Files - Checksum Calculators (28)

CHK is simple checksum program that can verify downloaded files from the Internet, hash your files to ensure integrity and help detect duplicates. Supports drag-and-drop and most popular hash protocols including CRC-16/32/64, ED2K, MD4/5, SHA-1/256/512/3, BLAKE2sp/b, BLAKE3 etc.

RapidCRC Unicode is a hashing program capable of checking and verifying the integrity of files, folders, or whole drives. The program includes process priority, ability to pause/resume analysis, job queuing, easily copy hashes to the clipboard and multi-threaded checks. If using checksum files (e.g. .sfv or .md5) for future verification, options include the ability to generate for every analyzed file, directory, or a single checksum with all hash data.

Includes direct support for CRC hashing in the filename (common for anime releases) for example: "MyFile [45DEF3A0].avi") Other algorithms range from fast to secure, including SFV(CRC32), MD5, ED2K, SHA-1/256/512 and Blake2sp.

Based on the original RapidCRC but updated with extended Unicode support.

MultiPar helps protect backups and transfers with error detection and recovery. The program looks at information from any number of files and folders to function as insurance against data loss. The program generates companion "PAR" files that are built from a percentage of the originals, using more space for greater protection (e.g. 10% of the original for already safe methods, 50% for frequent failures).

The program has a wide variety of customizations including format, processor usage, and various other tools available to the standard PAR format. For backups, it can also choose PAR size by available free space (e.g. saving a 3 gig file to a 4.7 gig DVD will mean generating a 1.7 gig PAR file).

Functional in Linux/Mac via WINE. The program supports multi-threading, multiple processors, can recurse subfolders, and functions with standard formats including PAR, PAR2, and (experimental) PAR3 formats.

HashMyFiles is a small utility that allows you to generate unique file identifiers (hashes) using a variety of popular checks. These can help determine if a file has been modified or corrupted, as well as help determine the file's reputation by submitting to the VirusTotal database for malware analysis.

Formats supported range form fast to secure with CRC32, MD5, SHA1/-256/-512/-384. The various hashing information can be saved to a report (text/HTML/XML/CSV/TSV) that includes name, path, dates, file size, version and other info.

Hashing is a tool for creating unique hash values to identify and examine files. This allows verification, duplication analysis, and can be used for file security (via the VirusTotal service). The program supports UPPER/lower case, drag and drop, batch processing and file export for later verification.

Available hashes include commonly-used algorithms CRC32, MD5, SHA1/256/384/512 and RIPEMD160.

RekSFV is a checksum generator and verifier that can evaluate files and whole directories. When scanning, the program checks for all supported files and verifies any found checksums. The program supports drag and drop, stay-on-top, minimize to tray, shortcut keys, multiple instances, sound notification and more.

The program supports several hashing algorithms including SFV, MD5, SHA1, SHA256, SHA512.

fHash is a simple, drag-and-drop tool that helps determine if a file has been changed, modified, or corrupted via a hash string. The program can evaluate multiple files and supports MD5, SHA1, SHA256 and CRC32 hashes. Includes a verification capability that searches evaluated files for a given hash.

Cross platform with a client available for Mac.

Hasher is a file verification system supporting drag-and-drop, multiple hashes at one time and a log viewer to show a list of processed files. The program can save to a verification file or copy hash results to clipboard. Many compare options are available or you can run multiple instances to compare hash results side-by-side.

Note: Lite version is restricted to 100 files per hash run.

The program works with files, directories, or text, supports Unicode paths and covers most common hash formats including CRC32, MD5, SHA1. Also features the high-security SHA256/512 among others.

IgorWare Hasher can be used to generate a checksum for a single file or verify its integrity using verification files (.sha, .md5 and .sfv) generated by many hashing programs. The program supports UTF-8 verification files and are automatically verified if found.

CRC32, MD5 and SHA-1 hashes are supported.

PocketHash is an extremely minimal hash utility with a convenient VirusTotal lookup button.

MultiHasher is a drag-and-drop tool for creating and checking file hashes, useful for checking data integrity. The program will check files, folders and even text using a variety of methods with both pause and cancel options for large operations. The program can then compare digests to detect changes as well as query the result to the VirusTotal database. A search tool lets you quickly track down both files or specific hashes from long lists.

A recursive checking option (entire directory trees) is available in the options menu. The program can also use existing, standard hash files such as MHX, SFV, MD5Sum etc. to check integrity.

Supports 64-bit operating systems and available algorithms include from fastest to most secure: CRC32, MD5, RIPEMD-160, SHA 1, 256, 384 and 512. Can include one, some, or all algorithms available in testing.

