# The most used tools in every category Every tool runsonwhat tracks (1,418), grouped by where it sits in a company's stack, with the number of companies using the most used ones (October 2026). ## Edge & Hosting: where the bytes are served from ### [Hosting & Cloud](https://www.runsonwhat.com/tools/cloud-hosting.md) Where companies run their websites and apps: public clouds, app platforms and managed hosts. - [Amazon Web Services](https://www.runsonwhat.com/reverse/aws): 143,377 companies - [Google Cloud](https://www.runsonwhat.com/reverse/gcp): 74,035 companies - [WP Engine](https://www.runsonwhat.com/reverse/wpengine): 47,724 companies - [Hostinger](https://www.runsonwhat.com/reverse/hostinger): 46,661 companies - [Vercel](https://www.runsonwhat.com/reverse/vercel): 44,859 companies - [Microsoft Azure](https://www.runsonwhat.com/reverse/azure): 44,064 companies ### [CDN & Edge](https://www.runsonwhat.com/tools/cdn.md) Content delivery networks that cache and protect websites close to their visitors. - [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare): 662,875 companies - [Amazon CloudFront](https://www.runsonwhat.com/reverse/cloudfront): 48,485 companies - [Fastly](https://www.runsonwhat.com/reverse/fastly): 46,885 companies - [Akamai](https://www.runsonwhat.com/reverse/akamai): 19,287 companies - [Bunny.net](https://www.runsonwhat.com/reverse/bunny): 11,106 companies - [Tencent Cloud](https://www.runsonwhat.com/reverse/tencent-cloud): 735 companies ### [DNS](https://www.runsonwhat.com/tools/dns-providers.md) The services that host companies' DNS zones: registrars, managed DNS and cloud DNS. - [GoDaddy](https://www.runsonwhat.com/reverse/godaddy): 245,676 companies - [Amazon Route 53](https://www.runsonwhat.com/reverse/route53): 81,667 companies - [Namecheap](https://www.runsonwhat.com/reverse/namecheap): 18,781 companies - [NS1](https://www.runsonwhat.com/reverse/ns1): 11,860 companies - [Gandi](https://www.runsonwhat.com/reverse/gandi): 8,892 companies - [CSC](https://www.runsonwhat.com/reverse/csc-domains): 5,594 companies ## Application: what the product is built with ### [Frontend](https://www.runsonwhat.com/tools/frontend-frameworks.md) The JavaScript frameworks and CSS libraries companies build their websites with. - [jQuery](https://www.runsonwhat.com/reverse/jquery): 814,238 companies - [React](https://www.runsonwhat.com/reverse/react): 123,565 companies - [Tailwind CSS](https://www.runsonwhat.com/reverse/tailwind): 68,319 companies - [Next.js](https://www.runsonwhat.com/reverse/nextjs): 56,448 companies - [Vue.js](https://www.runsonwhat.com/reverse/vue): 50,242 companies - [Nuxt](https://www.runsonwhat.com/reverse/nuxt): 11,914 companies ### [Auth & Identity](https://www.runsonwhat.com/tools/authentication.md) Sign-in, single sign-on and identity platforms, for customers and for employees. - [Auth0](https://www.runsonwhat.com/reverse/auth0): 5,276 companies - [Microsoft Entra ID](https://www.runsonwhat.com/reverse/entra-id): 3,070 companies - [Okta](https://www.runsonwhat.com/reverse/okta): 1,750 companies - [Clerk](https://www.runsonwhat.com/reverse/clerk): 1,035 companies - [SAP Customer Data Cloud](https://www.runsonwhat.com/reverse/sap-customer-data-cloud): 810 companies - [WorkOS](https://www.runsonwhat.com/reverse/workos): 540 companies ### [Backend & Database](https://www.runsonwhat.com/tools/backend-databases.md) Backend-as-a-service, hosted databases, messaging APIs and workflow engines. - [Firebase](https://www.runsonwhat.com/reverse/firebase): 21,069 companies - [Supabase](https://www.runsonwhat.com/reverse/supabase): 6,496 companies - [Twilio](https://www.runsonwhat.com/reverse/twilio): 4,999 companies - [MongoDB Atlas](https://www.runsonwhat.com/reverse/mongodb): 2,798 companies - [Pusher](https://www.runsonwhat.com/reverse/pusher): 896 companies - [SAP BTP](https://www.runsonwhat.com/reverse/sap-btp): 198 companies ### [AI](https://www.runsonwhat.com/tools/ai-tools.md) Model providers, AI assistants, AI agents and the infrastructure around them. - [Anthropic](https://www.runsonwhat.com/reverse/anthropic): 57,813 companies - [OpenAI](https://www.runsonwhat.com/reverse/openai): 