Open Source Windows Encryption Software
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Encryption Software for Windows
View 63 business solutionsBrowse free open source Encryption software and projects for Windows below. Use the toggles on the left to filter open source Encryption software by OS, license, language, programming language, and project status.
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VeraCrypt
Open source disk encryption with strong security for the Paranoid
VeraCrypt is a free disk encryption software brought to you by IDRIX (https://www.idrix.fr) and based on TrueCrypt 7.1a. It adds enhanced security to the algorithms used for system and partitions encryption making it immune to new developments in brute-force attacks. It also solves many vulnerabilities and security issues found in TrueCrypt. This enhanced security adds some delay ONLY to the opening of encrypted partitions without any performance impact to the application use phase. This is acceptable to the legitimate owner but it makes it much harder for an attacker to gain access to the encrypted data. All released files are PGP signed with key ID=0x680D16DE, available on key servers and downloadable at https://www.idrix.fr/VeraCrypt/VeraCrypt_PGP_public_key.asc VeraCrypt can mount TrueCrypt volumes. It also can convert them to VeraCrypt format. Documentation: https://www.veracrypt.fr/en/Documentation.html FAQ : https://www.veracrypt.fr/en/FAQ.html -
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Shadowsocks for Windows
A secure socks5 proxy for Windows
Shadowsocks for Windows is a free and open source, high-performance secured socks5 proxy designed to protect your internet traffic. It allows you to surf the web privately and securely, and offers a number of useful features such as HTTP proxy support, system proxy configuration, server auto switching and plugin support. Shadowsocks is incredibly fast, as it utilizes bleeding edge techniques with Asynchronous I/O and event-driven programming. It also has a flexible industry-level encryption algorithm that supports custom algorithms. Shadowsocks for Windows requires a Microsoft .NET Framework 4.7.2 or higher, as well as Microsoft Visual C++ 2015 Redistributable (x86). -
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WinRAR
Compress, Encrypt, Package and Backup with only one utility
WinRAR is a powerful file archiver and compression tool that supports multiple file formats, including RAR and ZIP. It is widely used for compressing large files into smaller, more manageable sizes and decompressing files into their original format. WinRAR offers advanced features for both personal and professional use, such as file encryption, password protection, and splitting large files into smaller parts for easier storage or transfer. Its intuitive interface makes it easy for users to compress, encrypt, and share files quickly and efficiently. -
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Advanced Onion Router is a portable client for the OR network and is intended to be an improved alternative for Tor+Vidalia+Privoxy bundle for Windows users. Some of the improvements include UNICODE paths, support for HTTP and HTTPS proxy protocols on the same Socks4/Socks5 port with HTTP header filtering that generates fake identity-dependent headers every time the identity is changed (proxy chains are also supported), support for NTLM proxies, a User Interface that makes Tor's options and actions more accessible, local banlist for forbidden addresses, private identity isolation, a point-and-click process interceptor that can redirect connections from programs that don't support proxies, also giving them fake information about the local system and support for .onion addresses. Also, it can estimate AS paths for all circuits and prevent AS path intersections, it can restrict circuits to be built using only nodes from different countries, can change circuit lengths and more.
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Error to trace to log to deploy. One click. No SSH.AppSignal links every error to the trace, the trace to the log, the log to the deploy that shipped it.
