Open-source alternatives to Android Backup Extractor

crypto-js is a JavaScript cryptography library providing a collection of standard cryptographic algorithms and data transformation tools. It functions as a symmetric encryption toolset, a cryptographic hash implementation, and a password derivation tool for the JavaScript environment. The library enables the protection of sensitive data through symmetric encryption and the production of fixed-size data digests to verify integrity. It includes utilities for converting user passwords into secure cryptographic keys and a data format converter for translating information between Base64, Hex, and

pysheeet is a technical reference library providing a curated collection of code snippets and implementation patterns for advanced Python development, system integration, and high-performance computing. It serves as a comprehensive guide for implementing low-level network programming, native C extensions, and asynchronous and concurrent programming. The project provides specialized frameworks for the development and deployment of large language models, including tools for distributed GPU inference and high-performance serving. It also includes detailed patterns for high-performance computing

Cryptomator is a client-side cloud encryption tool and cross-platform vault manager. It provides a transparent encryption layer that encrypts files and folder structures locally before they are uploaded to a cloud storage provider. The software creates virtual encrypted drives that mount encrypted vaults, allowing users to interact with their data as if it were on a physical disk. It supports the management of multiple independent encrypted containers, each protected by a unique password. The project covers data privacy through directory structure obfuscation and filename encryption to hide

Piknik is an encrypted clipboard relay and multiplexer that coordinates the sharing of text, binary data, and shell content across multiple network hosts. It utilizes a centralized relay architecture to manage secure client connections, providing an end-to-end encrypted system for synchronizing session state and data streams. The project distinguishes itself through the use of multi-stage key derivation and API key access control to secure remote shell access. It employs end-to-end encryption and digital signatures to protect relayed content, ensuring that data is encrypted at the source befo

CryptoSwift is a cryptography library implemented entirely in the Swift programming language. It provides a collection of standard cryptographic algorithms for encryption, decryption, and hashing without relying on native C libraries or system frameworks. The library supports symmetric and asymmetric encryption, including RSA key generation and signature management. It features authenticated encryption schemes and the ability to generate cryptographic digests for data integrity verification. The toolset covers message authentication codes, secure key derivation from passwords, and data paddi

This is a cryptographic implementation of the Argon2 memory-hard function, serving as a password hashing library and key derivation function. It transforms passwords and salts into secure hashes and generates cryptographic keys designed to resist high-speed hardware cracking attacks. The library utilizes a memory-hard design that requires significant RAM to prevent acceleration via GPUs or ASICs. It incorporates data-independent memory access to block side-channel timing attacks and supports the integration of secret keys or peppers to protect against brute-force attacks on compromised salts.

This project is a Python cryptography library that provides a collection of cryptographic primitives and high-level recipes for implementing secure encryption and authentication. It functions as a symmetric encryption toolkit and a cryptographic hash provider, offering both a low-level cryptographic interface for building custom protocols and high-level tools for securing data. The library covers a broad range of security capabilities, including symmetric data encryption, the derivation of cryptographic keys from passwords or secret values, and data integrity verification through the generati

Staticrypt is a tool for securing static HTML files using AES-256 encryption. It provides a command-line interface to encrypt and decrypt web pages, transforming plain HTML into encrypted payloads that are decrypted directly in the browser without the need for a backend server or database. The project distinguishes itself through access management features such as auto-decrypting links, which use hashed passwords in URL fragments to unlock files for specific recipients. It also supports browser session persistence, storing hashed passwords in local storage to prevent repeated authentication.

SQLCipher is an encrypted SQLite database engine and secure relational database that provides transparent AES-256 encryption for database files and stored data. It functions as a cryptographic storage engine that requires a passphrase or binary key to unlock and access content. The engine ensures data confidentiality through page-level encryption and protects data integrity using cryptographic hashes to detect unauthorized modifications. It includes capabilities for encryption key rotation to update passphrases and secure memory locking to prevent sensitive keys from being swapped from RAM to

WechatBakTool is a Windows-based desktop application designed to decrypt and export local WeChat PC chat databases. It functions as a chat history backup tool that enables the preservation of conversation records by transforming encrypted messaging databases into readable archival formats. The software utilizes a graphical interface to manage the decryption of SQLite databases and the derivation of symmetric keys. This process allows users to remove encryption from local messaging files to make chat logs accessible outside of the official application. The tool provides capabilities for local

Tutanota is an end-to-end encrypted email client and privacy-focused mail server. It functions as a cross-platform secure messaging application that provides encrypted email and calendar synchronization across desktop and mobile devices. The system ensures that only the sender and recipient can read messages by implementing a zero-knowledge architecture, where the service provider cannot access user private keys or cleartext data. This is achieved through client-side encryption and the use of asymmetric key exchange to share encrypted messages without prior secret key exchange. The platform