30,959 companies - [Perplexity](https://www.runsonwhat.com/reverse/perplexity): 1,288 companies - [Chatbase](https://www.runsonwhat.com/reverse/chatbase): 1,227 companies - [TollBit](https://www.runsonwhat.com/reverse/tollbit): 956 companies - [ElevenLabs](https://www.runsonwhat.com/reverse/elevenlabs): 782 companies ### [Payments & Billing](https://www.runsonwhat.com/tools/payments.md) Payment processors, subscription billing, merchants of record and usage-based billing. - [PayPal](https://www.runsonwhat.com/reverse/paypal): 33,069 companies - [Stripe](https://www.runsonwhat.com/reverse/stripe): 24,343 companies - [Klarna](https://www.runsonwhat.com/reverse/klarna): 4,594 companies - [Amazon Pay](https://www.runsonwhat.com/reverse/amazon-pay): 2,131 companies - [Braintree](https://www.runsonwhat.com/reverse/braintree): 1,693 companies - [Recharge](https://www.runsonwhat.com/reverse/recharge): 1,623 companies ### [Search](https://www.runsonwhat.com/tools/site-search.md) Hosted search for websites, documentation and online stores. - [Algolia](https://www.runsonwhat.com/reverse/algolia): 7,243 companies - [Doofinder](https://www.runsonwhat.com/reverse/doofinder): 1,824 companies - [Searchanise](https://www.runsonwhat.com/reverse/searchanise): 1,267 companies - [Boost Commerce](https://www.runsonwhat.com/reverse/boost-commerce): 1,015 companies - [Coveo](https://www.runsonwhat.com/reverse/coveo): 627 companies - [Site Search 360](https://www.runsonwhat.com/reverse/site-search-360): 626 companies ### [Media & UI](https://www.runsonwhat.com/tools/media-ui.md) Animation libraries, web fonts, image and video hosting, and embedded media. - [Google Fonts](https://www.runsonwhat.com/reverse/google-fonts): 712,552 companies - [Font Awesome](https://www.runsonwhat.com/reverse/fontawesome): 347,142 companies - [Vimeo](https://www.runsonwhat.com/reverse/vimeo): 271,698 companies - [YouTube](https://www.runsonwhat.com/reverse/youtube): 268,794 companies - [GSAP](https://www.runsonwhat.com/reverse/gsap): 180,541 companies - [Google Maps](https://www.runsonwhat.com/reverse/google-maps): 121,678 companies ## Data & Observability: what they measure and store ### [Monitoring](https://www.runsonwhat.com/tools/monitoring.md) Error tracking, application monitoring, logging, on-call and status pages. - [Sentry](https://www.runsonwhat.com/reverse/sentry): 68,890 companies - [web-vitals](https://www.runsonwhat.com/reverse/web-vitals): 22,783 companies - [New Relic](https://www.runsonwhat.com/reverse/newrelic): 15,425 companies - [Datadog](https://www.runsonwhat.com/reverse/datadog): 10,662 companies - [Bugsnag](https://www.runsonwhat.com/reverse/bugsnag): 7,038 companies - [Atlassian Statuspage](https://www.runsonwhat.com/reverse/statuspage): 6,446 companies ### [Analytics](https://www.runsonwhat.com/tools/analytics.md) Web and product analytics, tag managers, customer data platforms and session recording. - [Google Analytics](https://www.runsonwhat.com/reverse/ga): 774,108 companies - [Google Tag Manager](https://www.runsonwhat.com/reverse/gtm): 454,399 companies - [Microsoft Clarity](https://www.runsonwhat.com/reverse/clarity): 118,261 companies - [Hotjar](https://www.runsonwhat.com/reverse/hotjar): 56,660 companies - [Matomo](https://www.runsonwhat.com/reverse/matomo): 30,773 companies - [Crazy Egg](https://www.runsonwhat.com/reverse/crazyegg): 8,912 companies ### [Flags & Experiments](https://www.runsonwhat.com/tools/feature-flags-ab-testing.md) Feature flags, product experimentation and website A/B testing and personalization. - [VWO](https://www.runsonwhat.com/reverse/vwo): 8,527 companies - [Optimizely](https://www.runsonwhat.com/reverse/optimizely): 6,802 companies - [LaunchDarkly](https://www.runsonwhat.com/reverse/launchdarkly): 4,781 companies - [Convert](https://www.runsonwhat.com/reverse/convert): 2,259 companies - [Zoho PageSense](https://www.runsonwhat.com/reverse/zoho-pagesense): 2,233 companies - [Adobe Target](https://www.runsonwhat.com/reverse/adobe-target): 1,733 companies ### [Data Pipeline](https://www.runsonwhat.com/tools/data-pipelines.md) Data warehouses, ingestion, transformation, reverse ETL and BI. - [Adobe