Stratum

Precision structural analysis for compiled assets. Deconstruct your source maps to identify bloat, audit dependencies, and optimize bundle architecture.

Strategic Insights

Stratum processes raw VLQ mappings directly in your browser to provide a comprehensive, hierarchical treemap of your application's structural composition.

Zero server-side processing
Accurate byte-level contribution analysis
Deep inspection of unmapped code
Direct source code exploration

Initialize Telemetry

Drag & drop a .map file, or a paired .js and .map

Stratum

bundle.js

A layered analysis of your application bundle. Nodes proportional to bytes.

How it Works:

This premium utility manually decodes the complex VLQ mapping format within your browser. It parses every line and column to exactly which original source file contributes the size to the final payload.

Audit Tree-Shaking:

Instantly spot imported but unused code. Use the dynamic Sunburst chart to discover hidden architectural dependencies.

Core Metrics

Resolvable Payload 0 B

Total Original Nodes 0

Unmapped Code Bytes 0 B

Stratum

Strategic Insights

Initialize Telemetry

source.js