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Gpg4win
GnuPG for Windows
Gpg4win is the official Windows distribution of the GnuPG encryption ecosystem, providing an accessible graphical environment for secure email and file protection. It packages the GnuPG engine together with user-friendly tools such as certificate management utilities, Windows Explorer integration, and Outlook plugins, enabling encryption workflows without requiring command-line expertise. The suite supports both OpenPGP and S/MIME standards, allowing organizations and individuals to secure communications using widely recognized cryptographic methods. Users can easily encrypt, decrypt, sign, and verify files or entire folders directly from the Windows interface, making the software suitable for everyday business use. Gpg4win emphasizes strong cryptographic defaults and compatibility with smart cards and enterprise certificate infrastructures. -
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age
A simple, modern and secure encryption tool (and Go library)
age is a security-oriented tool and library by Filo Sottile. age is a simple, modern, secure encryption utility (and Go library) that emphasizes minimal configuration and strong defaults. It provides small explicit keys, no complex options, and is designed for UNIX-style composability; you can pipe into it, integrate it into scripts, etc. It supports a clearly defined format and promotes interoperability across implementations (there are Rust, TypeScript, etc). The project is well-suited for personal data encryption, backup use-cases, scripting encryption workflows, and embedding encryption in tools. Because of its design philosophy, it avoids the bloat of many older encryption utilities while maintaining strong cryptographic hygiene. It’s especially useful for developers or system administrators who want to adopt encryption without learning a multitude of options. -
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GnuPG
Complete and free implementation of the OpenPGP standard
GnuPG (GNU Privacy Guard) is a widely used free software encryption system that implements the OpenPGP standard to provide secure communication and data protection across multiple platforms. It uses a hybrid cryptographic approach combining symmetric encryption for performance with public-key cryptography for secure key exchange and identity verification. The software allows users to encrypt files and messages, create digital signatures, and manage cryptographic keys, making it a foundational tool for privacy-focused workflows. Because it is open source and licensed under the GNU GPL, GnuPG can be freely audited, modified, and redistributed, which has contributed to its adoption in security-sensitive environments. It is primarily command-line driven but can be integrated into email clients, messaging tools, and graphical front-ends for broader usability. -
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FreeOTFE
A free "on-the-fly" transparent disk encryption program for PC & PDAs.
An upstream source site housing the original files for this mirror is no longer available. With this software, you can create one or more "virtual disks" on your PC/PDA. These disks operate exactly like a normal disk, with the exception that anything written to one of them is transparently, and securely, encrypted before being stored on your computer's hard drive. -
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HackBrowserData
Decrypt passwords/cookies/history/bookmarks from the browser
HackBrowserData is an open-source tool that could help you decrypt data ( password|bookmark|cookie|history|credit card|download|localStorage|extension ) from the browser. It supports the most popular browsers on the market and runs on Windows, macOS and Linux. This tool is limited to security research only, and the user assumes all legal and related responsibilities arising from its use! The author assumes no legal responsibility! Installation of HackBrowserData is dead-simple, just download the release for your system and run the binary. -
Enterprise-grade ITSM, for every businessFreshservice is an intuitive, AI-powered platform that helps IT, operations, and business teams deliver exceptional service without the usual complexity. Automate repetitive tasks, resolve issues faster, and provide seamless support across the organization. From managing incidents and assets to driving smarter decisions, Freshservice makes it easy to stay efficient and scale with confidence.
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Microsoft SEAL
Easy-to-use and powerful homomorphic encryption library
Microsoft SEAL is an open-source homomorphic encryption library that allows computations to be performed directly on encrypted data, with no need for any decryption. Developed by the Cryptography and Privacy Research group at Microsoft, it enables software engineers to build end-to-end encrypted data storage and computation services that never have to procure the customer's key. Microsoft SEAL is very easy to use, compile and run in many different environments. Homomorphic encryption is an encryption scheme that allows the cloud to compute directly on the encrypted data, without requiring the data to be decrypted first. This results in encrypted computations remaining encrypted, decrypted only by the data owner using the secret key. -
