for how log i can use this demo version

[Amit Rana]

Hello

i register for JIRA software.for how long i can use this as free trial

[Alexander Bondarev]

Hi, @Amit Rana !

Cloud trial - free for 7 days.

Server trial - free for 30 days.

[Mohamed Riza _ServiceRocket_]

Hi @Amit Rana , 

This depends on your requirements. Atlassian Cloud is free to a certain extent: 

The Atlassian Cloud Free plan is available for up to 10 users (Jira Software, Jira Core, Confluence) and 3 agents (Jira Service Desk), 2GB of storage, Community Support, and no audit logs. Jira Software, Jira Core, and Confluence also have permission restrictions and will not include anonymous access in the Free plan.

so as long as you do not pass these, you may stay for free in Cloud. For your reference: https://www.atlassian.com/licensing/cloud#cloud-free