9 Best Semrush Alternatives for SEO & GEO (Free & Cheap)

Semrush moved to its "One" lineup in 2026, and the entry price moved with it: the cheapest plan is now $139/month. If that number made you flinch, this guide is for you. We priced the best Semrush alternatives from their official pages this week — free ones, cheaper ones, and agency-grade picks. These nine tools like Semrush cover keyword research, competitor analysis, backlinks, and the newest gap: AI search visibility.

TL;DR — Top 6 Semrush Alternatives Worth Trying

Six Semrush alternatives that each replace one thing well:

Tool	Best as	Price from
Google Search Console	Best Semrush free alternative for on-page data	$0
Kairosy	Top Semrush alternative for AI search & GEO	$29/mo
Ahrefs	Full feature swap for agencies	$29/mo (Starter)
Ubersuggest	Budget keyword research for small business	$29/mo or $290 lifetime
SE Ranking	Best Semrush API alternative	$129/mo (API included)
AITDK	Free extension to replace SEOquake	$0

What Are the 5 Semrush Features You Would Need to Replace?

Semrush bundles five jobs into one login. Knowing which you actually use tells you which of the Semrush competitors below you need — most teams lean on two or three.

• Keyword research: volume, difficulty and intent data — the feature most people mean by "Semrush".
• Competitor analysis: any domain's estimated traffic, top pages and paid spend.
• Backlink exploring: referring domains, anchors and new-vs-lost links for any site.
• AI visibility tracking: whether ChatGPT and other engines mention your brand and which prompts you win — now bundled into the One plans, not sold separately.
• SEOquake: the free on-page extension — still free, still maintained, no replacement required.

3 Semrush Free Alternatives for Keyword Research & Competitor Analysis (100% Free)

1. Google Keyword Planner for Free Keyword Research

Keyword Planner lives inside Google Ads and answers the volume question with Google's own numbers. You need an Ads account, not an ad budget. Volumes come as rounded estimates, competition is graded low/medium/high, and the bid columns show the 20th/80th percentile of what advertisers actually paid — an honest proxy for commercial intent.

Best for: SEO and SEM specialists who want first-party Google data.

Pricing: $0.

Why it's a good Semrush alternative:

• Official keyword data: straight from the source every other tool models.
• New keyword discovery: feed it a competitor's URL and it extracts Google's keyword ideas for that page.
• Real bid economics: percentile bid ranges show what a click is worth.

What are the disadvantages:

• The data is broad: rounded buckets, and no keyword-difficulty score at all.
• Built for advertisers: the workflow assumes you are planning a campaign, not an editorial calendar.
• Account setup friction: some features stay locked until billing details are entered.

2. Google Search Console & GA4 for Free On-Page Improvements

Search Console plus GA4 is the strongest Semrush free alternative for your own pages: actual clicks, impressions, positions and conversions rather than estimates. GSC flags indexing and technical issues; GA4 follows what visitors did after the click.

Best for: SEO specialists and marketers in any industry.

Pricing: $0.

Why it's a good Semrush alternative:

• Accurate data: real queries and positions, no sampling model in between.
• Real feedback loops: fix a page, watch its impressions and average position respond within weeks.
• Continuous tracking: history logs automatically once connected — no scheduler, no quota.

What are the disadvantages:

• Manual key-event setup in GA4: conversions only exist after you mark events as key events yourself.
• Your site only: there is no competitor view — the half of Semrush this cannot replace.
• UI depth limits: the interface shows a slice; pulling everything means the API or bulk exports.

3. Bing Webmaster Tools for Free Backlink Exploring

The best-kept secret in free SEO: Bing Webmaster Tools shows backlinks for any site, not just your own — plus a "Similar sites" view comparing your profile against up to two competitors, anchors included. A real slice of what Semrush charges for, at $0.

Best for: SEO specialists and marketers who need link data without a license.

Pricing: $0.

Why it's a good Semrush alternative:

• Backlinks to any site: competitor link research, not just your own audit.
• Side-by-side comparison: your profile against two rivals in one table, anchors included.
• Export included: link data comes out as files you can actually work with.

