Cloud Cheat Sheets & Quick References
Bookmark-worthy quick references for cloud engineers. Each section collects the most useful tools, comparison tables, and deep-dive guides on CloudToolStack into a single launch pad — organized by topic so you can find what you need fast. Everything is free, runs in your browser, and requires no sign-up.
IAM & Security Quick References
Identity, access management, and security policy references across AWS, Azure, GCP, and multi-cloud.
Multi-Cloud IAM Rosetta Stone
Map equivalent IAM concepts and roles across AWS, Azure, and GCP.
OpenGuideAWS IAM Best Practices
Essential IAM security practices including least privilege, MFA, and role-based access patterns.
OpenGuideMulti-Cloud Identity Federation Guide
Guide for setting up identity federation between AWS, Azure AD, and GCP.
OpenComparisonMulti-Cloud Encryption Compare
Compare encryption-at-rest and in-transit options across AWS, Azure, and GCP.
OpenToolIAM Policy Explainer
Get human-readable explanations of IAM policy statements.
OpenComparisonIAM Across Clouds
Comprehensive comparison of IAM across AWS, Azure, GCP, and OCI covering policy models, roles, identity federation, MFA, service identities, and multi-cloud IAM best practices.
OpenNetworking Cheat Sheets
VPC, VNet, and VCN architecture patterns, CIDR calculators, DNS references, and load balancer guides.
Multi-Cloud Networking Glossary
Interactive glossary mapping networking terms and services across providers.
OpenToolVPC CIDR Calculator
Calculate network, broadcast, host range, and mask from CIDR notation.
OpenGuideVPC Architecture Patterns
Common VPC designs including multi-tier, hub-and-spoke, and transit gateway architectures.
OpenComparisonNetworking Across Clouds
Side-by-side comparison of networking across AWS, Azure, GCP, and OCI covering VPC architecture, firewalls, load balancing, DNS, VPN, interconnect, peering, and multi-cloud connectivity patterns.
OpenToolCIDR Overlap Checker
Check multiple CIDR ranges for overlapping IP address spaces.
OpenGuideDNS Architecture Across Clouds
Design DNS for multi-cloud: public/private zones, hybrid resolution, split-horizon, and centralized DNS strategies.
OpenCompute Instance Comparisons
Instance type finders, VM sizing guides, and cross-provider compute comparisons.
EC2 Instance Match Helper
Find the right EC2 instance type based on your vCPU, memory, and workload requirements.
OpenToolAzure VM Size Finder
Find the right Azure VM size based on vCPU, memory, and workload requirements.
OpenToolGCP Compute Instance Finder
Find the right GCP Compute Engine machine type by vCPU, memory, and workload.
OpenComparisonMulti-Cloud VM Compare
Compare VM instance families and naming conventions across providers.
OpenGuideEC2 Instance Types Explained
Understand EC2 instance families, Graviton, and how to choose the right instance for your workload.
OpenGuideAzure VM Series Guide
Understand Azure VM series (B, D, E, F, N) and choose the right size for your workload.
OpenStorage & Database References
Storage tier breakdowns, cost estimators, and database comparison guides across all providers.
Multi-Cloud Storage Cheat Sheet
Interactive reference comparing storage services across AWS, Azure, and GCP.
OpenGuideS3 Storage Classes Explained
Understand S3 storage classes, when to use each, and how to optimize costs with lifecycle rules.
OpenComparisonMulti-Cloud Object Storage Cost Compare
Compare object storage costs (S3, Blob, Cloud Storage) with interactive calculator.
OpenComparisonManaged Database Services Comparison
Compare managed databases across AWS, Azure, and GCP, covering relational, NoSQL, document, in-memory, and serverless database options.
OpenComparisonStorage Across Clouds
Comprehensive comparison of object, block, and file storage across AWS, Azure, GCP, and OCI with pricing tables, CLI examples, lifecycle policies, and cross-cloud transfer strategies.
OpenToolAzure Cosmos DB RU Calculator
Calculate Cosmos DB Request Units (RU/s) based on operation types and document sizes.
OpenServerless Quick Starts
Lambda, Azure Functions, Cloud Functions, and Cloud Run guides alongside cost estimation tools.
Lambda Performance Tuning
Advanced techniques for optimizing Lambda cold starts, memory, and execution time.
