simple checksum

checksum's little brother!

simple checksum's cute wee window

Wherever checksum goes, his wee brother usually tags along. He's called simple checksum, an ultra-low profile desktop application, designed for ad-hoc drag-and-drop hashing tasks. He's the good-looks to checksum's muscle, which he borrows. He really is a mere strip of a lad!..


Yes, but he's smarter than he looks, and not only supports drag-and-drop file hashing, but on-demand string hashing, as well as hash-perfect file comparison. You can also drag and drop files directly onto his program icon (or a shortcut to it, maybe on your desktop), as well as supply file names on the command-line and/or hashes in the clipboard, to launch immediately into a checksum calculation or comparison job, done. Simple, sure, but clever, too!


Uses the same ultra-fast 32 or 64 bit hashing engine as his big brother, checksum. Enough said.

Yet, fully featured.. simple checksum doing SHA-1

simple checksum supports both MD5 and SHA1 hashing algorithms and is completely FREE (it comes with checksum). So feel free to throw a shortcut somewhere handy (maybe in your SendTo menu), always ready for instant hashes and file comparison jobs.

simple checksum is designed to sit out-of-the-way somewhere, and supports transparency and "always on top" bit-setting for extended desktop usage, enabling you to do visual comparisons of online checksums, even with your web browser open full screen. simple checksum doing XP transparency

You can show/hide simple checksum by simply clicking its system tray icon. Everything has ToolTip help, even the system tray icon.

Easily switch between MD5 and SHA1 hashing with HotKeys or via simple checksum's application menu - simple checksum will recalculate the hash using the new algorithm, without the need for a second drag-and-drop.

simple checksum's application menu - algorithm sub-menu selected

Launch simple checksum with a file (via drag & drop, SendTo, etc.), and get an instant MD5 or SHA1 hash, ready to view or copy into your clipboard. Launch with a hash in the clipboard, perhaps with drag-and-drop, and simple checksum performs an instant hash compare..

simple checksum doing SHA-1

simple checksum's new Auto.. menu enables you to automatically send your hashes to either your Windows® ClipBoard, or directly to a fresh .hash file, as part of one simple drag and drop. Switch algorithm (Alt-M or Alt-S) and with AutoSave enabled, you've got yourself a MD5+SHA1 MultiHash™ from a single drag and drop!

Drop Two files, and simple checksum transforms into a simple, highly efficient file comparison utility…

File Compare..

Drop Two files onto simple checksum; either the program itself (or a shortcut to it), or directly onto its input, and simple checksum will compare them, using your currently selected hashing algorithm. If the files are identical, you get "Files MATCH!", and if not, "Files DO NOT MATCH!", simple as that.

If required, you can get to the actual hashes by hitting Alt-C. If the hashes were different, hitting Alt-C a second time will get you the second hash. From then on, Alt-C toggles between the two hashes.

When comparing files, if AutoCopy is enabled, your clipboard will contain a mini-report, with the two file names, their individual hashes, and right at the top, the status of the file comparison; match or not.

Web Hash Compare..

If you send a file to simple checksum (via Drag & Drop, SendTo menu, or by dropping a file on its input) and there is a hash in your clipboard, simple checksum will immediately compare it to the dropped file and report whether or not they match (rather than report the hash string - if you need that, IT'S IN YOUR CLIPBOARD!)

This makes it a no-brainer to compare the hashes of download files with the hashes published on web sites, simply copy the hash from the page (select it, hit Ctrl+C) and then drop the downloaded file into simple checksum. TADA!

It also means that you can compare the hashes of two files that are not physically next to each other; with Auto-Copy enabled, drag the first file into simple checksum - its hash is placed in the clipboard. When you drag-and-drop the second file, simple checksum will compare its hash to the one in the clipboard.

simple checksum will automatically switch between MD5 and SHA1 hashing depending on the type of hash in your system clipboard.

If you have Auto-copy-to-clipboard enabled, it will deactivate when comparing hashes with the clipboard, your original hash will still be there after the operation.

simple checksum is FREE! (as in beer)
(it is installed along with checksum)

After a month or so, checksum will remind you that it is Shirtware, but simple checksum keeps on working without interruption, for life. En-joy!

get it!

simple checksum's cute green icon

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