Free Engineering Tools

Tools Built by Engineers.
Free. No Account.

Practical tools that give you real answers — not marketing fluff. Use them, share them, judge us by them.

🔬Performance

Diagnose My Site

Get a real Google Lighthouse audit — Performance, Accessibility, SEO, and Best Practices — in under 60 seconds. Free, no account needed.

Run Free Audit
🏗️Architecture

Tech Stack Builder

Select the features your product needs and get an instant recommended architecture with timeline and tool choices — built by engineers, not marketers.

Build My Stack
🛡️Security

HTTP Security Scanner

Check if your SaaS is leaking data or vulnerable to XSS and Clickjacking attacks. Inspect raw HTTP response headers.

Scan Headers
💸Finance

SaaS Cost Estimator

Stop paying the legacy architecture tax. See how much a modern serverless stack saves your startup compared to bloated agency builds.

Calculate Savings