About CloudToolStack
Free, browser-based tools and learning resources built for cloud engineers, DevOps professionals, solutions architects, and anyone working with cloud infrastructure.
Our Mission
Cloud engineering involves constant context-switching between providers, services, and configurations. CloudToolStack exists to make that easier. We build practical, no-signup-required tools that help you calculate pricing, generate configurations, validate policies, convert formats, and learn cloud concepts -- all without leaving your browser.
Every tool is designed with real-world cloud workflows in mind. Whether you are sizing an EC2 instance, writing an Azure RBAC policy, building a GCP IAM binding, or comparing services across providers, our tools give you accurate results instantly.
What We Offer
575+ Interactive Tools
Purpose-built calculators, generators, validators, and converters for AWS, Azure, GCP, OCI, IBM Cloud, DigitalOcean, Alibaba Cloud, Linode, and cross-cloud comparison workflows.
200+ Learning Guides
In-depth, practical guides covering cloud architecture, security, networking, compute, storage, and more across eight cloud providers.
Privacy-First Design
Every tool runs entirely in your browser. Your data never leaves your device -- no server-side processing, no data collection.
Eight Cloud Providers
Tools and guides for AWS, Azure, GCP, OCI, IBM Cloud, DigitalOcean, Alibaba Cloud, and Linode — plus cross-provider comparison tools.
Who It's For
CloudToolStack is built for cloud engineers, DevOps professionals, solutions architects, SREs, security engineers, and students preparing for cloud certifications. Whether you are a beginner learning cloud fundamentals or a senior architect designing multi-cloud systems, our tools and guides are built to save you time and help you make better decisions.
Our Team & Expertise
Jeff Monfield
Founder & Lead Engineer
Cloud architect and security engineer with over 15 years of experience designing and operating infrastructure across AWS, Azure, GCP, and Oracle Cloud. Previously built cloud platforms at enterprise scale, holds multiple cloud certifications, and contributes to open-source cloud tooling.
CloudToolStack is built and maintained by cloud engineers and architects with hands-on production experience across AWS, Azure, and Google Cloud Platform. We have designed and operated infrastructure at scale, earned cloud certifications across all three major providers, and contributed to open-source cloud tooling.
We write guides and build tools based on patterns we have used in real production environments — not just rewritten documentation. When we explain how to size a GKE cluster, structure an IAM policy, or choose between Azure App Service and AKS, we draw on direct experience with those decisions and their consequences.
How We Build & Verify Content
Accuracy testing
Every tool includes unit tests that validate calculations against official provider pricing and documentation. Our test suite runs over 1,800 tests across the codebase.
Original code examples
Code snippets in our guides are written from scratch and tested, not copied from provider documentation. They reflect real-world patterns including error handling and production considerations.
Regular updates
Cloud services evolve quickly. We review and update our guides and tools when providers release new features, change pricing, or deprecate services. Every guide displays its last-updated date so you know how current the information is.
Privacy by design
Tools process everything client-side in your browser. We deliberately chose this architecture so that sensitive data like IAM policies, ARNs, and infrastructure configurations never leave your device.
Our Commitment to Quality
Every tool on CloudToolStack is tested for accuracy and built to reflect current cloud provider documentation and best practices. Our learning guides are written with practical, hands-on examples and kept up to date as cloud services evolve. We focus on delivering genuinely useful content rather than quantity -- if a tool or guide does not meet our standards, we do not publish it.
Get Started
Explore our tools and guides -- everything is free, no account required.