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SOPS
Simple and flexible tool for managing secrets
sops is an editor of encrypted files that supports YAML, JSON, ENV, INI and BINARY formats and encrypts with AWS KMS, GCP KMS, Azure Key Vault, age, and PGP. For the adventurous, unstable features are available in the develop branch, which you can install from source. To use sops as a library, take a look at the decrypt package. We rewrote Sops in Go to solve a number of deployment issues, but the Python branch still exists under python-sops. We will keep maintaining it for a while, and you can still pip install sops, but we strongly recommend you use the Go version instead. If you're using AWS KMS, create one or multiple master keys in the IAM console and export them, comma separated, in the SOPS_KMS_ARN env variable. It is recommended to use at least two master keys in different regions. If you want to use PGP, export the fingerprints of the public keys, comma separated, in the SOPS_PGP_FP env variable. -
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shadowsocks-libev
Bug-fix-only libev port of shadowsocks
Shadowsocks-libev is a lightweight secured SOCKS5 proxy for embedded devices and low-end boxes. Shadowsocks-libev is written in pure C and depends on libev. It's designed to be a lightweight implementation of shadowsocks protocol, in order to keep the resource usage as low as possible. Snap is the recommended way to install the latest binaries. You can build shadowsocks-libev and all its dependencies by script. The latest shadowsocks-libev has provided a redir mode. You can configure your Linux-based box or router to proxy all TCP traffic transparently, which is handy if you use an OpenWRT-powered router. Although shadowsocks-libev can handle thousands of concurrent connections nicely, we still recommend setting up your server's firewall rules to limit connections from each user. We strongly encourage you to install shadowsocks-libev from jessie-backports-sloppy. -
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dotNet Disk Imager
Lightweight RAW and ZIP disk images reader and writer to USB or SD
IMPORTANT!!! Since this is new software, your web browser, operating system or even possibly antivirus software may report security alerts against this tool. Please ignore that messages until this tool gets widely spread. This program is highly inspired by Win32 Disk Imager and sort of copies it's function. However, I've added some features, like verification of readed/writed image file and the most important is on the fly support for zipped images. Another features worth mentioning are simultaneous write to multiple devices at one time or wiping of device filesystem and partitions. I would be happy to hear your feedback and I'm ready to listen to your suggestions. Feel free to request new features, if I found them interesting I will definitely implement them. Requires .NET Framework 4.6.1 (download here: http://go.microsoft.com/fwlink/?LinkId=671729 ) Supports Windows 7 and newer. If you need older Windows support, use Win32 Disk Imager. Please write a review. -
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Ente
End-to-end encrypted cloud for photos, videos and 2FA secrets
Ente is a fully open-source, end‑to‑end encrypted cloud platform designed for securely storing and managing your photos, videos, and 2FA secrets — without needing to trust the service provider. It includes cross‑platform clients and a CLI for self‑hosting needs. Ente is a service that provides a fully open source, end-to-end encrypted platform for you to store your data in the cloud without needing to trust the service provider. On top of this platform, we have built two apps so far: Ente Photos (an alternative to Apple and Google Photos) and Ente Auth (a 2FA alternative to the deprecated Authy). This monorepo contains all our source code - the client apps (iOS / Android / F-Droid / Web / Linux / macOS / Windows) for both the products (and more planned future ones!), and the server that powers them. -
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usb-guard
Turn any USB flash drive into a master key for your PC
USB Guard is an advanced workstation security solution for Windows that turns USB drives into physical authentication keys using native Windows Kernel APIs. - Zero-Trust Security: Validates unique hardware serial numbers through direct Kernel API calls, ensuring only authorized USB drives can unlock your PC. - Brute-Force Protection: Exponential delay penalties after failed unlock attempts prevent automated attacks. - High-Fidelity Lock Screen: Glassmorphism aesthetics with GPU-accelerated blur effects that blend seamlessly with your desktop wallpaper. - System Integration: Auto-mutes volume when locked, persists via Windows Registry, and covers all connected monitors. - Master Recovery Key: Exportable backup codes ensure you never get permanently locked out. - Lightweight: Runs efficiently using direct native APIs instead of heavy middleware, keeping resource usage minimal. Built with .NET 10, WPF, and Fluent Design. Open source under MIT License. -
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It supports files and folders multi-compression (UPX, ZIP, 7Z) and archives extraction (several formats). It includes an intelligent UPX compression mode, self-extracting archive creation, encryption/decryption, external compressors and much more.
