Must-Have On-Page SEO Tools & Software [Free & Paid]

Latest update: June 7, 2025

After over 4 years in SEO, juggling client projects and internal campaigns, I’ve seen the full range of on-page SEO tools. From Surfer SEO and Moz On-Page Grader to lesser-known gems like Rank Math and Frase, I’ve tested what works and what doesn’t.

In this article, I’ll share 8 tools I’ve used and recommend. These are a mix of free and paid options that have helped me save time, fix problems, and get sites ranking better. If you’re after tools that work and don’t waste your time, keep reading.

How the Tools Were Selected?

After years of hands-on SEO work, I know how overwhelming it can be to sort through endless options for on-page tools. So, I kept it simple and focused on three key things when picking this top 8 list.

Usability comes first. I chose tools that don’t feel complicated or confusing, so they’re easy to use for anyone, from complete beginners to experienced SEOs. Then, I checked the trust factor, checking what people were saying about them, looking at reviews from users on sites like G2 and Capterra. Finally, I looked at the cost, picking a mix of free and paid tools that provide value without being too pricey.

8 Best On-Page SEO Tools & Software 

Check the table below for a quick comparison of the nine top options. It highlights what each tool does best, the starting price, and how real users rate them on trusted platforms like G2 and Capterra.

Now let’s review each tool in detail. 

1. Moz On-Page Grader

Moz On-Page Grader is a straightforward yet powerful tool designed to help you improve your search rankings by analyzing individual pages on your website. Part of the Moz Pro suite, it evaluates 27 key on-page SEO factors to give you a clear picture of what’s working and what’s not.

This is how you use it: enter the URL and target keyword, and you’ll get a score out of 100. Alongside the score, it generates a detailed, prioritized checklist of areas to improve. The explanations are clear and often include code snippets or specific steps you can take to fix issues.

As you make changes, the tool updates your score in real-time, so you can track your progress and see how your improvements are impacting your SEO performance.

You don’t need to jump between different platforms to handle other SEO tasks, since the tool is integrated into Moz Pro, giving you access to a complete suite that covers everything from keyword research and site crawling to link analysis.

Users on G2 have given Moz Pro a 4.3 out of 5 rating based on over 560 reviews, while Capterra reviewers have rated it 4.5 out of 5 from nearly 350 ratings, reflecting its solid performance and user satisfaction.

That’s why it works so well for both marketers working on individual pages and SEO specialists managing multiple sites. It highlights what’s worth fixing and shows how those changes directly affect your site’s visibility.

Best for:

• Content marketers needing a clear, actionable on-page SEO checklist
• Small business owners wanting to improve individual page performance
• SEO professionals handling client website optimization
• Freelancers providing page-specific SEO improvements
• Marketing teams requiring an easy-to-use tool with clear guidance

Alternatives:

• Semrush – starting at $139.95/month; full SEO suite with competitor insights.
• Ahrefs – starting at $129/month; advanced backlink and keyword research.
• AccuRanker – starting at $132/month; specialized rank tracking solution.
• Google Search Console – free; limited but essential Google-provided tool.
• Wix SEO Wiz – free with Wix; beginner-friendly SEO setup for Wix users.

Plans:

• Starter ($49/month) – Ideal for one site, 50 tracked keywords, 20K pages crawled
• Standard ($99/month) – Expands to 3 tracked sites, 300 keywords, 400K crawls
• Medium ($179/month) – 10 sites, 1,500 keywords, 2M crawls, plus branded reports
• Large ($299/month) – 25 sites, 3,000 keywords, 5M crawls, maximum data access

2. Rank Math

Rank Math is another powerful SEO plugin built for WordPress users who want to streamline their on-page optimization. 

It’s packed with features like keyword tracking, SEO analysis, schema markup, and automated image SEO—all wrapped into a simple interface that’s easy to use.

The setup wizard configures most aspects for you, and the plugin offers deep integration with Google Search Console, along with a built-in keyword rank tracker, to help you stay on top of your SEO performance. 

It’s also flexible enough to migrate from other plugins like Yoast in a single click

You can start with the free version, which is already loaded with features, or upgrade to the Pro plan if you need more capacity. 

On G2, Rank Math holds a strong 4.8/5 rating, and Capterra users give it 4.5/5, praising its rich feature set, ease of use, and the excellent support team. 

If you’re looking for an affordable and feature-rich SEO plugin for WordPress, Rank Math is a solid contender.

