Dev Tools

Free browser-based tools for cloud engineers and developers. All tools run entirely in your browser — no data is sent to any server, no account required.

Dev Tools

Cron Expression Generator

Build and validate cron expressions visually. See the next scheduled run times and get a plain-English explanation of any expression.

Regex Generator

Write, test, and debug regular expressions with live match highlighting and a reference of common patterns.

UUID Generator

Generate one or many UUIDs (v4) instantly. Copy individually or in bulk for use in APIs, databases, and config files.

Base64 Encode / Decode

Encode plain text or binary data to Base64 and decode Base64 strings back to plain text in one click.

JWT Decoder

Paste any JSON Web Token to instantly decode the header and payload. Inspect claims, expiry, and issuer without sending data to a server.

Tools by provider

GCP Tools

Estimate Cloud Run costs by request volume, duration, memory, and CPU. Free tier included in the breakdown.

AWS Tools

Estimate EC2 instance costs across 50+ instance types with on-demand, reserved, and spot pricing.

Azure Tools

Estimate Azure Container Apps costs with active compute, idle replicas, and egress.

Career Tools

10-question cloud career path builder with a personalised 30/90/180-day plan and certification guide.

About these tools

All tools on CloudWebSchool run entirely in your browser using JavaScript. No input data is collected, stored, or transmitted to any server. They are educational aids to help you plan, estimate, and understand cloud infrastructure — not billing forecasts, official quotes, or invoices.

Always verify cost estimates with the official pricing documentation for your chosen provider and your own billing reports before making financial or architectural decisions.