Portable file checksum verifier that allows you to calculate many file checksums (hashes) and compare them with original one. Thanks to its simplicity and portability, it aims to be a portable, versatile and "must have" tool for dealing with single files and their checksums - to calculate, compare and verify them.

Marxio FCV supports major checksum types:
- CRC32,
- MD4,
- MD5,
- SHA1,
- SHA-256,
- SHA-384,
- SHA-512,
- RIPEMD-128,
- RIPEMD-160,
- HAVAL 256,
- TIGER 192.

"Drag and drop" function - all you need to to is to drag a file from Windows Explorer onto the form to calculate selected checksum type.

Context menu - optional integration with Explorer context menu with Your custom text and defined selected checksum to calculate

Compare checksums - with other selected checksum.

Large files support - with size over 32 GB.

Very fast - calculate 4 GB large DVD file/image in 2 minutes using md5 algorithm.

Portable version - one-file program, just one executable file.

Interface - simple, eye friendly with mini-form available.

Keyboard shortcuts - as much handy shortcuts as possible, even for copy and paste checksum from clipboard

Save checksum to file - checksum and filename.

History - save all calculated checksums to file.

Additional settings - stay-on-top, save windows position and last used checksum type, show mini-form, show hashes in upper or lowercase, break function, high contrast themes support, log file, snap to edge - all are configurable.

Frequent updates - new releases published even a week !

Donationware - it's free of spyware to make it clean software, but donations are welcome to support further improvements.

Vision difficulties - this application provides support for users with vision difficulties (vision impairment) - respects Windows skins and color schemas.


Marxio FCV is a clean software. It does not contain any adverts, exists in only one free version and not in so called Lite, Standard, Pro. It does not integrate with Windows, does not install any other software and has no spying mechanisms.

FCV is donationware licensed. It means that as long as someone donates a coin from time to time, Marxio FCV and other programs are available for free and yet constantly improved on user's suggestions. Otherwise, it can vanish from internet in one day. Respect others' work.

...or if You haven't found the function you looked for, I can develop it. Read more here

Note ...
Marxio FCV target is to quickly calculate and verify ONE file and one checksum, not more. It's not any limit but this application works that. Other application is being developed for calculating more files, but it's currently suspended. Read more here.



Changes in the latest versions

-	Antibug system disabled completely on user's requests. Only a warning shows up after 2 months (can be turned off of course)
-	window scaling (DPI) support for users with vision difficulties (vision impairment)
-	windows horizontal resizing possible
-	split form saving action into 3 parts: style, width and position
-	main program window can now be moved partly out of screen - no desktop width or height limit
-	new keyboard shortcuts to copy and paste checksum (ctrl+c, ctrl+v)
-	auto-paste checksum from clipboard
-	context menu additional position for selecting last used/calculated checksum (F2) - previously now available
-	last selected checksum is highlighted on "Select checksum to calculate" form
-	toggle form style with F12 key, popup "Settings" with F10 key
-	selecting .lnk file in "Open file" dialog now opens target file and not that .lnk file
-	change context menu title and fix shell integration functions are now available under "Options" button
-	show file name on program title bar - or not :)
-	display hashes using bold font (more readible)

Planned improvements in next release

- all suggested now implemented :)