Free tools
Free cloud and network tools
Four calculators for planning servers and networks. Each one runs entirely in your browser: no sign-up, and nothing you enter leaves your device (the ping tester only contacts the public test endpoints).
Cloud ping tester
Time requests from your own connection to Singapore, Malaysia, Jakarta, Hong Kong, Tokyo and US West.
Open ping tester →VPS sizing calculator
Get a starting vCPU, RAM and disk size for WordPress, game servers or Docker, matched to real plans in ₱ and $.
Size a VPS →CIDR subnet calculator
Work out the mask, wildcard, network, broadcast and usable host range for any IPv4 block.
Open subnet calculator →Uptime SLA calculator
Turn 99.9% or 99.99% into allowed downtime per day, month and year, and see the revenue at stake.
Check SLA downtime →What each tool is for
- Ping tester: see which Asia-Pacific region answers fastest from your connection before you pick a server location.
- VPS sizing calculator: get a sensible starting size for WordPress, a game server or Docker, matched to real plans with peso and dollar prices.
- CIDR subnet calculator: plan VPC and VLAN ranges, check masks and count usable hosts.
- Uptime SLA calculator: turn a percentage into minutes of allowed downtime and a peso figure.
How CloudBox checks providers
We don’t run a test lab and we don’t publish latency numbers of our own. Prices, plan specs, data center locations and payment methods come from each provider’s public pages, with the date we last checked them. Latency comes from you: the ping tester times requests from your own browser, on your own connection, right now. Read the full method.
Disclosure: CloudBox is reader-supported. Some /go/ links may earn us a commission at no extra cost to you. That never changes the facts we list. Affiliate disclosure.