Here are 45 popular tools used in the field of digital marketing:

1. Google Analytics – Web analytics tool
2. Google Ads – Advertising platform
3. Facebook Ads Manager – Advertising platform for Facebook and Instagram
4. HubSpot – All-in-one marketing platform
5. Mailchimp – Email marketing tool
6. SEMrush – SEO and competitive analysis tool
7. Moz – SEO software and tools
8. Hootsuite – Social media management platform
9. Buffer – Social media scheduling tool
10. Sprout Social – Social media management and analytics platform
11. Canva – Graphic design tool
12. Adobe Creative Cloud – Suite of creative tools for design and multimedia
13. Buzzsumo – Content research and analysis tool
14. Hotjar – Heatmap and user behavior tracking tool
15. Ahrefs – SEO and backlink analysis tool
16. Yoast SEO – WordPress plugin for SEO optimization
17. Google Search Console – Webmaster tool for monitoring website performance
18. Crazy Egg – Heatmap and website optimization tool
19. Trello – Project management and collaboration tool
20. Asana – Project management and task tracking tool
21. Slack – Team communication and collaboration platform
22. Google Trends – Tool for analyzing search trends
23. Google Keyword Planner – Keyword research tool
24. CoSchedule – Content marketing and social media scheduling tool
25. ClickFunnels – Sales funnel and landing page builder
26. Unbounce – Landing page builder
27. Optimizely – A/B testing and conversion optimization tool
28. Google Optimize – Website testing and personalization tool
29. Sprinklr – Social media management and customer experience platform
30. Mention – Brand monitoring and social listening tool
31. Sumo – Website traffic and conversion optimization tool
32. Sendinblue – Email marketing and automation platform
33. Salesforce Marketing Cloud – Integrated marketing automation and CRM platform
34. Klaviyo – Email marketing and automation platform for e-commerce
35. Shopify – E-commerce platform
36. WordPress – Content management system (CMS)
37. Google Tag Manager – Tag management system
38. Kissmetrics – Customer analytics and engagement platform
39. Qualaroo – User feedback and survey tool
40. Finteza – Web analytics and conversion optimization tool
41. Wistia – Video hosting and analytics platform
42. SproutVideo – Video hosting and analytics platform
43. SurveyMonkey – Online survey tool
44. Google My Business – Tool for managing business listings on Google
45. Zendesk – Customer support and ticketing system

 The choice of tools may vary depending on specific needs and preferences.