Best SEO Tools in 2026: Free and Paid Options for Every Job

The best SEO tools depend on the job. Semrush and Ahrefs suit teams that want keyword research, backlink analysis and rank tracking under one subscription. Google Search Console is the free starting point for anyone with a website, and Screaming Frog is a desktop crawler that SEO professionals use for technical audits.

This guide groups the picks by job: all-in-one suites, free tools, technical crawlers, rank tracking, open-source options and a WordPress plugin. Closed-source products dominate SEO software, so the open-source section is short, but it is there. The live table shows pricing model, self-hosting and licence for each pick.

How we picked the best SEO tools

SEO is a loose label, so Enlisted looked at the jobs people actually search for: finding keywords, auditing a site, tracking positions and watching your own search performance. Each pick does one of those jobs as its core purpose, has a published product page, and shows its pricing model and free options in the directory. For open-source tools, Enlisted also checks the licence and recent GitHub activity. Tools that only shorten links or run A/B tests sit in the same catalogue category but were left out. The picks come from directory data and vendor pages rather than benchmark runs, and no tool is rated on database size, because vendors measure that differently. For how rankings work across the directory, see how Enlisted ranks tools.

Best all-in-one SEO suites

A suite makes sense when several people need the same data: keyword research, competitor analysis, backlinks, site audits and rank tracking in one login. The trade-off is price, since every tool in this group is a paid hosted subscription, so compare the free options further down before you commit.

1. Semrush: best for teams that want SEO, content and AI visibility in one platform

Semrush is an online marketing platform that covers SEO, paid search, content and social, with keyword research, rank tracking and competitor analysis at the core. The vendor now frames it as a way to measure brand visibility across traditional search, AI search, paid search and social channels.

Its tools are grouped by task: research (keywords, competitors, local SEO, AI visibility checks), creation and optimization (content tools, technical site health, digital PR) and tracking (rank tracking, reports, backlink analysis). Enlisted lists a free plan for trying it and paid tiers above that, and the vendor also offers API access. See the full Semrush entry.

• Best for: SEO teams and agencies that need research, tracking and reporting under one roof.
• Watch out for: it is hosted only and closed source, and the breadth means a small site owner pays for features they will not use.

2. Ahrefs: best for backlink analysis and keyword research

Ahrefs is an SEO toolset built around its own crawler, used for backlink analysis, keyword research with difficulty metrics, rank tracking and site audits. Marketers also use it to study competitors and content, and the company now extends its data into visibility in AI search.

A free tier exists for site owners (more in the free tools section below), with paid monthly plans above it. Ahrefs is a hosted subscription with published pricing and no self-hosted option, and its Enlisted page has the details.

• Best for: link building campaigns and keyword research for content strategy.
• Watch out for: the free access covers your own verified sites, not competitor research, so serious competitive work needs a paid plan.

3. Moz: best for agencies that also manage local listings

Moz is an SEO software suite spanning keyword research, site audits, link metrics and local business listings. Its lineup includes Moz Pro for general SEO, Moz Local for listings, STAT for enterprise rank tracking and an API, and the company is also known for the educational material it publishes about search marketing.

Moz offers a free trial, and a set of free tools covers domain analysis, keyword exploration, link exploration and the MozBar browser extension. Compare it on the Moz page.

• Best for: agencies and multi-location businesses that need listings management alongside SEO research.
• Watch out for: the suite has no free plan, only a trial, and listings management is a separate product from Moz Pro.

4. SE Ranking: best all-in-one suite for client reporting and multi-location tracking

SE Ranking is an all-in-one SEO platform for rank tracking, website audits, on-page checks, keyword research, competitor analysis and backlink checks from a single dashboard. It is organized around solutions for agencies, enterprises and growing businesses, and it adds tools for AI search visibility.

Enlisted lists it as a paid subscription with a free trial and no free plan. Its entry mentions tracking rankings across many locations and client reporting as typical uses. See the SE Ranking listing.

• Best for: agencies reporting rankings for several clients or locations.
• Watch out for: there is no free plan, so the trial is your only way to test it before paying.

5. Mangools: best for beginners who prefer focused tools over one big dashboard

Mangools is a bundle of beginner-friendly SEO tools: KWFinder for keyword ideas with volume and difficulty, SERPChecker for localized search results, SERPWatcher for rank tracking, LinkMiner for backlinks and SiteProfiler for domain metrics. Instead of one large dashboard, each tool does a single job.