Best suited for:

• Marketing teams driving high-volume SEO campaigns
• Admin and operations professionals managing multiple client sites
• Freelancers and solo business owners handling their SEO
• Sales and business development teams tracking performance metrics
• Entrepreneurs scaling their online presence across multiple platforms

Similar tools to consider:

• Semrush – from $139.95/month
• Ranktracker – starting at $14/month
• AccuRanker – plans begin at $132/month
• AIOSEO – plans start at $49.60/year (basic) 
• SEOPress – plans start at $49/year (SEOPress PRO)
• Slim SEO – plans start at $59/year (Personal) 

Pricing plans:

• PRO ($6.99/month) – Perfect for bloggers and solopreneurs, with unlimited personal sites, 500 tracked keywords, AI credits, schema tools, and SEO performance insights.
• Business ($20.99/month) – Best for freelancers and small teams, supporting up to 100 sites, 10,000 tracked keywords, advanced schema, external linking, and priority support.
• Agency ($49.99/month) – Designed for larger agencies handling 500 sites and 50,000 keywords, with premium SEO tools, automated sitemaps, in-depth analytics, and advanced support.

3. SEOptimer

SEOptimer is a simple, no-fuss tool for checking how well your website is doing. 

With just a few clicks, it scans your site and gives you straightforward suggestions to improve things like meta tags, page speed, and overall performance.

One thing I like about SEOptimer is its white-label reports. If you’re working with clients, you can easily brand the reports with your logo and colors, making you look super professional. 

You can even add a form to your website to collect leads from people who want a free audit. It also offers some extras, like basic keyword tracking, backlink research, and a dashboard that’s easy to figure out. 

There’s a 14-day free trial that covers the basics, and if you need more, you can choose the DIY SEO plan or the White Label plan to generate SEO reports with your branding, covering multiple sites and languages. 

Then there’s also the White Label & Embedding plan, which allows you to design a lead-generating audit form.

A lot of users like how simple and quick it is to set up, with ratings around 4.6/5 on G2 and 4.7/5 on Capterra. 

It’s a solid option if you’re new to SEO or running a small agency, though it focuses more on audits than advanced SEO tools.

Best suited for:

• Small businesses wanting simple SEO tools and reports
• Digital marketing agencies looking to generate white-label audits
• Freelancers needing actionable SEO insights for clients
• Web designers and marketers tracking SEO improvements
• Developers and researchers using SEO APIs for data analysis

Similar tools to consider:

• Mangools – starting at $14.95/month
• Semrush – from $139.95/month
• SE Ranking – starting at $52/month
• Moz Pro – starting at $49/month
• SpyFu – from $39/month
• Ahrefs – starting at $129/month

Pricing plans:

• DIY SEO ($29/month) – Great for personal or business websites, includes site audits, task tracking, and ranking reports.
• White Label ($39/month) – Adds customizable PDF reports with your branding, multi-site crawling, and multi-language support.
• White Label & Embedding ($59/month) – Includes everything in White Label, plus embeddable audit forms to capture leads directly from your site.

4. PageOptimizer Pro

PageOptimizer Pro, or POP, is a solid tool for anyone looking to fine-tune their content for better rankings. 

Created by SEO pro Kyle Roof, it takes a research-based approach, checking over 300 factors to give you clear, practical steps to improve your pages.

One thing that stands out is how POP makes content creation easier. It gives you ready-made content briefs and smart optimization suggestions, so you can create content that not only reads well but also hits the right SEO signals. 

It even has features like Nextgen EEAT™ and POP NLP™, which help you align with Google’s focus on expertise, trust, and proper entity usage.

If you want, you can hook it up to your own GPT-4 API key and generate optimized content without spending extra. Plus, the POP Watchdog™ keeps an eye on your pages and lets you know if anything changes or needs fixing.

It’s got strong reviews on review sites, with 5.0/5 on Capterra and 4.9/5 on G2. 

Many users like its clear, data-backed advice and say it’s helped them move up in the rankings, especially for competitive keywords.

Best suited for:

• Marketing teams refining content for search engines
• SEO consultants and professionals managing on-page optimization
• Entrepreneurs fine-tuning their site’s SEO performance
• Content creators ensuring Google-friendly content
• Web designers and creatives aiming for well-structured SEO

Similar tools to consider:

• Ahrefs – from $129/month (Lite)
• Screpy – starts at $10/month (Lite Plan)
• AccuRanker – from $132/month
• Frase – starts at $45/month (Basic)
• SE Ranking – starts at $52/month (Essential)

Pricing options:

• Basic ($37/month) – Includes unlimited domains, 20 POP credits, POP AI Writer, and core optimization tools.
• Best for Professionals ($56/month) – Unlimited reports, keyword tools, and 50 POP credits; billed annually for savings.
• Teams ($108/month) – Designed for teams with 5+ sub-accounts, unlimited reports, 120 POP credits, and all pro features.
• White Glove (from $225) – A full-service package with dedicated support, content planning, audits, and SEO optimization delivered for you.

