PRICING
Free, forever. No hidden tiers, no paywall.
The free tier is the whole calculator — no feature gating, no usage caps, no hidden costs. Everything the tool does is available immediately, with no account and no sign-up.
Free
$0 / forever
Everything the calculator does, available immediately. No account, no sign-up, no data leaves your browser.
- ✓ VLSM allocation from any parent CIDR
- ✓ Overlap verification on every allocation
- ✓ Remaining gap reporting
- ✓ Input by prefix length or host count
- ✓ Copy-as-text table export
- ✓ CSV download
- ✓ Overflow detection
- — Saved plans across sessions
- — Team workspaces
- — REST API access