Live categories

Browse live tool groups

39 live tools across 12 active categories.

Cloud Tools

Cloud Tools

3 live tools · 4 planned

Cloud Calculator Featured

Azure VM Price Compare

Compare Azure VM pay-as-you-go and reserved pricing scenarios using practical runtime and instance-count assumptions.

Cloud Finder Featured

Azure VM Size Finder

Find Azure VM sizes based on practical workload requirements.

Cloud Comparison Featured

Reserved vs On-Demand

Compare monthly, annual, and full-term cost for reserved versus on-demand pricing under practical workload usage assumptions.

Containers / Kubernetes

Containers / Kubernetes

3 live tools

Containers Calculator Featured

K8s Sizing Calculator

Estimate Kubernetes worker node count from workload requests, node capacity, reserve overhead, and target utilization.

Containers Estimator

K8s Request vs Limit Estimator

Estimate Kubernetes requests, limits, overcommit pressure, and request-to-limit behavior across workloads.

Containers Estimator

Pod Density Estimator

Estimate Kubernetes pod density from workload requests, allocatable node capacity, utilization targets, and pod-slot limits.

Linux / UNIX

Linux / UNIX

6 live tools

Linux Calculator Featured

chmod Permission Calculator

Convert chmod values between numeric and symbolic notation, explore permissions with an interactive grid, compare two values side-by-side, and get risk indicators and an octal breakdown.

Linux Calculator

umask Calculator

Calculate Linux umask results for files and directories, reverse target permissions back to the required umask, and inspect live previews, permission cuts, and shareable outputs.

Linux Builder

Crontab Builder

Build cron schedules with a readable preview, expression output, and practical Linux scheduling guidance.

Linux Explainer

File Permission Explainer

Explain Linux file permission patterns, practical access outcomes, and security posture for files and directories.

Linux Helper

Systemd Unit Helper

Generate practical systemd unit file patterns and service definitions for common Linux service scenarios.

Linux Builder

Tar Command Builder

Build practical tar commands for common archive creation, extraction, and inspection workflows.

Virtualization

Virtualization

2 live tools · 1 planned

Virtualization Calculator

Hyper-V Capacity Planning Calculator

Host sizing, VM planning, and infrastructure estimation for Hyper-V environments.

Virtualization Planner

N+1 Cluster Planner

Vendor-agnostic resilience planner. Compare N+0, N+1, N+2, and 2N usable capacity for cores, RAM, storage, and IOPS with configurable operational headroom.

Cost / Licensing

Cost / Licensing

3 live tools

Licensing Estimator Featured

Windows Server Licensing Estimator

Estimate Windows Server Standard and Datacenter licensing under physical-core and per-VM scenarios with explicit pack-cost assumptions.

Licensing Estimator

SQL Server Licensing Estimator

Estimate SQL Server licensing requirements and cost across Per Physical Core, Per Virtual Core, and Server + CAL methods for on-prem deployments.

Licensing Estimator Featured

Azure Hybrid Benefit Estimator

Estimate Azure Hybrid Benefit savings for Windows Server and SQL Server VMs in Azure with multi-VM input, with-vs-without comparison, and 3-year TCO.

Network Tools

Network Tools

4 live tools

Network Calculator

CIDR Calculator

Calculate CIDR ranges, subnet masks, wildcard masks, usable hosts, and subnet boundaries for IPv4 networks.

Network Splitter

Subnet Splitter

Split larger IPv4 CIDR ranges into smaller subnet blocks with copy-ready output for practical network planning workflows.

Network Calculator

IP Range Calculator

Calculate IPv4 range size, exact subnet alignment, smallest covering CIDR, and minimal CIDR block decomposition.

Network Helper

MTU / MSS Helper

Calculate effective MTU, TCP MSS, and clamp-ready values across IPv4 and IPv6 scenarios with practical tunnel overhead presets.

Storage / RAID

Storage / RAID

3 live tools

Storage Estimator

RAID Capacity Estimator

Estimate usable RAID capacity, parity or mirror overhead, and resilience trade-offs across common RAID levels.

Storage Calculator

Usable Storage Calculator

Estimate usable storage after practical overhead assumptions, reserve allocation, and snapshot capacity planning.

Storage Helper

IOPS Sizing Helper

Estimate read/write IOPS mix and throughput targets from practical storage workload assumptions.

Text / Dev Tools

Text / Dev Tools

5 live tools

Text & Dev Utility

Base64 Encode / Decode

Encode and decode Base64 values quickly with UTF-8 handling, URL-safe support, and copy-ready output.

Text & Dev Formatter

JSON Formatter

Format, minify, and validate JSON content with copy-ready output for practical development workflows.

Text & Dev Validator

YAML Validator

Validate YAML structure and generate normalized YAML output for practical infrastructure and configuration workflows.

Text & Dev Tester

Regex Tester

Test regular expressions against sample text, inspect matches, and verify common .NET regex options.

Text & Dev Generator

Hash Generator

Generate MD5, SHA1, SHA256, SHA384, and SHA512 hashes from UTF-8 text with copy-ready output.

Security / Password Tools

Security / Password Tools

3 live tools

Security Generator

Password Generator

Generate strong random passwords in your browser using a cryptographically secure source. Nothing is sent to the server.

Security Generator

Passphrase Generator

Generate strong random passphrases in your browser using the EFF Large Wordlist. Nothing is sent to the server.

Security Generator

Random Secret Generator

Generate cryptographically random secrets for API keys, JWT signing keys, password salts, and session tokens.

Unit Converters

Unit Converters

3 live tools

Unit Converters Converter

MB / MiB / GB / GiB Converter

Convert storage units across decimal and binary measurement systems.

Unit Converters Converter

Mbps / MBps Converter

Convert between bits-per-second and bytes-per-second throughput values.

Unit Converters Converter

Time Unit Converter

Convert practical time values across seconds, minutes, hours, and days.

Web Tools

Web Tools

1 live tool · 2 planned

Web Reference

HTTP Status Reference

Quick reference for HTTP status codes with descriptions, when to use them, and real-world examples.

Email Tools

Email Tools

3 live tools

Email Builder

SPF Record Helper

Build a new SPF TXT record from common email providers, or parse an existing one to see mechanisms, DNS lookups, and common errors.

Email Builder

DMARC Policy Builder

Build a DMARC policy, parse an existing record, or read an aggregate report. Includes 3-stage rollout presets, tag reference, migration timeline, and common mistakes.

Email Builder Featured

DKIM Selector Helper

Parse an existing DKIM record, build one manually, or generate a new RSA key pair locally in your browser.

Roadmap

Planned tool groups

Planned tools stay separated so the catalog does not blur what is live now versus what is still on the roadmap.

Cloud Tools

Cloud Tools

4 planned tools

Virtualization

Virtualization

1 planned tool

Virtualization Estimator

VMware VM Sizing Estimator

Estimate VMware VM sizing based on practical workload assumptions.

Web Tools

Web Tools

2 planned tools