Pricing

$0

Free forever. No credit card. No catch.

Every feature is available to every user from day one.

Subdomains

2 subdomains on signup
5 subdomains after 4 weeks
3 domains to choose from
Switch domain any time
Instant activation

DNS Management

A, AAAA, CNAME records
MX, TXT, NS records
SRV, CAA, ALIAS records
HTTPS, SVCB, TLSA, PTR
Sub-records (api.you.domain)

Platform

Full data isolation
CSRF protection
No ads, no tracking
Free forever

Available domains

.nexsub.online .mydemodomain.buzz .demoinstance.online

Get started free

Starter vs. Veteran

Starter from day one

Up to 2 subdomains
All DNS record types
3 domains to choose from
Instant activation

Veteran after 4 weeks

Everything in Starter
Up to 5 subdomains
Auto-unlocked — no action needed
No payment ever required

Need a higher limit?

The veteran limit of 5 subdomains covers most use cases. If you have a specific project that genuinely requires more, send an email to hello@opensourcehub.dev with a clear explanation of your use case. We review every request manually — a valid reason is required.

Frequently asked questions

Will this always be free?

Yes. NexSub is a free community service by OpenSource Hub. We have no plans to ever charge for it.

How many domains can I use?

You can claim subdomains on any of our 3 configured domains — nexsub.online, mydemodomain.buzz, demoinstance.online. Switch your active domain from the dashboard.

What DNS record types are supported?

A, AAAA, CNAME, MX, TXT, NS, SRV, CAA, ALIAS, HTTPS, SVCB, TLSA, PTR — all major types are supported.

How do I unlock more subdomains?

Wait 4 weeks after registration. Your account auto-upgrades to 5 subdomains — no action required.

Can I create sub-records?

Yes. When managing DNS for your subdomain you can add records for any host beneath it, e.g. api.yourname.nexsub.online.

Can I request a higher limit?

Yes. Email hello@opensourcehub.dev with a clear explanation of why you need more than 5 subdomains. We review all requests manually.