/

File Format Inspector

File Format Inspector

Read actual file headers, check formats and extensions, and download reports or byte-identical copies.

Runs in this browser

0Files

0Extension differences

Common images, archives, media, PDF, fonts, SQLite, ELF, PE, and WebAssembly.

Only the first 64 KB is inspected. Signatures and text hints do not prove validity, safety, or readability. ZIP and ISO BMFF identify containers only. Copies change the suggested extension only. JSON includes names, results, and the first 64 bytes. Files are not retained.

Select files to begin.

© 2026 PureWebKit. All rights reserved.