Vultr has offered a Free Tier Program. However, you have to register and get approved. Once approved, you can select a Free Tier instance at (Cloud Compute - Regular - Free Instance).
The Server instance you can get at "Free Tier" is 512MB RAM, 1 CPU which is at 2600MHz, and 10GB SSD.
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Free Vultr Instance Server Specification[/caption]
Currently, the Free Tier only lasts for one year. That may be extended or shrank in the future.
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Vultr Free Tier Program Approved![/caption]
Not all regions have Free-Tier. And as the server specification is really minimum, you can't install Ubuntu on it. Here are the available OS: FreeBSD, OpenBSD, Rocky Linux, CentOS, Debian etc.
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What you can get by Deploying a Free Instance?[/caption]
Anyone is eligible for Vultr Free Tier. If you don't have Vultr account, register here and you can get $100 Free Credit.
Well, what can you do with this Free Instance?
Blog Post: Vultr Offers Free Tier VPS!
VPS Database: Search VPS
Applications that can run on 512M VPS?
Well, what can you do with this Free Instance? What software/applications can be running on it smoothly so that you don’t waste this Free Stuff?
You can run a health check tool similar to CloudFlare Heath Check: NodeJs Health Check Tool