There are several ways for students to make money online without any initial investment. Here are some ideas to get you started:

1. Freelancing: Offer your skills and services as a freelancer. You can provide services like writing, graphic design, web development, social media management, or virtual assistance. Websites like Upwork, Fiverr, and Freelancer.com connect freelancers with clients looking for their specific skills.
2. Online tutoring: If you excel in a particular subject, consider becoming an online tutor. You can teach subjects like math, science, languages, or music. Websites such as Tutor.com, Chegg, and Wyzant provide platforms for connecting tutors with students.
3. Content creation: If you enjoy creating content, you can start a blog or a YouTube channel. Build an audience and monetize your content through advertising, sponsorships, or affiliate marketing. It may take time to grow your audience, but consistency and quality content can lead to income in the long run.
4. Online surveys and microtasks: Participate in online surveys or complete microtasks on websites like Swagbucks, Amazon Mechanical Turk, or InboxDollars. While the payout may not be substantial, it can be a way to earn some extra money in your spare time.
5. Dropshipping: Set up an online store without needing to hold inventory. With dropshipping, you sell products from suppliers who handle packaging and shipping directly to the customers. Platforms like Shopify can help you set up your store and find suitable suppliers.
6. Online marketplaces: Sell your own products or handmade crafts on platforms like Etsy, eBay, or Amazon. If you have artistic skills, you can create digital artwork or designs to sell as well.
7. Social media management: If you have a knack for social media, offer your services to small businesses or individuals looking to grow their online presence. You can manage their social media accounts, create content, and engage with their audience.

Remember, building an online income takes time and effort. Choose a method that aligns with your skills and interests, and be prepared to invest time and effort to achieve success.