside it, and a GPA that averages them. Prices, plans and platforms are read from each maker’s own pages and dated, so you always know how fresh a figure is.
Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.
3,189
tools graded
94
categories
426
price changes on record
579
apps priced in 12 countries
What else is on toolgpa.com
- Slim SEO, kept up to dateEverything in this guide, with prices and grades as they are todaytoolgpa.com/tools/slim-seo
- How grades are givenThe rules behind every letter and every GPAtoolgpa.com/grades
- Value chartsWhat each tool costs against what it scores, for every categorytoolgpa.com/charts
- CompareAny two tools side by side, plan by plantoolgpa.com/compare
- Price changesEvery price rise and cut on record, each with its sourcetoolgpa.com/price-changes
- Prices by countryWhat apps cost on the App Store in 12 countriestoolgpa.com/prices-by-country
- Pay lessEvery public discount: yearly billing, students, nonprofitstoolgpa.com/save
- Keep or makeWhich tools are worth paying for, and which you could build yourselftoolgpa.com/keep-or-make
Scan for the live page
Prices and grades as they are today
Quoting this guide?
Please name ToolGPA and link to the live page, so readers can check the figures for themselves:
ToolGPA, "Slim SEO: The Insider's Guide", checked Oct 23, 2026. https://toolgpa.com/tools/slim-seo
Know someone choosing between SEO plugins and apps?
Send them this guide: toolgpa.com/tools/slim-seo/guide
ToolGPA elsewhere: youtube.com/@toolgpa
See our other guides
The best-graded SEO plugins and apps after Slim SEO, each with an Insider's Guide of its own.
- SEO Plugins & Apps Insider's GuideEvery one of the 79 SEO plugins and apps we grade, compared
- SmartCrawl Insider's GuideWordPress SEO plugin from WPMU DEV with audits, schema and autolinks3.2 GPA
- XML Sitemap Generator for Google Insider's GuideFree WordPress plugin that builds and updates XML and HTML sitemaps3.2 GPA
- 404 to 301 Insider's GuideFree WordPress redirect manager with detailed 404 error logs3.0 GPA
Choosing software? Every tool graded, every price dated.
Compare tools at toolgpa.com ›Everything in this guide is ToolGPA’s own summary of what Slim SEO’s pages, its app-store listings and public reviews said on the dates shown. Grades are our judgement under the rules at toolgpa.com/grades. Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Slim SEO is a trademark of its owner, and this guide is not made, paid for or approved by Slim SEO. Prices and plans change: check wpslimseo.com before you buy.