Svelte Inspector 5

The tool analyzes Svelte 5 components by constructing a structured model of the codebase. It exposes the component hierarchy, each component's props, slots, events, and the stores it subscribes to. It also identifies reactive declarations and their dependencies, offering a map of state flow through the UI. This model helps developers quickly understand coupling, identify heavy reactive paths, and validate architectural boundaries.
The core engine performs static analysis using the Svelte 5 AST, resolves inter-file relationships, and builds a dependency graph of reactive statements and store reads. It outputs a machine-friendly representation and a richer view for IDE plugins. Optional checks detect anti-patterns such as excessive reactive statements, unnecessary store subscriptions, and prop drilling beyond intended boundaries.
Because the tool integrates with builds and development workflows, it supports exporting to CI pipelines and IDE extensions. It can compare current results with prior builds to surface regressions, and can be extended to surface performance cues like estimated update costs. Primary beneficiaries are developers debugging behavior, performance engineers profiling reactivity, and teams migrating large codebases to version 5.