There are many ways to earn money online without any investment. I am sharing some of them bellow---
1) Listen to music or song and get paid - There are some music review websites where music artists or singers upload their song or music and pay these sites to get a review of it. When you join as a reviewer and give a review after listening them, you will get rewarded a small portion of that money. There are also some sites where you don't need to give a review and simply just listen to get rewarded. If you google about "earn money online listening to music" or some similar keywords you will find many sites or blogs who talk about these type of sites.
2) Get paid to view ads - There are some sites which are called paid to click or ptc sites where advertisers publish their ads by giving the cost of advertising to these websites. When you join these sites you will have the option to view these ads by clicking the ads. Each ad you view will give you a certain reward. Not only that you can complete surveys or offers on these sites to multiply your earnings. You can google it as "new ptc sites" or "list of ptc sites" or some similar keywords.
3) Earn Money from Google By Blogging - If you love blogging or have websites with lots of search engine friendly contents and always update your website or blog then you are a lucky person because Google has specific platform called Google Adsense to give website or blog owners some extra earnings. All you need to do is simply copy/paste the codes given by Google Adsense ads onto your blog or site and whenever someone clicks on it you get rewarded. Sometimes you may earn just for the ad impression.
Remember wherever you go always be sure that the website is genuine and don't needs fees to get started. As we all know 90% of the sites which require fees to earn money gets scammed.
Best Of Luck & Happy Earnings