OpenGuideCloud Functions vs Cloud Run
Choose between Cloud Functions and Cloud Run for serverless workloads on GCP.
OpenGuideFunctions Hosting Plans
Compare Azure Functions Consumption, Premium, and Dedicated plans for different workloads.
OpenToolLambda Cost Estimator
Estimate monthly AWS Lambda costs including compute, requests, and free tier.
OpenComparisonMulti-Cloud Functions Compare
Compare serverless function platforms (Lambda, Azure Functions, Cloud Functions).
OpenGuideServerless Containers
Comparison of serverless container platforms: AWS Fargate, Azure Container Apps, Google Cloud Run, and OCI Container Instances covering scaling, pricing, networking, and deployment workflows.
OpenCost Optimization Playbooks
Cost strategies, budget tools, and pricing comparisons to reduce your cloud bill across providers.
Cost Optimization Strategies
Practical strategies for reducing AWS costs with Reserved Instances, Savings Plans, and right-sizing.
OpenGuideCost Management Guide
Use Azure Cost Management, budgets, and reservations to optimize cloud spending.
OpenGuideCost Optimization Guide
Optimize GCP costs with committed use discounts, preemptible VMs, and resource recommendations.
OpenComparisonCloud Cost Comparison 2026
Apples-to-apples cost comparison across AWS, Azure, GCP, and OCI for compute, Kubernetes, storage, databases, serverless, egress, and load balancing with 2026 pricing data.
OpenToolMulti-Cloud Cost Optimization Checklist
Interactive checklist of cost optimization best practices across all three providers.
OpenGuideFinOps Across Clouds
Implement FinOps across clouds: tagging, budgets, anomaly detection, commitment management, and chargeback models.
OpenCLI Command References
Getting-started guides and CLI-centric references for AWS, Azure, GCP, OCI, and more.
Getting Started: Your First AWS Project
A beginner-friendly guide to launching your first AWS project, covering account setup, IAM users, EC2 instances, S3 buckets, and cleanup.
OpenGuideGetting Started: Your First Azure Project
A beginner-friendly guide to launching your first Azure project, covering account setup, resource groups, VMs, storage, and App Service deployment.
OpenGuideGetting Started: Your First GCP Project
A beginner-friendly guide to launching your first GCP project, covering account setup, project creation, Compute Engine, Cloud Storage, and Cloud Run.
OpenGuideGetting Started with Oracle Cloud
Set up your OCI account, create compartments, launch your first compute instance, and configure object storage.
OpenGuideTerraform for GCP
Getting started with Terraform on GCP including project setup, state management, and modules.
OpenGuideTerraform on OCI
Configure the OCI Terraform provider, manage compartments as code, and deploy infrastructure with best practices.
OpenMulti-Cloud Decision Guides
Side-by-side comparison pages and architecture decision guides for multi-cloud strategies.
Multi-Cloud Landing Zones
Guide to designing landing zones across AWS, Azure, GCP, and OCI covering account structure, network hub-and-spoke topology, centralized logging, security guardrails, and infrastructure as code.
OpenComparisonKubernetes Comparison: EKS vs AKS vs GKE
Compare managed Kubernetes across AWS EKS, Azure AKS, and GCP GKE, covering control plane, networking, autoscaling, security, and cost.
OpenGuideSecurity Posture Management
Comparison of CSPM tools: AWS Security Hub, Microsoft Defender for Cloud, GCP Security Command Center, and OCI Cloud Guard with compliance frameworks, auto-remediation, and multi-cloud strategies.
OpenGuideMulti-Cloud Disaster Recovery Guide
Design cross-cloud disaster recovery architectures with multi-cloud failover patterns, data replication, DNS failover, and compliance considerations.
OpenGuideTerraform Multi-Cloud Patterns
Design Terraform for multi-cloud: provider composition, modules, state management, workspaces, and CI/CD pipelines.
OpenGuideData Residency & Sovereignty
Guide to data residency and sovereignty across clouds covering GDPR, regional regulations, data boundary enforcement, sovereign cloud offerings, encryption key management, and compliance checklists.
OpenLooking for More?
These curated lists are a starting point. CloudToolStack has 576 interactive tools and 201 learning guides covering AWS, Azure, GCP, OCI, DigitalOcean, IBM Cloud, and multi-cloud architectures. Use the provider comparisons for head-to-head cloud evaluations, or dive into the full tool and guide catalogs to find exactly what you need.