What are the disadvantages:

• You cannot jump to the source page: referring pages are named, but exploring them is manual.
• Verification required first: you must sign in and verify at least one site of your own before anything opens.
• Bing's index, not Google's: coverage is respectable but skews toward what Bing crawls.

4 Cheaper Alternatives to Semrush for AI Search, Keywords & Competitor Analysis (Pricing Compared)

4. Kairosy AI Reputation Checker to Replace Semrush's AI Search Features

Kairosy does one job Semrush now bundles into $139/month plans — and does it for $29. It asks ChatGPT, Gemini, Claude and Perplexity the questions real buyers ask about your brand, scores the sentiment, shows which sources each engine cited, and turns weaknesses into a prioritized fix plan. Weekly AI brand monitoring re-scans your brand and emails you when something new and negative appears; prompt tracking re-asks your buyer questions daily on Pro. One scan a month is free — full report, no card — and the free AI Crawl Checker shows what AI crawlers see on your site. Kairosy's scan of ClickUp is public: see a live example report.

Best for: GEO practitioners, small businesses, and anyone who wants their AI presence measured and improved.

Pricing: free scan monthly; paid from $29/mo (Basic), $99/mo (Pro), $399/mo (Growth).

Why it's a good Semrush alternative:

• Actionable fix plans: ranked, concrete tasks — which page to change and what to put on it.
• Affordable next to the bundle: AI-search tracking inside Semrush means a One plan from $139/month; Kairosy starts at $29.
• Evidence you can check: the AI's own words and real cited sources, across 25 country markets on paid plans.

What are the disadvantages:

• Not a rank tracker: there is no keyword-volume database or SERP position tracking — it measures AI answers, not Google rankings.
• No backlink index: pair it with Bing Webmaster Tools or Ahrefs for link work.
• One free scan a month: testing several brands on the free tier means waiting or upgrading.

5. Ubersuggest for Budget Keyword & Content Research

Ubersuggest is the classic budget pick: keyword ideas, content suggestions, basic audits and rank tracking in a deliberately simple interface. Pricing is the argument — $29/month, or a $290 one-time lifetime deal no major rival matches. A free account gets three searches a day.

Best for: small sites, solo SEOs, and small businesses that need answers more than depth.

Pricing: free (3 searches/day); $29/mo Individual, $49/mo Business, $99/mo Enterprise; lifetime from $290.

Why it's a good Semrush alternative:

• The lifetime option: a one-time payment for a keyword tool is unique at this level.
• Gentle learning curve: reports read like recommendations, not dashboards.
• 7-day trial on monthly plans: you can test the full product before the first charge.

What are the disadvantages:

• Shallow data next to Semrush: smaller index, simpler difficulty model, fewer filters.
• Daily search caps on every tier: even paid plans meter how many lookups you run per day.
• Aggressive upsells: the interface markets upgrades persistently.

6. SimilarWeb for Competitor Traffic Analysis

SimilarWeb answers Semrush's Traffic Analytics question — where any site's traffic comes from — with deeper engagement, audience and app data. The free layer is a real if shallow sample, no login wall.

Best for: marketers at small businesses and micro-brand owners sizing up rivals.

Pricing: free tools; Starter from $125/mo billed annually ($199 month-to-month).

Why it's a good Semrush alternative:

• Traffic intelligence first: visits, engagement and sources for any domain — the core of competitor analysis.
• Beyond websites: app analytics and audience data that Semrush barely touches.
• Free layer with no login: you can sanity-check a competitor's size in ten seconds.

What are the disadvantages:

• Paid tiers climb fast: the annual-billing Starter is $125/month, and country filters need higher plans.
• Estimates, not measurements: small-site numbers can swing far from reality.
• Not an SEO workbench: no keyword difficulty, no site audit, no rank tracker.

7. AITDK as the Semrush Extension (SEOquake) Alternative

AITDK is a free Chrome extension showing traffic estimates, whois, meta tags, heading structure, keyword density and link breakdown on any page — SEOquake's at-a-glance job with traffic data on top. The web version adds free AI SEO generators plus credit-based analysis.

Best for: SEOs and business owners who want page checks without opening a dashboard.

Pricing: extension free; web plans free (30 credits/mo), $10/mo Starter, $20/mo Pro.

