As of my last update in September 2021, there are numerous reputable online shopping platforms available worldwide. Below is a list of some popular and widely used online shopping websites. Keep in mind that this list is not exhaustive, and new platforms may have emerged since my last update. It's always a good idea to research and read reviews before making purchases from any online store.

1. Amazon: www.amazon.com
2. eBay: www.ebay.com
3. Walmart: www.walmart.com
4. Alibaba: www.alibaba.com
5. Etsy: www.etsy.com
6. Target: www.target.com
7. Best Buy: www.bestbuy.com
8. Newegg: www.newegg.com
9. Flipkart: www.flipkart.com (India)
10. Snapdeal: www.snapdeal.com (India)
11. AliExpress: www.aliexpress.com
12. Rakuten: www.rakuten.com
13. JD.com: www.jd.com (China)
14. Taobao: www.taobao.com (China)
15. Lazada: www.lazada.com (Southeast Asia)
16. Zalora: www.zalora.com (Southeast Asia)
17. Asos: www.asos.com
18. Overstock: www.overstock.com
19. Macy's: www.macys.com
20. Nordstrom: www.nordstrom.com
21. Zappos: www.zappos.com
22. Costco: www.costco.com
23. Wayfair: www.wayfair.com
24. Sephora: www.sephora.com
25. H&M: www.hm.com
26. Ikea: www.ikea.com
27. Home Depot: www.homedepot.com
28. Lowe's: www.lowes.com
29. Barnes & Noble: www.barnesandnoble.com
30. Ulta Beauty: www.ulta.com
31. ASOS: www.asos.com
32. Superdrug: www.superdrug.com (UK)
33. Tesco: www.tesco.com (UK)
34. JD Williams: www.jdwilliams.com (UK)
35. John Lewis: www.johnlewis.com (UK)
36. Catch: www.catch.com.au (Australia)
37. Kmart: www.kmart.com.au (Australia)
38. Woolworths: www.woolworths.com.au (Australia)
39. Myer: www.myer.com.au (Australia)
40. Decathlon: www.decathlon.com (Sports Equipment)
41. Nike: www.nike.com
42. Adidas: www.adidas.com
43. Apple Store: www.apple.com
44. Samsung: www.samsung.com
45. Microsoft Store: www.microsoft.com/en-us/store
46. Google Store: store.google.com
47. Sony: www.sony.com
48. B&H Photo Video: www.bhphotovideo.com
49. REI: www.rei.com
50. Uniqlo: www.uniqlo.com

Please note that some websites may be country-specific or may have different domain extensions depending on the region. Always ensure that you are using the official website of the online store to avoid potential scams or security risks. Additionally, check for shipping and return policies, customer reviews, and payment options before making a purchase.