It is a hosted subscription aimed at freelancers, bloggers and small businesses. See the Mangools page for the current pricing model.

• Best for: freelancers, bloggers and small sites that want approachable keyword and rank tools.
• Watch out for: it is a narrower toolkit than Semrush or Ahrefs, so teams that need deep competitive and backlink research may outgrow it.

Free SEO tools worth using

Free SEO tools are real, but each one is free for a specific reason: Google gives away its own data, some vendors give away a limited version of a paid product, and some tools are free for your own verified sites only. The two cards below are the ones to set up first. The list after them covers the rest.

6. Google Search Console: best free tool for your own site's search performance

Google Search Console is a free service from Google that shows how your pages perform in Google Search. Its performance reports list the queries that bring visitors, with impressions, clicks and average positions, and it helps with technical health: you can submit sitemaps, inspect how Google sees a URL, review indexing coverage and get alerts about problems.

You must verify ownership of a site before data appears. It only reports on your own properties and only for Google, so it does not replace a tool that shows competitors. Other Google options in the catalogue include Google Analytics, and the Google Analytics alternatives guide covers the traffic-measurement side.

• Best for: every site owner, as the baseline for queries, clicks and indexing problems.
• Watch out for: it has no competitor data and no keyword database, so it tells you how you perform rather than where to find new keywords.

7. Ubersuggest: best free-to-start keyword research for small businesses

Ubersuggest is an SEO tool from Neil Patel's company that offers keyword ideas with search volume and difficulty, a site audit, backlink data and rank tracking. It is positioned as a simpler, lower-cost alternative to the larger suites and is used mostly by small business owners, bloggers and freelance marketers.

Enlisted lists a free tier alongside paid plans, so check what the free side limits before you rely on it. See the Ubersuggest entry.

• Best for: bloggers and small business owners who want approachable keyword and audit data.
• Watch out for: it is a lighter tool than the enterprise suites, and the free tier is a sampler rather than a full workflow.

More free SEO tools

• Ahrefs Webmaster Tools: according to Ahrefs, it is free for websites you verify, with web analytics, a site audit and a view of your organic rankings and backlinks. The free tier has monthly limits.
• PageSpeed Insights: a free Google service at pagespeed.web.dev that analyzes web page performance on mobile and desktop. It is not in the Enlisted catalogue.
• Screaming Frog SEO Spider: a free version crawls up to 500 URLs, enough for a small site audit.
• SEO PowerSuite: a downloadable desktop toolkit with a free edition that has limits.
• AnswerThePublic: shows the questions people ask about a keyword, with a limited free daily allowance.
• Rank Math and All in One SEO: WordPress plugins with free versions.

Free tiers are designed to lead to paid plans, so check which limits matter to you (crawl size, searches per day, number of tracked keywords) before building a workflow on one.

Best SEO tools for technical audits

A technical audit crawls your site and lists what a search engine would stumble on: broken links, redirect chains, missing titles, duplicate content and pages blocked from indexing. Both crawlers below can run on your own machine, and Sitebulb also offers a cloud version.

8. Screaming Frog SEO Spider: best desktop crawler for audits and migrations

Screaming Frog SEO Spider is a desktop website crawler for Windows, macOS and Ubuntu that follows the links on a site much as a search engine would. It reports broken links, redirect chains, page titles, meta descriptions, headings, duplicate content, response codes and indexability problems, and it can render JavaScript.

It comes from a UK digital marketing agency, and the same company sells a Log File Analyser. A free version with a crawl limit is available, with a paid per-user licence for full use. The Screaming Frog page has the details.

• Best for: consultants and agencies auditing client sites or checking redirects before a migration.
• Watch out for: it is a data-heavy desktop tool, so expect to learn what each report means, and the free version stops at a fixed crawl size.

9. Sitebulb: best crawler for explanations and prioritized recommendations

Sitebulb is a website crawler that turns a crawl into prioritized hints, with an explanation of why each issue matters and how serious it is. That makes it friendlier than a raw data export for people who are still learning technical SEO.

It comes in two forms: Sitebulb Desktop for Windows or Mac, and Sitebulb Cloud, which runs in a browser for scheduled crawls, collaboration and automated reports. It can crawl JavaScript-heavy pages, compare audits over time and connect to Search Console. Enlisted lists it as paid with a free trial. See the Sitebulb entry.

