5 free file tools
Zip a folder, open an archive, verify a download or hunt down duplicates. Every one of these runs inside your browser, so your files are never uploaded to anyone.
Nothing is uploaded
There is no server behind these tools. Your files are read inside the page and never leave your device.
No waiting on an upload
Because there's no transfer, a 300MB archive opens as fast as a 3MB one — it's already on your machine.
Free and unlimited
No account, no daily cap, and no watermark or trial limit on anything you get back.
ZIP Creator
Bundle any set of files into a single .zip, without uploading them anywhere.
ZIP Extractor
Open a .zip and pull out the files you want — nothing is uploaded.
Checksum Generator
Verify a download by checking its MD5, SHA-1 or SHA-256 against the published value.
Duplicate File Finder
Find byte-identical files in a folder, whatever they happen to be named.
File Metadata Viewer
See a file's real type, size and modified date — including when the extension is lying.
Explore the other tools
Same deal everywhere on the site — free, no sign-up, and no watermark on anything you download.
Or see every tool on one page.