5. Frase.io

Frase brings together SEO, AI, and content creation in one streamlined platform. By connecting with Google Search Console, it offers real-time insights into how your content is performing.

This tool is built to simplify the process of researching, writing, and optimizing content so it aligns with searcher intent and climbs the rankings.

With Frase, you can analyze search results, pull in existing content for updates, and create Rank-Ready AI documents that save time.

The dashboard isn’t just another interface—it gives you clear, actionable insights, tracks your content’s progress, and highlights areas where improvement matters.

Frase also makes it easy to keep content on-brand and consistent across teams. You can assign projects, use custom templates, and integrate governance features so everyone is on the same page. The platform is intuitive enough for new users and powerful enough for experienced marketers.Users have praised Frase for its fast, AI-driven approach to generating detailed content briefs and outlines. Many love how the real-time scoring system and optimization tips help content teams stay focused on what actually works.

Frase’s performance has earned it a 4.8/5 rating on both Capterra (334 reviews) and G2 (296 reviews), showing how much users value its features and usability.

Best for:

• Content marketers and writers aiming to scale high-quality SEO content
• Small businesses seeking an affordable SEO and AI content solution
• Marketing agencies looking for collaborative content optimization tools
• SEO professionals and consultants focused on organic performance
• Digital strategists managing content governance and brand voice

Alternatives:

• Semrush – from $139.95/month; comprehensive SEO suite with competitor research tools
• Scalenut – from $20/month; AI-driven SEO content creation platform
• Writesonic – from $16/month; AI writing assistant for various content needs
• Copy.ai – from $49/month; AI tool for marketing and creative teams
• Jasper – from $39/month; popular for AI-generated content

Plans:

• Basic ($45/month) – 1 user, 30 research docs, unlimited AI words, 1 site tracking, pay-as-you-go, Rank-Ready docs
• Team ($115/month) – 3 users, unlimited research docs and AI words, multiple sites, advanced collaboration tools
• Enterprise (custom pricing) – For large teams needing scalability, custom features, and top-tier support

6. SEO Powersuite: WebSite Auditor

WebSite Auditor is a desktop-based SEO powerhouse designed to help marketers, webmasters, and agencies identify and fix on-page SEO issues while improving site structure.

It’s packed with tools for technical audits, content analysis, Core Web Vitals checks, and even SEO-friendly content editing, all from one platform.

The interface is easy to navigate, even when handling advanced tasks like crawling JavaScript-heavy pages, auditing password-protected areas, generating XML sitemaps and robots.txt files, and running TF-IDF keyword analyses to improve topical relevance.

The SEO Spider module mimics search engine bots, surfacing hidden issues such as broken links, redirects, or missing structured data. 

Meanwhile, the built-in Content Editor allows you to fine-tune page content right inside the tool.

WebSite Auditor’s visual site structure diagrams and customizable reports help convey progress and results to clients or stakeholders, making it a go-to choice for teams managing complex projects. 

Its combination of depth and clarity makes it especially handy for large-scale site management, while its performance has earned it a 4.5 out of 5 rating on G2 (553 reviews) and the same 4.5/5 rating on Capterra (379 reviews via the SEO PowerSuite suite). 

Users appreciate its comprehensive approach and strong analysis capabilities, though some note its interface feels a bit dated and can slow down with massive sites.

Best for:

• SEO agencies managing large websites or multiple clients
• Technical SEOs needing deep site crawling and advanced customization
• Digital marketing teams focused on improving site structure and performance
• Webmasters looking for a one-stop SEO audit solution
• Enterprises with complex site architectures and localization needs

Alternatives:

• Semrush – from $139.95/month, for comprehensive SEO tools
• SE Ranking – from $52/month, offering audits, tracking, and competitive analysis
• Moz Pro – from $49/month, with SEO management and reporting features
• Ahrefs – from $129/month, focusing on backlinks and content analysis
• Serpstat – from $50/month, balancing site audits, keyword data, and competition tracking

Plans:

• Free Forever – Access unlimited evaluation with the ability to work on one project, audit up to 500 URLs, track and analyze 1,100 backlinks, and monitor one competitor. No saving of data, but fully usable for as long as you like.
• Professional ($29.10/month, billed yearly) – Designed for small businesses, this plan unlocks unlimited projects, keyword tracking, complete site audits, unlimited backlinks, up to 5 competitors per project, and powerful tools like 20+ keyword research features, in-app optimization, Dropbox integration, and more.
• Enterprise ($49.95/month, billed yearly) – Built for SEO pros and agencies, this plan includes all Professional features plus white-label SEO reports, advanced report customization, automated report delivery, one-click sharing, full data export options, and priority support.

