Comparison Table

"Others" refers to typical React step/wizard hook libraries — no specific library is named. ⚠️ means the feature exists in some libraries but is inconsistent, partial, or untyped. ❓ means it is not publicly verifiable.

Category	Feature	Journey	Others
Architecture	Framework-agnostic core package	✅	❌
Architecture	TypeScript-first (strict generics throughout)	✅	⚠️
Architecture	Zero dependencies	✅	⚠️
Architecture	95%+ test coverage, enforced in CI	✅	❓
Architecture	Under 8 kB (core, brotli)	✅	✅
Navigation	Linear (sequential) flow	✅	✅
Navigation	goToNextStep()	✅	✅
Navigation	goToPreviousStep()	✅	✅
Navigation	isFirstStep / isLastStep	✅	✅
Navigation	stepCount / total steps	✅	✅
Navigation	Active step index	✅	✅
Navigation	onStepChange callback	✅	✅
Navigation	Start at a step other than the first	✅ by id	✅ by index
Navigation	Navigate to a specific step	✅ by id	✅ by index
Navigation	Graph mode (branching flows)	✅	❌
Navigation	Headless mode by id (caller-driven)	✅	❌
Computed state	isLoading (global)	✅	✅
Computed state	isLoading per step	✅	❌
Computed state	Machine status (isRunning, isComplete, isTerminated, isIdle)	✅	❌
Features	Shared typed context across all steps	✅	❌
Features	Typed step metadata (meta)	✅	⚠️
Features	onEnter / onLeave per step	✅	⚠️
Features	Guarded transitions (when)	✅	❌
Features	Global transitions (cross-cutting events)	✅	❌
Features	Pre-navigation async hook	✅	✅
Layout	UI-agnostic (you own the layout)	✅	❌
Layout	Built-in header / footer / wrapper slots	❌	✅
Layout	Built-in UI (progress bar, stepper indicator)	❌	⚠️
Layout	Animation / transition support	⚠️	⚠️
Layout	Form validation integration (e.g. RHF)	⚠️	⚠️
Async	Async guards	✅	❌
Async	Per-step async phase tracked in snapshot	✅	❌
Async	Per-transition timeout with error phase	✅	❌
History	Realized history timeline (not just index)	✅	❌
History	goToLastVisitedStep()	✅	❌
History	Visited-steps map in snapshot	✅	❌
Observability	Typed lifecycle event stream	✅	❌
Observability	Chrome DevTools extension	✅	❌
Ecosystem	Plugin API	✅	❌
Ecosystem	Persistence plugin (versioned + migrations)	✅	❌
React	useSyncExternalStore (React 18 concurrent-safe)	✅	❌
React	SSR / React Server Components compatible	✅	⚠️
React	useJourneyStepLifecycle hook	✅	❌
React	useJourneySelector with custom equality	✅	❌