About foldermap.app

foldermap.app is a small tool with one job: take a ZIP file and show you exactly what's inside, as a clean, interactive tree you can search, share, and export.

Why we built it

Anyone who has inherited a codebase, audited a client handoff, or dug through a research archive knows the ritual: unzip somewhere temporary, tree in a terminal, squint, delete. foldermap.app replaces that with a two-second drop-and-render — no install, no upload, no account.

How it works

• Your ZIP is parsed in your browser using a WebAssembly-backed unzip library.
• The folder tree is rendered locally; nothing is sent to our servers.
• You can export the structure as JSON, Markdown, CSV, or an SVG diagram.

Who it's for

Engineers reviewing code drops, technical writers documenting projects, teachers explaining repository layouts, archivists indexing datasets — anyone who needs to see a folder structure fast.

Get in touch

Ideas, bugs, or feature requests? Head to the contact page.