How to earn money online for students without investment:

1. Freelance Writing and Blogging: 

If you have a knack for writing, platforms like Medium, HubPages, or even starting your own blog can help you earn money through ad revenue and sponsored content.

2. Online Tutoring: 

Share your knowledge by tutoring subjects you excel in. Websites like Chegg Tutors, Tutor.com, or even offering services through social media can connect you with students needing help.

3. Content Creation on YouTube or TikTok: 

Create unique and engaging content that attracts viewers. Ad revenue, sponsorships, and affiliate marketing can generate income once you build a following.

4. Participating in Online Surveys and Market Research: 

Websites like Swagbucks, Survey Junkie, or Vindale Research pay users to participate in surveys and research studies.

5. Selling Handmade Crafts or Art: 

Platforms like Etsy allow you to sell handmade items or digital art. If you’re creative, this could be a fun way to earn money.

6. Virtual Assistant Services: 

Offer services such as email management, scheduling, social media management, or customer service. Websites like Fiverr and Upwork are good places to start.

7. Language Translation: 

If you are bilingual or multilingual, offer translation services on platforms like Gengo or TranslatorsCafe.

8. Online Courses and E-books: 

Create and sell online courses or e-books on topics you are knowledgeable about. Websites like Udemy or Gumroad can be platforms to showcase your work.

9. Stock Photography: 

If you enjoy photography, you can sell your photos on stock photo websites like Shutterstock, Adobe Stock, or Getty Images.

10. Participating in Focus Groups: 

Some companies pay for consumer opinions in focus groups. Websites like Respondent.io offer paid opportunities for your insights.

11. App Testing: 

Companies often need real users to test their apps. Platforms like UserTesting or TryMyUI pay for your feedback on usability and design.

12. Affiliate Marketing: 

Promote products or services on your blog, YouTube channel, or social media. Earn a commission for every sale made through your referral links. Amazon Associates and ClickBank are popular affiliate programs.

Would you like more detailed information on any of these methods?