Cloud and infrastructure tools for real work.
Azure VM sizing, price comparison, Kubernetes planning, Linux helpers, licensing estimators, and compact operational utilities for actual technical workflows.
Why use cld2day tools?
Built for engineers who need answers fast, not platforms that need sign-ups to show you a CIDR table.
No account needed
Every tool is open and usable immediately. No sign-up, no email, no paywall.
Zero ads
No banners, no sponsored results, no distractions. Just the tool and the answer.
Fast results
Search, filter, and get to the right tool in seconds — not after scrolling past marketing copy.
Built for engineers
Inputs and outputs are in the units you actually use: vCPUs, GiB, CIDR blocks, octal permissions.
Focused scope
Each tool does one thing well. No bloated multi-purpose pages that half-answer ten questions.
Open catalog
See every live and planned tool at once — statuses, categories, and links all in one place.
Start with the strongest current tools
Best current entry points into the platform.
Hyper-V Capacity Planning Calculator
Host sizing, VM planning, and infrastructure estimation for Hyper-V environments.
chmod Permission Calculator
Convert chmod values between numeric and symbolic notation with a practical Linux permission breakdown.
umask Permission Calculator
Calculate resulting file and directory permissions from a Linux umask value.
Azure VM Price Compare
Compare Azure VM pay-as-you-go and reserved pricing scenarios using practical runtime and instance-count assumptions.
Azure VM Size Finder
Find Azure VM sizes based on practical workload requirements.
Reserved vs On-Demand
Compare monthly, annual, and full-term cost for reserved versus on-demand pricing under practical workload usage assumptions.
What's your role?
Choose your engineering role to jump directly to the tools that are most relevant for your day-to-day work.
View all toolsWhat kind of work are you doing?
Fast lanes into the current platform structure.
Find the right tool now.
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