Free Developer Tools
Production-tested utilities from 8+ years of DevOps experience. No signup, no ads, just tools that work.
Cron Expression Generator
Build and decode cron expressions with plain English. Instant validation, next run times, and copy-ready output.
YAML/JSON Validator
Validate, format, and convert between YAML and JSON instantly. Detailed error messages with line numbers.
SaaS Idea Validator
Score your startup idea against 20 battle-tested criteria. Get objective feedback before you invest months building.
Social Preview Generator
Create beautiful Open Graph images for your pages. Three professional variants with instant PNG export.
Coming Soon
MRR Calculator
Calculate SaaS metrics, runway, and growth projections.
Coming Soon
Startup Cost Estimator
Estimate your monthly burn rate and runway for your SaaS.