Winning in search today means thinking beyond keywords — it means mastering AI. At Xponent21, we’re leading the charge in AI SEO, and we believe that knowledge shouldn’t be gatekept. That’s why we’ve built this AI SEO Tool Library: a powerful, curated collection of tools (many free) designed to help you learn faster, optimize smarter, and build real authority. Explore the exact resources we use to grow brands and unlock your own search success, one click at a time.
SEO ROI Tool
Calculate the potential ROI of your SEO strategy. Forecast traffic growth, conversion improvements, and revenue gains before you invest.
Pricing Model
Free
Starting Cost
$0/mo
Complete free to use courtesy of Xponent21.
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SE Ranking
Popular
SE Ranking is an all-in-one SEO platform with rank tracking, site audits, competitive analysis, content tools, and new AI tracking tools — everything in one intuitive dashboard.
Pricing Model
Free Trial
Starting Cost
$52.00/mo
Promotion: 20% Off Annual Subscription
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On-Page SEO Checker
Popular
From Xponent21: Instantly audit your website’s SEO health for free — uncover critical issues, improve rankings, and generate an actionable optimization plan in seconds.
Pricing Model
Free
Starting Cost
$0/mo
Free instant page score for SEO.
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SEO Snippet Expert GPT
AI-powered GPT by Xponent21 is designed to craft search-optimized featured snippets, meta descriptions, and concise answers that help you win top search positions.
Pricing Model
Free
Starting Cost
$0/mo
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Podcast Optimizer GPT
AI-powered GPT from Xponent21 that transforms your podcast episodes into SEO-optimized show notes, blog posts, and promotional content to boost reach and discoverability.
Pricing Model
Free
Starting Cost
$0/mo
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MVQ Finder Custom GPT
AI-powered custom GPT that identifies the most valuable questions your audience asks — perfect for SEO, content, and strategy planning.
Pricing Model
Free
Starting Cost
$0/mo
Free for use courtesy of Xponent21.
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AnswerThePublic
Visual keyword research tool that uncovers audience questions, searches, and ideas to guide your content and SEO strategy.
Pricing Model
Freemium
Starting Cost
$11.99/mo
Save up to 90% with a lifetime subscription.
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RankMath
The leading WordPress SEO plugin with AI-powered content suggestions, advanced schema, and automation to boost your search visibility.
Pricing Model
Freemium
Starting Cost
$7.99/mo
Take up to 17% off paid plans.
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Peec.ai
AI-powered platform to track your brand and content visibility in emerging AI search engines — stay ahead of competitors and own AI-driven SERPs.
Pricing Model
Free Trial
Starting Cost
$99/mo
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#1 PPC Budget Calculator
Estimate your ideal PPC ad spend, forecast results, and align your campaign strategy — a free tool built for today’s evolving, AI-influenced search landscape.
Pricing Model
Free
Starting Cost
$0/mo
Estimate your ad spend. Optimize your performance.
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