Understand your files.
Fix small problems.
Protect your privacy.
A privacy-first toolbox for inspecting, verifying, and fixing common file issues. All processing happens locally in your browser.
Compute MD5, SHA-1, and SHA-256 checksums, verify a download, detect a file's real type from magic bytes, view or strip EXIF and GPS metadata, find duplicate files, and safely peek inside unknown files. New here? Start with our guides.
Your files never leave your device
All tools run completely in your browser using JavaScript. Your files are never uploaded and never leave your device. Even when you load a file from a URL, your browser downloads it directly—our server never sees it.
Available Tools
File Hash Checker
Compute MD5, SHA-1, SHA-256, SHA-384, and SHA-512 checksums
Hash Comparator
Compare computed hash with expected value
File Identity
Detect real file type using magic bytes
Validate Extension
Check if extension matches actual file type
Extension Changer
Rename file extensions (does not convert format)
Metadata Viewer
View EXIF data and file metadata
Metadata Stripper
Remove metadata from images
Duplicate Detector
Find duplicate files by comparing hashes
Filename Sanitizer
Generate safe, cross-platform filenames
Safe File Peek
Inspect file headers and properties safely
Privacy First
Your files stay on your device — no uploads, ever.
Fast & Efficient
Processing happens locally with optimized algorithms and Web Workers.
Works Offline
Once loaded, most tools work without an internet connection.
Frequently Asked Questions
Are my files uploaded to a server?
No. Every InspectFiles tool runs entirely in your browser using JavaScript and the Web Crypto API. Your files are never uploaded to our servers — even when you load a file from a URL, your browser fetches it directly.
Which hash algorithms are supported?
InspectFiles can compute MD5, SHA-1, SHA-256, SHA-384, and SHA-512 checksums. SHA-256 is recommended for general-purpose integrity verification; MD5 and SHA-1 are provided for compatibility with legacy systems but are not cryptographically secure.
How does file type detection work?
The File Identity tool reads the first bytes of the file (the “magic bytes” or signature) and matches them against a database of known file formats. This is more reliable than trusting the filename extension, which can be incorrect or spoofed.
Can I remove EXIF metadata from photos?
Yes. The Metadata Stripper removes EXIF, GPS, and other embedded metadata from images directly in your browser, then lets you download the cleaned file. Nothing is sent over the network.
Does InspectFiles work offline?
Yes. Once the page is loaded, most tools work without an active internet connection because all computation happens locally in your browser.
Is InspectFiles free to use?
Yes. All tools on InspectFiles are completely free, with no signup and no ads. InspectFiles isn’t run to make money. Ads on a site this small would earn next to nothing, and they would mean loading third-party trackers onto a site built around privacy, which is not a trade worth making.