Why it's a good Semrush alternative:

• More information on one screen: traffic, whois, on-page tags and link counts in a single popup.
• Genuinely free extension: the browser tool itself has no paywall.
• AI extras included: title, description and FAQ generators ride along at no cost.

What are the disadvantages:

• Traffic numbers are estimates: treat them as direction, not measurement.
• Credit metering on the web tools: heavier analysis burns through the free 30 credits quickly.
• Chrome only: no Firefox or Safari build of the extension.

What Are the Best Alternatives to Semrush for Agencies? 2 Picks with Bigger Budgets

8. Ahrefs for a Full Semrush Feature Swap

For replacing everything at parity, Ahrefs is where most agencies land: keywords, backlinks, audits, rank tracking, content research. The 2026 surprise is the low end — Starter is $29/month, over $100 under Semrush's cheapest, and free Webmaster Tools covers audits and links for your own verified sites.

Best for: agencies and marketing teams in larger businesses.

Pricing: Starter $29/mo, Lite $129/mo, Standard $249/mo, Advanced $449/mo; Webmaster Tools free for your own sites.

Why it's a good Semrush alternative:

• Best-in-class backlink index: why most professionals keep an Ahrefs seat.
• Real entry tier: $29 Starter makes the switch testable without a committee.
• Free tier for your own sites: Webmaster Tools handles audit and link basics at $0.

What are the disadvantages:

• Parity costs Lite or above: matching a Semrush workflow means $129+.
• Credit-based usage on lower tiers: heavy months can hit limits.
• AI-search tracking is an add-on: its Brand Radar AI starts at $199/month — pair with a cheaper AI tool instead.

9. SE Ranking API to Replace the Semrush API

For teams pulling SEO data into their own dashboards, SE Ranking is the best Semrush API alternative: API access is included in every plan — Core at $129/month ships with 25K credits — where Semrush treats API as an enterprise conversation. Endpoints cover keywords, domain analysis, backlinks, audits, rank tracking and AI-search visibility; pay-as-you-go starts at a $50 deposit.

Best for: SEO and GEO agencies automating reports.

Pricing: Core $129/mo, Growth $279/mo (API included in both); standalone API plans also available.

Why it's a good Semrush alternative:

• API in every plan: no enterprise gate between you and the data.
• Familiar data shape: keyword, SERP and rank endpoints map onto Semrush-style reports.
• AI Search API: brand visibility in ChatGPT, Gemini and Perplexity is queryable, not just viewable.

What are the disadvantages:

• Backlink depth trails Semrush: link-opportunity data is thinner than the big two indexes.
• Credits need budgeting: 25K sounds large until a bulk keyword job meets it.
• Two pricing paths: plan credits vs standalone API tiers takes a sales call to optimize.

FAQs on Semrush Alternatives

Is Semrush good for beginners?

Capable but heavy: it assumes SEO vocabulary, and at $139/month the learning period is expensive. Beginners get further on Ubersuggest or the free Google stack first.

Is there a cheaper alternative to Semrush?

Several of the best Semrush alternatives cost a fraction of it: Kairosy covers AI-search visibility from $29/month, Ahrefs Starter is $29, Ubersuggest runs $29 or a one-time $290 — all cheaper alternatives to Semrush for the feature they focus on.

Are Semrush and Ahrefs the same?

No — they overlap, but Ahrefs leads in backlink data while Semrush leads in breadth (PPC, social, bundled AI search). Agencies often run both.

Can I use Semrush for free?

There is a 7-day free trial on the standard plans, and SEOquake — Semrush's browser extension — stays free permanently. There is no free forever plan for the main platform.

How much does Semrush cost a month?

The 2026 "Semrush One" lineup starts at $139/month for the SEO plan billed monthly (about $117/month on annual billing), rising through Starter $199, Pro+ $299 and Advanced $549. AI-search features are bundled into these plans rather than sold separately.

Which Semrush Alternative Should You Try First?

The best Semrush alternatives start from the feature you actually pay for. For rankings and links, Ahrefs' $29 Starter or the free Google-plus-Bing stack carries you far. For reporting automation, SE Ranking's included API is the pragmatic swap. And if what you are buying in 2026 is visibility inside AI answers, a top Semrush alternative only needs to replace that one feature: run a free Kairosy scan and decide with the report in front of you.