Lookup•Client-Side Processing

File Extension Lookup

Search over 500+ file extensions (.json, .ts, .wasm, .webp) with descriptions and associated apps.

Developer workbench

Configure. Run. Inspect.

Runs locally. Inputs and results are not automatically saved.

⌘ / Ctrl + Enter to run

Input

4 input bytes

Type any extension in the search box (e.g. wasm, ts, svg, env).

View file category, MIME type, and software associations.

Copy file type details.

WebAssembly binary format for high-performance browser execution.

Explore more free client-side developer utilities in this category