base on 📝 File hashing and checking shell extension # OpenHashTab [](COPYING) [](https://hosted.weblate.org/projects/openhashtab/main/) [](https://github.com/namazso/OpenHashTab/releases/latest) [](https://github.com/namazso/OpenHashTab/releases/latest) [](https://chocolatey.org/packages/openhashtab/)  ## About OpenHashTab is a shell extension for conveniently calculating and checking file hashes from file properties. ## Features * Support for 28 algorithms, see **Algorithms** * High performance hash calculation * Native Windows looks * High DPI screen support * Long path support\* * Multilingual (Consider contributing to translation!) * Check hashes against VirusTotal with a button * Hash checking against a checksum file (Supported: hex hash next to file, \*sum output (hex or base64), corz .hash, SFV) * Hash export to file or clipboard (Supported: \*sum output, corz .hash, SFV) * Optional context menu option for faster access * File associations and standalone mode \* to the extent Windows and configuration supports it. [Enable long paths](https://www.tenforums.com/tutorials/51704-enable-disable-win32-long-paths-windows-10-a.html) on 1607+ for better support. ## System requirements * Windows 7 or later (x86 / x64 / ARM64) * 1 GB RAM or more (for efficient hashing of more than 512 files at a time) ## Usage Most of the actions should be obvious. Some not-so-obvious features are listed here: * You can select multiple files or folders, all files will be hashed, directories traversed * Double click hash to copy it * Double click name or algorithm to copy the line in sumfile format * Right click for popup menu: copy hash, copy filename, copy line, copy everything * The counters next to the status text is in the format `(match/mismatch/nothing to check against/error)` * Columns sort lexicographically, except the hash column which sorts by match type * Selecting the tab on a sumfile will interpret it as such and hash the files listed in it. * If a hashed file has a sumfile with same filename plus one of the recognized sumfile extensions and the option for it is enabled, the file hash is checked against it. ### Advanced features **Override Windows language selection** Add a `DWORD` named `LangIdOverride` to `HKEY_CURRENT_USER\SOFTWARE\OpenHashTab` with your preferred [LCID](https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-lcid/70feba9f-294e-491e-b6eb-56532684c37f) **Disable VirusTotal button for all users on a machine** Add a `DWORD` named `ForceDisableVT` to `HKEY_LOCAL_MACHINE\SOFTWARE\OpenHashTab` with a nonzero value ## Algorithms * CRC32, CRC64 (xz) * xxHash (XXH32, XXH64) * xxHash3 (64 and 128 bit variants) * MD4, MD5 * RipeMD160 * Blake2sp * SHA-1 * SHA-2 (SHA-224, SHA-256, SHA-384, SHA-512) * SHA-3 (SHA3-224, SHA3-256, SHA3-384, SHA3-512) * BLAKE3 (256 bit, 512 bit) * KangarooTwelve (264 bit, 256 bit, 512 bit) * ParallelHash128 (264 bit) and ParallelHash256 (528 bit) * Streebog (GOST R 34.11-12) (256 bit, 512 bit) ## Download [Latest release](https://github.com/namazso/OpenHashTab/releases/latest) [Latest development build](https://nightly.link/namazso/OpenHashTab/workflows/ci/master/setup.zip) [Development builds](https://github.com/namazso/OpenHashTab/actions?query=branch%3Amaster) ## Screenshot   ## Donations This software is provided completely free of charge to you, however I spent time and effort developing it. If you like this software, please consider making a donation: * Bitcoin: 1N6UzYgzn3sLV33hB2iS3FvYLzD1G4CuS2 * Monero: 83sJ6GoeKf1U47vD9Tk6y2MEKJKxPJkECG3Ms7yzVGeiBYg2uYhBAUAZKNDH8VnAPGhwhZeqBnofDPgw9PiVtTgk95k53Rd ## Translation  Translate the project at [Weblate](https://hosted.weblate.org/projects/openhashtab/main/) ### Translation contributors In addition to contributors reported by git, some translations were also