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Best Website Optimization Tools in 2026

Website optimization tools help you review site performance, find issues, study visitor behavior, and test changes. This list covers services and software for teams or individuals choosing a tool on a budget.

  1. 1

    Contentsquare

    by Contentsquare
    Free plan AndroidAPIExtension+2
    7.6 Free plan · 15-day trial Visit site
  2. 2

    Fullstory

    Free plan AndroidAPIExtension+2

    Fullstory combines behavioral analysis, session replay, and privacy controls across web and mobile. The free plan and trial have defined session, seat, and retention limits to consider.

    7.5 Free plan · 14-day trial Visit site
  3. 3

    Ahrefs

    by Ahrefs
    Free plan APIWeb

    Ahrefs covers core SEO research and auditing alongside APIs and content tools.

    7.4 Free plan · paid from $29/mo Visit site
  4. 4

    Crazy Egg

    by Crazy Egg
    Free plan APIExtensionWeb

    Crazy Egg brings heatmaps, recordings and conversion tools into one website analytics offering.

    7.4 Free plan · paid from $29/mo (annual) · 30-day trial Visit site
  5. 5

    Lighthouse

    Free plan APIExtensionLinux+3

    Lighthouse offers several ways to audit web pages and provides reports with results and guidance.

    7.3 Open source Visit site
  6. 6

    Google Search Console

    Free plan APIWeb

    Search Console provides search performance reporting alongside tools for crawling, indexing, and site issue monitoring at no charge.

    7.1 Free plan Visit site
  7. 7

    GTmetrix

    Free plan APIWeb

    Choose GTmetrix for detailed page diagnostics, recurring checks, and options to test from multiple locations and devices.

    7.1 Visit site
  8. 8

    Microsoft Clarity

    Free plan AndroidExtensioniPhone

    Clarity offers a broad set of behavior analytics features without traffic limits or a listed charge. Its 30-day recording retention is worth factoring into how teams review session data.

    7.1 Free plan Visit site
  9. 9

    Screaming Frog SEO Spider

    by Screaming Frog SEO Spider
    Free plan APILinuxMac+2

    SEO Spider offers technical crawling, JavaScript rendering, data extraction, and integrations across Linux, macOS, and Windows.

    7.1 Free plan Visit site
  10. 10

    Smartlook

    by Smartlook
    Free plan AndroidAPIiPhone+1

    Smartlook offers recordings and event analytics across web and mobile, with funnels, heatmaps, and crash reports. Its scheduled wind-down and support dates should factor into any decision to use it.

    7.0 Free plan · pricing on request Visit site
  11. 11

    Inspectlet

    by Inspectlet
    Free plan Web

    Inspectlet pairs session recordings and heatmaps with testing, funnel, form, and error-analysis tools. The free plan has clear session and retention limits; paid plans start at $39 a month.

    6.9 Free plan · paid from $39/mo Visit site
  12. 12

    Semrush

    by Semrush
    Free plan API
    6.7 Free plan · 7-day trial Visit site
  13. 13

    AB Tasty

    Free trial AndroidAPIExtension+4

    AB Tasty combines experimentation and rollout tools with personalization, feature management, and analytics across web and mobile.

    6.6 Pricing on request Visit site
  14. 14

    Convert Experiences

    Free trial AndroidAPIiPhone+1

    Choose Convert Experiences if you need varied web and mobile experiments, advanced targeting, and full-stack SDK options.

    6.5 15-day trial Visit site
  15. 15

    Kameleoon

    Free trial AndroidAPIiPhone+1

    Choose Kameleoon if your teams need experimentation across web, back-end, and mobile, with feature rollout controls and integrations.

    6.3 From $495/mo · 30-day trial Visit site
  16. 16

    Optimizely Experimentation

    Free plan AndroidiPhoneWeb

    Optimizely Experimentation offers a range of web and mobile testing approaches and feature flags. Its free Rollouts plan has unlimited flags but permits one experiment at a time.

    6.3 Free plan Visit site
  17. 17

    Pingdom

    Free trial AndroidAPIExtension+2

    Pingdom covers synthetic checks, real-user performance data, alerts, and public status pages. Its 30-day trial offers a way to evaluate the listed monitoring capabilities before requesting pricing.

    6.1 Pricing on request · 30-day trial Visit site
  18. 18

    Sitebulb

    by Sitebulb
    Free trial ExtensionMacWeb+1

    Sitebulb focuses on auditing websites and researching keywords, with plan limits that scale from 10,000 to 10 million URLs.

    6.0 14-day trial Visit site
  19. 19

    Botify

    by Botify
    Paid APIExtensionWeb

    Choose Botify if your team needs search analytics alongside AI visibility and automated content and site actions.

    5.9 Pricing on request Visit site
  20. 20

    Glassbox

    by Glassbox
    Paid AndroidAPIiPhone+2

    Glassbox combines session review and rage-click detection across web and mobile platforms. Plan allowances and replay retention are specified, but prices are available only on request.

    5.9 Pricing on request Visit site
  21. 21

    Lucky Orange

    Free trial Web

    Lucky Orange combines behavior analysis, recordings, and communication tools, with all features listed across its plan levels.

    5.8 From $32/mo (annual) · 7-day trial Visit site
  22. 22

    Sitechecker

    by Sitechecker
    Free trial APIExtensionWeb

    Sitechecker groups several SEO capabilities into four plans with distinct stated audiences and allowances.

    5.8 14-day trial Visit site
  23. 23

    VWO Testing

    Free trial AndroidAPIiPhone+2

    VWO Testing brings experiment creation, targeting, and measurement into one platform, with options for web and mobile use.

    5.8 Pricing on request · 30-day trial Visit site
  24. 24

    Lumar

    by Lumar
    Paid APIWeb

    Choose Lumar if an enterprise-scale digital team needs auditing, monitoring, QA automation, and optimization reporting in one platform. Lumar sets project and crawl limits to customer requirements.

    5.4 Pricing on request Visit site
  25. 25

    WebPageTest

    Free plan Web
    5.4 Free plan Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

Compare the free plan, paid starting price, optimization focus, site audits, A/B testing, page speed monitoring, and tracked-site limits. Check trial terms, supported platforms, and the licence if reading or changing code matters to you.

Questions

Which website optimization tools have a free plan?

Google Search Console and Fullstory have free plans. GTmetrix also lists a free plan; check its current limits and paid options.

Which tools offer a free trial?

Fullstory lists a 14-day trial, Convert Experiences a 15-day trial, and DebugBear a 14-day trial. GTmetrix lists a free trial without a stated duration.

What platforms are supported?

Platforms represented in this category include web, API, iOS, Android, browser extension, and self-hosted software. Check a tool's platform details before choosing.

What should I compare before choosing a tool?

Compare free plan access, paid starting price, optimization focus, site audits, A/B testing, page speed monitoring, and tracked-site limits.

Can I read or change the source code?

Check the tool's licence and platform details. A self-hosted option may suit code access needs, but licence terms determine what you can do.

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