Experience Platform Tags](https://www.runsonwhat.com/reverse/adobe-launch): 9,937 companies - [Tealium](https://www.runsonwhat.com/reverse/tealium): 2,962 companies - [Treasure Data](https://www.runsonwhat.com/reverse/treasure-data): 1,492 companies - [BlueConic](https://www.runsonwhat.com/reverse/blueconic): 676 companies - [mParticle](https://www.runsonwhat.com/reverse/mparticle): 458 companies - [Metabase](https://www.runsonwhat.com/reverse/metabase): 420 companies ## Go-to-market: how they find and keep customers ### [Website & CMS](https://www.runsonwhat.com/tools/cms-website-builders.md) Website builders, content management systems, headless CMSs and store platforms. - [WordPress](https://www.runsonwhat.com/reverse/wordpress): 516,036 companies - [Yoast SEO](https://www.runsonwhat.com/reverse/yoast): 272,309 companies - [Elementor](https://www.runsonwhat.com/reverse/elementor): 128,546 companies - [WooCommerce](https://www.runsonwhat.com/reverse/woocommerce): 69,346 companies - [Rank Math](https://www.runsonwhat.com/reverse/rankmath): 61,496 companies - [Shopify](https://www.runsonwhat.com/reverse/shopify): 57,768 companies ### [Marketing](https://www.runsonwhat.com/tools/marketing-automation.md) Marketing automation, email marketing, forms, referral and affiliate programs, and SEO tools. - [Mailchimp](https://www.runsonwhat.com/reverse/mailchimp): 110,176 companies - [Brevo](https://www.runsonwhat.com/reverse/brevo): 76,950 companies - [Klaviyo](https://www.runsonwhat.com/reverse/klaviyo): 33,758 companies - [Ahrefs](https://www.runsonwhat.com/reverse/ahrefs): 22,060 companies - [Pardot](https://www.runsonwhat.com/reverse/pardot): 19,331 companies - [MailerLite](https://www.runsonwhat.com/reverse/mailerlite): 15,146 companies ### [Ads & Pixels](https://www.runsonwhat.com/tools/ad-platforms.md) Advertising pixels, conversion tags and ad tech, from Google and Meta to retargeting networks. - [Google Ads](https://www.runsonwhat.com/reverse/google-ads): 416,818 companies - [Meta Pixel](https://www.runsonwhat.com/reverse/meta-pixel): 356,879 companies - [Microsoft Ads](https://www.runsonwhat.com/reverse/bing-ads): 111,200 companies - [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight): 102,301 companies - [TikTok Pixel](https://www.runsonwhat.com/reverse/tiktok-pixel): 42,740 companies - [Google Ad Manager](https://www.runsonwhat.com/reverse/google-ad-manager): 35,343 companies ### [Sales & CRM](https://www.runsonwhat.com/tools/crm-sales.md) CRMs, sales engagement, meeting scheduling, revenue intelligence and customer success platforms. - [HubSpot](https://www.runsonwhat.com/reverse/hubspot): 87,918 companies - [Zoho](https://www.runsonwhat.com/reverse/zoho): 60,527 companies - [Salesforce](https://www.runsonwhat.com/reverse/salesforce): 32,791 companies - [Calendly](https://www.runsonwhat.com/reverse/calendly): 20,034 companies - [ZoomInfo](https://www.runsonwhat.com/reverse/zoominfo): 13,947 companies - [CallRail](https://www.runsonwhat.com/reverse/callrail): 11,109 companies ### [Support & Docs](https://www.runsonwhat.com/tools/customer-support.md) Help desks, live chat, AI support agents, documentation platforms and community tools. - [WhatsApp Business](https://www.runsonwhat.com/reverse/whatsapp): 120,868 companies - [Zendesk](https://www.runsonwhat.com/reverse/zendesk): 39,685 companies - [tawk.to](https://www.runsonwhat.com/reverse/tawk): 14,323 companies - [Freshdesk](https://www.runsonwhat.com/reverse/freshdesk): 11,796 companies - [Intercom](https://www.runsonwhat.com/reverse/intercom): 7,715 companies - [LiveChat](https://www.runsonwhat.com/reverse/livechat): 5,906 companies ## Company Ops: what the team runs on day to day ### [Email Delivery](https://www.runsonwhat.com/tools/email-delivery.md) Transactional email APIs and SMTP relays that send a product's emails. - [SendGrid](https://www.runsonwhat.com/reverse/sendgrid): 188,556 companies - [Amazon SES](https://www.runsonwhat.com/reverse/ses): 58,197 companies - [Mailchimp Transactional](https://www.runsonwhat.com/reverse/mandrill): 55,987 companies - [Mailgun](https://www.runsonwhat.com/reverse/mailgun): 47,335 companies - [Resend](https://www.runsonwhat.com/reverse/resend): 25,163 companies - [Mailjet](https://www.runsonwhat.com/reverse/mailjet): 24,069 companies ### [Workspace](https://www.runsonwhat.com/tools/email-workspace.md) Business email and office suites: Google Workspace, Microsoft 365 and alternatives. - [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365): 693,110 companies - [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace): 392,577 companies - [Apple Business](https://www.runsonwhat.com/reverse/apple): 109,171 companies - [Exclaimer](https://www.runsonwhat.com/reverse/exclaimer): 33,653 companies - [Tencent Exmail](https://www.runsonwhat.com/reverse/tencent-exmail): 6,364 companies - [Rackspace Email](https://www.runsonwhat.com/reverse/rackspace-email): 6,070 companies ### [Collaboration](https://www.runsonwhat.com/tools/collaboration.md) Chat, docs, video meetings, whiteboards, design and project management tools. - [Adobe](https://www.runsonwhat.com/reverse/adobe): 22,124 companies - [Zoom](https://www.runsonwhat.com/reverse/zoom): 19,270 companies - [Webex](https://www.runsonwhat.com/reverse/webex): 15,680 companies - [Miro](https://www.runsonwhat.com/reverse/miro): 10,416 companies - [Slack](https://www.runsonwhat.com/reverse/slack): 8,556 companies - [Canva](https://www.runsonwhat.com/reverse/canva): 8,150 companies ### [Dev Tools](https://www.runsonwhat.com/tools/developer-tools.md) Code editors, AI coding agents, internal tool builders, CI, containers and build tools. - [Atlassian](https://www.runsonwhat.com/reverse/atlassian): 64,109 companies - [Cursor](https://www.runsonwhat.com/reverse/cursor): 6,035 companies - [TeamViewer](https://www.runsonwhat.com/reverse/teamviewer): 4,314 companies - [Docker](https://www.runsonwhat.com/reverse/docker): 2,958 companies - [Postman](https://www.runsonwhat.com/reverse/postman): 2,833 companies - [HubSpot App Developer](https://www.runsonwhat.com/reverse/hubspot-developer): 2,492 companies ### [People & HR](https://www.runsonwhat.com/tools/hr-recruiting.md) Applicant tracking systems, HR platforms, payroll, global employment and learning tools. - [Rippling](https://www.runsonwhat.com/reverse/rippling): 3,099 companies - [SAP SuccessFactors](https://www.runsonwhat.com/reverse/sap-successfactors): 2,984 companies - [Teamtailor](https://www.runsonwhat.com/reverse/teamtailor): 2,484 companies - [Greenhouse](https://www.runsonwhat.com/reverse/greenhouse): 1,629 companies - [Docebo](https://www.runsonwhat.com/reverse/docebo): 1,170 companies - [UKG Pro](https://www.runsonwhat.com/reverse/ukg): 969 companies ### [Finance & Legal](https://www.runsonwhat.com/tools/finance-legal.md) E-signature, contract management, spend management, banking, ERP and investor relations. - [DocuSign](https://www.runsonwhat.com/reverse/docusign): 20,671 companies - [Odoo](https://www.runsonwhat.com/reverse/odoo): 3,964 companies - [Sage Intacct](https://www.runsonwhat.com/reverse/sage-intacct): 3,494 companies - [Amazon Business](https://www.runsonwhat.com/reverse/amazon-business): 2,663 companies - [AFAS Software](https://www.runsonwhat.com/reverse/afas): 2,562 companies - [NetSuite](https://www.runsonwhat.com/reverse/netsuite): 2,372 companies ### [Security & Compliance](https://www.runsonwhat.com/tools/security-compliance.md) Certificate authorities, password managers, network security, email security and compliance tools. - [reCAPTCHA](https://www.runsonwhat.com/reverse/recaptcha): 238,975 companies - [Cookiebot](https://www.runsonwhat.com/reverse/cookiebot): 58,424 companies - [Let's Encrypt](https://www.runsonwhat.com/reverse/letsencrypt): 54,360 companies - [GlobalSign](https://www.runsonwhat.com/reverse/globalsign): 53,343 companies - [Proofpoint](https://www.runsonwhat.com/reverse/proofpoint): 48,229 companies - [CookieYes](https://www.runsonwhat.com/reverse/cookieyes): 48,220 companies --- Source: runsonwhat, https://www.runsonwhat.com/tools (updated October 2026). Counts are companies with direct public evidence of the tool (DNS records, certificates, website code, a real-browser crawl, subprocessor lists), so they are lower bounds. Methodology: https://www.runsonwhat.com/methodology.