How to get online stock prices?

 Stock prises are available on google. like you just need to search which stock you are looking for -

for an example - type on google search bar " Share price of Reliance ind." 

and you will get all details whatever you want. 

There is some apps or web sites that provide facility to get all information about company.

1. future plans of company, investments.

2. long term of company's chart of share prices. 

3. Balance sheets. 

4. Assets of the particular company.

5. liabilities of company, profits of the company. 

and many more. 

I will list out the names on apps and web sites.

1. Money control.com 
2. Tickertape.com
3. Financial express. 
4. Zerodha/ kite. (App and website).
5. Groww. (App and website).

I can trustfully suggest you them because i personally used before suggesting these are secure, safe and trusted websites.