01
Hostile by design
Narrow containers, long content, scaled text, RTL flow, focus, motion, and product states become part of the workflow.
CSS reliability studio
Build CSS that survives the real world.
Design visually, attack every assumption, and repair weak components before they reach users. A private, browser-native workspace for stronger frontend systems.
✓ No signup✓ No code uploads✓ Production-ready output
component.reliability
Reliability score
88/100
Solid ↑ 56
01Source audit
6 findings02Content mutation
7 scenarios03Chaos Matrix
5 environments04Hardened output
No overflow$ build → break → repair → ship
The toolkit
From first pixel to final stress test.
Start with a visual generator or bring existing code directly into the reliability workflow.
01
↗Reliability engine
CSS Doctor
Audit source, force states, mutate content, and apply selective repairs.
AuditMutateRepair
02
↗Color systems
Gradient Generator
Linear & radial CSS gradients with live preview.
03
↗Depth & elevation
Box Shadow Generator
Stack up to 4 shadow layers for realistic depth.
04
↗Shape language
Border Radius Generator
Per-corner control for pills, blobs, and organic shapes.
05
↗Visual composition
Combo Builder
Build a complete component, then stress-test it in Chaos Mode.
02
Repairs you control
Every safe change is visible and reversible. Context-dependent decisions stay in your hands instead of being guessed.
03
Private by default
Editors, analysis, previews, projects, and reports run locally. Your component source never needs to leave the browser.
A better frontend loop
Stop discovering CSS failures after release.
Bring one component. Leave with evidence, accepted repairs, hostile-state previews, and portable CSS.