Yes it is possible to access tally data from web: 1)Create an application which syncs you tally data(Company,Masters,Vouchers,etc) with your remote database, so you can view the data from anywhere Example:Biz Analyst(https://bizanalyst.in/) it use HTTP protocol to communicate with tally on local machine and sync with their servers constantly so clients can access their data from their mobile device or 2) Using Tally.Net you can access your data from anywhere for this you need to have valid TSS and Company should connected to Tally.Net Server Here the link from Tally Solutions which guide through the process https://help.tallysolutions.com/article/DeveloperReference/auth_lib/introduction.htm or 3)Tally has Built In functionality, with Tdl you send your data to any web page or server using Remote Request,Remote Collection,HTTP,FTP Uploads . But you need to constantly sync your data when any new entries are created or altered,it is fine for Simple reports and Invoice but i don't suggest this for complex data Hope this will help you.