CRCDropper simple and tiny checksum generator that can calculate hashes for multiple files simultaneously. The program allows drag-and-drop of files and hashes can be exported to single file or to separate files. The program can make hashes in lower/UPPER case, can be configured to stay on top, and allows command line usage.

The program supports 10 hashing algorithms (CRC16, CRC32, MD2, MD4, MD5, RIPEMD160, SHA1, SHA256, SHA384, SHA512).

HashFiles is lightweight checksum generator to check if a file has been changed, modified or corrupted. It features drag-and-drop for both files and folders, "Always on Top" mode, easy export of calculated hashes to clipboard or to text file. The program supports CRC32, MD5, SHA1 and SHA256 hashing algorithms and generated info can be lower/UPPER case.

Functional in 64-bit. Note that SHA256 requires WinXP+.

Fsum Frontend allows to compute message digests, checksums, and HMACs for files and text strings. It supports drag-and-drop and can function on batches of files at once either for creation or verification.

The program supports a host of different hashes including common like CRC32, MD5, and SHA256 as well and many obscure hashing methods (96 total). Allows both batch creation and verification.

As the name implies, the program uses FSUM.

Checksum Control is an easy-to-use utility to generate and verify checksums on individual files or groups. The program employs a wizard interface to walk through the process of creating or verifying sets of files. The program includes advanced options to handle renaming of bad files, as well as how to handle files in memory while processing.

Supports SFV and MD5 hashing methods.

Checksum Control Portable is a wrapper version of this software. Functional on 64-bit systems.

MD5Checker is a fast and lightweight tool to calculate and verify MD5 files hashes of multiple files and folders. Calculated MD5 File hashes can be saved and loaded to/from files.

Note that a separate download is available from the website for Win9x/Me.

MD5 Checksum Tool is a drag-and-drop hash checking tool that can generate a file checksum to analyze if a file has changed, usually to affirm it's legitimate and uncorrupted. The program can scan a folder and subfolders (recursively), as well as provide a report of all files, their size, and checksums. Supports very large files (4GB+) and includes a progress bar to estimate remaining time.

The program will allow the comparison of two files with their respective checksums and supports MD5, SHA1, SHA256, SHA384 and SHA512 checksums.

A 64-bit version is available (within the x64 folder).

md5hash is a simple tool for calculating file checksums via drag-and-drop. To hash multiple files (including whole directories), right click on the window and select "view session" from the menu. There is no current batch verification mechanism for these logs.

Supports the following hashing algorithms: MD2, MD4, MD5, SHA1, SHA224, SHA256, SHA384, SHA512, CRC16, CRC32, ADLER32.

DP Hash is file verification program that can calculate and verify hashes from a wide variety of tools. The program supports 34 hash algorithms, from CRC16 for the fastest, most basic file check to a slow SHA512 for high security. Includes lesser-known checks like Snefru128 and BMW256 for specialized operations.

Languages: German, Italian, Czech

Snap MD5 is a simple utility to validate the sum of downloaded files. It calculates the MD5 and SHA-1 of the file and compares it with the text in the clipboard to check for a match.

Supports 64-bit.

HJSplit can split and join files above 100 GB. It can also compare files and calculate their checksum. The program is cross-platform with tools available for 9+ operating systems, including Mac, DOS, and OS/2. Functional in 64-bit.

NOTE: Website is gone, linking to Internet Archive Wayback Machine.

MD5 Checksum Calculator is a small, simple utility for calculating and comparing the MD5 checksum values of specified files.

Note: Main site offline, linking to softpedia

Hash is simple drag-and-drop file verification tool. The program displays file size, modified date MD5, SHA1, and CRC32 functions on any number of files. Results displayed in the window can easily be copied to the clipboard or saved to a text file. The program allows direct browsing of multiple files.

Includes command-line capabilities with support for wildcard selections.

dsSHA calculates the SHA-1 checksum for any given file, with the option to copy the checksum value to the clipboard.

dsMD5 calculates the MD5 checksum for any given file, with the option to copy the checksum value to the clipboard.

MD5 GUI is a MD5 checksum generator and verifier. The generated checksum can be viewed on screen, copied to the clipboard, or saved to a file (for use with the checksum verification function).

eXpress CheckSum Calculator is great for verifying the integrity of files downloaded from the Internet. Similar utilities install new shell menus and/or tabs, which I dislike, because experience have shown that badly written shell utilities will make Windows Explorer less stable. Why sacrifice system stability when you can use small, simple utilities like these instead?