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Keybase client
Keybase Go library, client, service, OS X, iOS, Android, Electron
Keybase is secure messaging and file-sharing. We use public key cryptography to ensure your messages stay private. Even we can’t read your chats. Keybase works for families, roommates, clubs, and groups of friends, too. Keybase connects to public identities, too. You can connect with communities from Twitter, Reddit, and elsewhere. Don’t live dangerously when it comes to documents. Keybase can store your group’s photos, videos, and documents with end-to-end encryption. You can set a timer on your most sensitive messages. This distribution includes cryptographic software. The country in which you currently reside may have restrictions on the import, possession, use, and/or re-export to another country, of encryption software. BEFORE using any encryption software, please check your country's laws, regulations and policies concerning the import, possession, or use, and re-export of encryption software. -
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transfer.sh
Easy and fast file sharing from the command-line
Easy and fast file sharing from the command-line. This code contains the server with everything you need to create your own instance. Transfer.sh currently supports the s3 (Amazon S3), gdrive (Google Drive), storj (Storj) providers, and local file system (local). For easy deployment, we've created a Docker container. For the usage with a AWS S3 Bucket, you just need to specify the following options, provider, aws-access-key, aws-secret-key, bucket, and s3-region. If you specify the s3-region, you don't need to set the endpoint URL since the correct endpoint will used automatically. To use a custom non-AWS S3 provider, you need to specify the endpoint as defined from your cloud provider. In preparation you need to create an access grant (or copy it from the uplink configuration) and a bucket. To get started, login to your account and go to the Access Grant Menu and start the Wizard on the upper right. -
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Mnemonic-Recovery-CUDA
Written in C/CUDA, this tool recovers lost mnemonics and passphrases f
Written in C/CUDA, this tool recovers lost mnemonics and passphrases for BTC, ETH, TRX, DOGE, LTC, DASH, ZEC, BCH, and BTG. Supports BIP32/44/49/84 derivation paths. Features partial phrase recovery and a built-in dictionary for fast, efficient results. Compliant with wallet standards. -
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virgosun teaching support
Mentor, code c, c++, java, go, php, swift, .. DevSecOps virtual lab, .
Menor, code c, c++, java, python, go, php, swift, .., DevSecOps virtual lab, .. This software is provided as a demonstration build. Redistribution of the binary is allowed for academic evaluation only. More previously completed projects will be released incrementally as executable packages are rebuilt for public distribution. www.youtube.com/embed/fzoISpZv5d0?rel=0 -
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A pronounceable password generator plugin for KeePass. NOTE: This project has been discontinued. It hasn't been worth it to maintain the project for a while now, so no more updates will be made to the plugin. The algorithm this plugin uses is based off FIPS-181 which was withdrawn by NIST a while back. The proliferation of password managers that seamlessly run on multiple platforms (some of which are free) has also removed almost all advantages of using randomly generated pronounceable passwords. If you have a use case for this plugin, reconsider it. If you still think using randomly generated pronounceable passwords are worth it for your use case, reconsider it some more.
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cppcrypto
C++ cryptographic library (modern hash functions, ciphers, KDFs)
cppcrypto provides optimized implementations of cryptographic primitives. Hash functions: BLAKE, BLAKE2, Echo, Esch, Groestl, JH, Kupyna, MD5, SHA-1, SHA-2, SHA-3, SHAKE, Skein, SM3, Streebog, Whirlpool. Block ciphers: Anubis, Aria, Camellia, CAST-256, Kalyna, Kuznyechik, Mars, Serpent, Simon, SM4, Speck, Threefish, Twofish, and Rijndael (AES) with all block/key sizes. Stream ciphers: HC-128, HC-256, Salsa20, XSalsa20, ChaCha, XChaCha. Encryption modes: CBC, CTR. AEAD modes: Encrypt-then-MAC (EtM), GCM, OCB, ChaCha-Poly1305, Schwaemm. Streaming AEAD. MAC functions: HMAC, Poly1305. Key derivation functions: PBKDF2, scrypt, Argon2, HKDF. Includes sample command-line tools: - 'digest' - for calculating and verifying file checksum(s) using any of the supported hash algorithms (similar to md5sum or RHash). - 'cryptor' - for file encryption using Serpent-256 algorithm in AEAD mode. Check out the cppcrypto web site linked below for programming documentation. -
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Address_Decode
Decode various cryptocurrency addresses
Address to hash160 is an efficient multi-threaded tool designed to decode various cryptocurrency addresses (such as Bitcoin BTC,Bitcoin Cash BCH, Litecoin LTC, Bitcoin Gold BTG, etc.) to extract hash160 values. It is often used in research such as brainflayer, keyhunt, BitCrack, ecloop, keyhunt cuda, etc. -
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AxCrypt
Simple encryption tool
AxCrypt is a file encryption software that provides a simple, secure way to encrypt sensitive files for personal or business use. It supports 128-bit and 256-bit AES encryption, ensuring robust security for data stored on your computer or in the cloud. AxCrypt is known for its user-friendly interface, allowing users to encrypt, decrypt, and securely share files with others using just a few clicks. The software also integrates with popular cloud storage services like Google Drive and Dropbox, offering seamless protection for files across platforms. Additionally, AxCrypt provides password management, file compression, and secure file deletion features, making it a comprehensive solution for data security.