• Best for: in-house teams and agencies that want issues ranked by importance.
• Watch out for: there is no free version, only a trial, so smaller sites may prefer Screaming Frog's free edition.

Best SEO tools for rank tracking

Rank trackers watch where your pages appear for chosen keywords. Suites such as SE Ranking and Mangools (SERPWatcher) include tracking, but a dedicated tool can refresh more often and handle larger keyword sets.

10. AccuRanker: best dedicated rank tracker for agencies and large keyword sets

AccuRanker is a rank tracking tool that refreshes keyword positions daily for agencies, enterprises and consultants. Its product page lists reporting, a keyword research database, tagging, an API, SERP analysis and forecasting, and free tools include a live SERP checker.

It is hosted, with plans organized around agencies, enterprises and consultants and no free plan. The AccuRanker page has the pricing model. If you want tracking by search engine, location and device, Advanced Web Ranking is another dedicated tracker in the catalogue.

• Best for: agencies and enterprise teams monitoring large keyword sets with daily refreshes.
• Watch out for: it does one job, so you still need a separate tool for keyword research and audits.

Best open-source and self-hosted SEO tools

Open-source SEO software is rare because the data is the expensive part: rankings and backlinks come from crawling the web or scraping search results. The tools below are open source but still depend on a data source you pay for or supply yourself.

11. OpenSEO: best open-source alternative to Semrush and Ahrefs

OpenSEO is an MIT-licensed SEO tool presented as an open-source alternative to Semrush and Ahrefs, for people who find those suites too expensive or too bloated. It covers keyword research, rank tracking, competitor analysis, backlink checks, site audits and AI visibility, and it exposes an MCP server so AI agents can work with your SEO data.

The data comes from DataForSEO. You supply your own API key and pay for what you consume, on a pay-as-you-go model, so the software is open but the data is not free. It can be self-hosted, and a hosted version is also available. Check the live card for recent activity and release history before you commit.

• Best for: technical users who want an SEO workflow without a per-seat suite subscription.
• Watch out for: you pay DataForSEO for the data, and its feature set is narrower than a mature suite.

Two other open-source projects are worth knowing. SerpBear is an MIT-licensed search engine position tracker with email notifications, an API and Google Search Console integration; its README says it is self-hostable with Docker and fetches results through third-party scraping services or your own proxies. OpenSERP is an MIT-licensed, self-hosted search results API and CLI that returns structured results from several search engines, which can serve as a backend for your own rank tracking. SerpBear is not in the Enlisted catalogue yet.

Best SEO plugin for WordPress

12. Rank Math: best free WordPress SEO plugin for guided on-page optimization

Rank Math is a WordPress plugin that adds on-page SEO checks, schema markup, sitemap and indexing controls, keyword rank tracking and AI-assisted suggestions. It is modular, so you switch on only the features you need, and it can import settings from other SEO plugins in one click.

A free version is available, with paid tiers above it. All in One SEO is the closest alternative in the catalogue, with sitemaps, a schema generator, a redirection manager and Search Console statistics in the WordPress dashboard. If you are choosing the platform itself, see the best CMS platforms guide, and for stores, the best ecommerce platforms.

• Best for: WordPress site owners who want guided checks inside the editor.
• Watch out for: it only works on WordPress, and on-page scores do not replace keyword research or competitor data.

More SEO tools worth a look

• Surfer: an on-page editor that scores a draft against pages that already rank, now also positioned around AI search visibility.
• Frase: turns search results into content briefs and helps draft and optimize articles.
• Serpstat: an SEO and PPC research platform with keyword, backlink and audit tools, positioned as a more affordable suite.
• SEOptimer: a website audit tool with white-label reports for agencies.
• Keywords Everywhere: a browser extension that shows keyword volume and related terms.
• seoClarity: an enterprise SEO platform with rank tracking, audits and analytics.
• Backlink Dog: monitors your backlinks and alerts you when links disappear.

More tools are in the marketing and SEO category.

How to choose the best SEO tools

Pick the job first, then the tool. Most small sites need Search Console and one more tool.

A sensible stack for a small site is Search Console, a free crawler and one paid keyword tool when the free tiers run out. Agencies tend to settle on one suite plus a dedicated crawler. Because several suites now add AI-search visibility tracking, check what each plan actually includes before paying for it, since vendors describe that feature differently.