contributed by: **xprism**, **[@NieLnchn](https://github.com/NieLnchn)** (Simplified Chinese), **Niccolò Zanichelli** (Italian) ## Building ### Requirements * Visual Studio 2022 (with desktop C++, ARM64, clang-cl) * vswhere in PATH * CMake * InnoSetup ### Compiling 1. Run build_algorithms.ps1 2. Run build_openhashtab.ps1 3. Use Inno Setup Compiler to compile installer.iss More options and commands can be found in the [GitHub Actions workflow](.github/workflows/ci.yml) ## Relationship to HashTab HashTab was a similar purpose proprietary software. While this software has been inspired by it, I was never a user of HashTab and this software contains no code or resources related to it. ## License All original code in this repo are licensed under the following license, unless explicitly stated otherwise in the file: Copyright 2019-2025 namazso <[email protected]> OpenHashTab - File hashing shell extension OpenHashTab is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. OpenHashTab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenHashTab. If not, see <https://www.gnu.org/licenses/>. This software also contains or uses code from various other sources, for a complete list see [license.installer.txt](license.installer.txt) ", Assign "at most 3 tags" to the expected json: {"id":"13222","tags":[]} "only from the tags list I provide: [{"id":77,"name":"3d"},{"id":89,"name":"agent"},{"id":17,"name":"ai"},{"id":54,"name":"algorithm"},{"id":24,"name":"api"},{"id":44,"name":"authentication"},{"id":3,"name":"aws"},{"id":27,"name":"backend"},{"id":60,"name":"benchmark"},{"id":72,"name":"best-practices"},{"id":39,"name":"bitcoin"},{"id":37,"name":"blockchain"},{"id":1,"name":"blog"},{"id":45,"name":"bundler"},{"id":58,"name":"cache"},{"id":21,"name":"chat"},{"id":49,"name":"cicd"},{"id":4,"name":"cli"},{"id":64,"name":"cloud-native"},{"id":48,"name":"cms"},{"id":61,"name":"compiler"},{"id":68,"name":"containerization"},{"id":92,"name":"crm"},{"id":34,"name":"data"},{"id":47,"name":"database"},{"id":8,"name":"declarative-gui "},{"id":9,"name":"deploy-tool"},{"id":53,"name":"desktop-app"},{"id":6,"name":"dev-exp-lib"},{"id":59,"name":"dev-tool"},{"id":13,"name":"ecommerce"},{"id":26,"name":"editor"},{"id":66,"name":"emulator"},{"id":62,"name":"filesystem"},{"id":80,"name":"finance"},{"id":15,"name":"firmware"},{"id":73,"name":"for-fun"},{"id":2,"name":"framework"},{"id":11,"name":"frontend"},{"id":22,"name":"game"},{"id":81,"name":"game-engine "},{"id":23,"name":"graphql"},{"id":84,"name":"gui"},{"id":91,"name":"http"},{"id":5,"name":"http-client"},{"id":51,"name":"iac"},{"id":30,"name":"ide"},{"id":78,"name":"iot"},{"id":40,"name":"json"},{"id":83,"name":"julian"},{"id":38,"name":"k8s"},{"id":31,"name":"language"},{"id":10,"name":"learning-resource"},{"id":33,"name":"lib"},{"id":41,"name":"linter"},{"id":28,"name":"lms"},{"id":16,"name":"logging"},{"id":76,"name":"low-code"},{"id":90,"name":"message-queue"},{"id":42,"name":"mobile-app"},{"id":18,"name":"monitoring"},{"id":36,"name":"networking"},{"id":7,"name":"node-version"},{"id":55,"name":"nosql"},{"id":57,"name":"observability"},{"id":46,"name":"orm"},{"id":52,"name":"os"},{"id":14,"name":"parser"},{"id":74,"name":"react"},{"id":82,"name":"real-time"},{"id":56,"name":"robot"},{"id":65,"name":"runtime"},{"id":32,"name":"sdk"},{"id":71,"name":"search"},{"id":63,"name":"secrets"},{"id":25,"name":"security"},{"id":85,"name":"server"},{"id":86,"name":"serverless"},{"id":70,"name":"storage"},{"id":75,"name":"system-design"},{"id":79,"name":"terminal"},{"id":29,"name":"testing"},{"id":12,"name":"ui"},{"id":50,"name":"ux"},{"id":88,"name":"video"},{"id":20,"name":"web-app"},{"id":35,"name":"web-server"},{"id":43,"name":"webassembly"},{"id":69,"name":"workflow"},{"id":87,"name":"yaml"}]" returns me the "expected json"