Locate large files and bloated folders to optimize storage
Local folder analysis • Interactive treemap • ASCII tree generator • No upload
Folder Heatmap
Analyze folder size distribution visually and generate exportable ASCII directory trees. Perfect for disk cleanup, project structure visualization, and storage auditing.
What this folder analyzer tool does
This tool provides two powerful ways to analyze your folders locally: Interactive Treemaps and ASCII Directory Trees. It analyzes your selected local folder, visualizes space usage, and generates standard file system tree diagrams. It helps you identify large files, audit project structures, and find disk cleanup opportunities. All processing happens 100% locally in your browser to protect your privacy.
How to use the folder analyzer
- 1.Select a local folder or project directory
- 2.Let the browser analyze sizes and hierarchy locally
- 3.Browse space distribution in heatmap mode or switch to tree mode
- 4.Export heatmap as PNG or download ASCII tree as .txt
Why this storage visualization & structure tool is useful
100% browser-side processing - your data never leaves your device
Generate GitHub-style project directory trees instantly
Heatmaps for space ratio, trees for logical hierarchy
Folder analysis FAQ
Are my folder contents or structures uploaded to a server?
Absolutely not. All analysis, heatmap rendering, and ASCII tree generation are performed locally in your browser. We do not collect or store any of your file data or directory paths.
What is an ASCII directory tree?
An ASCII directory tree is a text-based visualization of a file system using characters like ├── and └──. It is perfect for technical documentation, README files, or code structure audits.
When should I use the directory tree generator?
It is useful for explaining project structures, creating documentation, auditing folder hierarchies, or keeping a text record of folder contents. With depth limits, it can handle even complex large-scale projects.