7. Screaming Frog SEO Spider

Screaming Frog SEO Spider is a desktop-based crawler trusted by thousands of SEO pros, agencies, and marketers around the world. 

Its flexible and detailed approach makes it a go-to for uncovering technical SEO issues—everything from broken links and duplicate content to redirects, metadata problems, and site structure issues.

No matter the size or complexity of a website, Screaming Frog handles the job. It’s equally at home crawling a simple blog or a massive JavaScript-heavy site built on frameworks like React, Angular, or Vue.js. 

The tool doesn’t just gather data—it helps you understand it, with detailed reports and visualizations that reveal where improvements can be made.

You can pull in data from Google Analytics, Google Search Console, and PageSpeed Insights, giving you a complete picture of site performance. 

The integration with these platforms helps you connect technical SEO efforts with broader site metrics, making the insights even more valuable.

Screaming Frog’s popularity isn’t just hype. It’s well-earned a 4.9/5 rating on Capterra (132 reviews) and 4.7/5 on G2 (95 reviews), with users praising its depth, flexibility, and speed. 

Some have pointed out that the learning curve can be steep, and it might slow down when crawling very large sites, but for most, its capabilities far outweigh these challenges.

Best for:

• Technical SEO professionals handling deep site audits
• Agencies managing complex client sites
• Webmasters and developers troubleshooting site issues
• Marketing teams maintaining technical SEO standards
• E-commerce and enterprise sites with dynamic content

Alternatives:

• Ahrefs – from $129/month for comprehensive SEO, backlink analysis, and site audits
• SEO PowerSuite – starting at $29.10/month, offering a full suite of site audit and tracking tools
• Semrush – starts at $139.95/month for all-in-one SEO and marketing tools
• Sitechecker.pro – from $119/month for site monitoring and optimization
• Seodity – starts at $41/month for detailed site and keyword analysis

Plans:

• Free Version – Crawl up to 500 URLs per site with limited features
• Paid License ($279/year) – Unlock unlimited crawling, advanced features like JavaScript rendering, custom data extraction, and integration with Google tools
• Bulk Licenses – Discounts available for multiple users: $270/license for 1–4, $256 for 5–9, $243 for 10–19, and $279 for 20+
• Annual Renewal – Licenses renew yearly to keep access to new features and updates

8. Yoast SEO

If you’re using WordPress or Shopify, Yoast SEO is an easy go-to for managing your on-page SEO.

With Yoast, you have all the tools you need to stay on top of things, like real-time SEO feedback while you write, automatic redirects, and internal linking suggestions to keep your content flowing smoothly.

Its AI-powered features help create optimized titles, meta descriptions, and content outlines, taking a lot of the manual guesswork out of SEO. The plugin also handles technical SEO in the background, so you don’t have to tinker with settings or code.

Yoast SEO offers a free version with solid core features, while Yoast SEO Premium unlocks advanced tools like multiple keyword targeting and 24/7 support. On G2, it holds a 4.5/5 rating, and Capterra users give it a 4.6/5, praising its user-friendly design and how seamlessly it fits into WordPress. 

Some users mention that the premium price might feel a bit high, but overall, it’s a solid choice for content creators who want to optimize without overcomplicating their workflow.

Best suited for:

• Marketing teams aiming to improve site structure and readability
• Admin professionals keeping SEO in check across projects
• Designers and creatives ensuring on-page elements align with SEO best practices
• IT and software teams integrating SEO features into platforms
• Sales and business development teams tracking and enhancing website performance

Similar tools to consider:

• Sitechecker.pro – starting at $119/month
• Seodity – plans start at $41/month
• Semrush – from $139.95/month
• Ranktracker – starts at $14/month
• AccuRanker – plans begin at $132/month

Subscription options:

• Yoast Plugin Subscription ($229/year) – Covers all premium features, including WooCommerce SEO, Local SEO, News SEO, Video SEO, plus all plugins and updates.
• Yoast SEO Premium ($99/year) – Provides full access to advanced SEO features and the Yoast SEO Academy.
• Yoast SEO Free ($0) – Basic SEO functionality available at no cost.

Final Thoughts

As always, choosing the right on-page SEO tool comes down to your specific needs and budget. Some tools, like Screaming Frog and WebSite Auditor, dig deep into technical audits, while others, such as Frase, focus more on content strategy and optimization. Also, tools like Rank Math and Yoast SEO integrate seamlessly with WordPress, making them solid picks for site owners and bloggers.

The key is to find a tool that matches your workflow and helps you get results without adding complexity. I’m sure you’ll do your best!