VeraCrypt is a cross-platform disk encryption utility used to create encrypted file containers and secure entire disk partitions. It functions as a tool for full disk encryption and a manager for encrypted volumes, providing a means to protect sensitive data on local disks and removable media across multiple operating systems. The software is distinguished by its support for plausible deniability, allowing the creation of hidden volumes nested within other encrypted volumes to conceal the existence of data. It also implements hardware-based access control, requiring physical security tokens,

YDB is a distributed SQL database and analytical engine designed for horizontal scalability and strong consistency. It functions as a multi-model system that supports transactional and analytical workloads through a distributed architecture providing serializable ACID transactions. The system is distinguished by its broad protocol compatibility, implementing the PostgreSQL wire protocol for standard SQL drivers and the Kafka protocol for messaging and streaming. It further serves as a vector database, supporting vector indexes and approximate nearest neighbor searches for semantic search and

Archiver is a multi-format archive library and command-line tool for creating, extracting, and managing compressed archives. It provides a unified interface for working with formats including gzip, bzip2, zip, tar, rar, 7zip, and zstandard, and can automatically detect archive formats by inspecting binary byte headers rather than relying solely on file extensions. The library uses interface-based abstractions and a multi-format codec registry to support format-agnostic operations, while its stream-based compression pipeline processes archive data continuously without loading entire archives i

This project is an educational textbook and technical handbook focused on the practical implementation of cryptographic algorithms for software development. It serves as a comprehensive resource for engineers seeking to apply mathematical primitives to secure data storage and network communications. The material covers the application of symmetric and asymmetric ciphers, digital signature verification, and key derivation functions. It details the construction of secure protocols by combining fundamental building blocks such as hashes and message authentication codes to ensure data privacy, in

This project is a mnemonic seed generator and deterministic wallet deriver. It converts mnemonic phrases into binary seeds and derives cryptocurrency wallet addresses and private keys. The tool is implemented as a browser-based cryptographic utility designed for offline execution. This ensures that all key generation and seed computation occur locally on the machine to prevent private keys from leaving the local environment. The system covers mnemonic phrase generation from entropy, seed computation using password-based derivation, and the derivation of public addresses for multiple cryptocu

SharpZipLib is a .NET compression library and file archiver used to create, extract, and manage Zip, GZip, Tar, and BZip2 archives. It provides a framework for compressing and decompressing data streams and files within the .NET ecosystem. The library distinguishes itself through support for archives that exceed the standard four gigabyte size limit. It also includes capabilities for decrypting password-protected files using industry-standard encryption and managing Tar archives with long filename support. The project covers a broad range of archive management operations, including integrity

Forge is a JavaScript cryptography library providing a comprehensive set of tools for symmetric and asymmetric encryption, hashing, and digital signatures. It includes a full Transport Layer Security implementation for establishing secure network connections and managing encrypted traffic. The project implements a wide array of public key infrastructure tools, including X.509 certificate management, the generation of certificate signing requests, and the validation of certificate chains. It provides a PKCS cryptographic toolkit for handling secure archives and signed messages, alongside suppo

GmSSL is an open-source cryptographic library that implements the Chinese national cryptographic standards SM2, SM3, SM4, SM9, and ZUC as a unified algorithm suite. It provides a comprehensive set of cryptographic primitives including symmetric and asymmetric encryption, digital signatures, hashing, and key exchange, all built around these national standards for government and enterprise security applications. The library distinguishes itself through several integration capabilities. It includes an OpenSSL compatibility layer that maps GmSSL functions to OpenSSL API calls, enabling drop-in re

UniExtract2 is a suite of tools designed for universal archive extraction, batch decompression, and file format analysis. It retrieves files from various compressed formats, software installers, disk images, and game archives into local directories. The project includes a file format analyzer that identifies file types by scanning internal contents and headers without requiring full extraction. It also features an archive password decrypter that attempts to recover access to protected archives using a predefined list of common passwords. The tool supports bulk decompression workflows through

This project is a command-line tool for managing public key infrastructure and digital identities. It provides a comprehensive suite for X.509 certificate lifecycle management, including the generation, signing, renewal, and revocation of certificates and signing requests. The tool distinguishes itself through specialized security capabilities such as binding cryptographic credentials to TPMs and HSMs for hardware-backed identity attestation. It also provides dedicated support for machine identity security, using short-lived SSH certificates and mTLS to secure non-human workloads. Broad capa

Duplicati is a self-hosted backup server designed to perform encrypted, incremental, and compressed backups to a wide range of local, network, and cloud-based storage providers. It functions as a background service that automates recurring data protection tasks, ensuring that only changed data blocks are stored to maximize efficiency and minimize bandwidth usage. The project distinguishes itself through a centralized management console that allows for the orchestration of multiple distributed backup agents from a single web-based dashboard. It supports multi-tenant management, enabling the or

zip.js is a JavaScript library designed for creating, reading, and extracting ZIP archives directly within a web browser. It provides a comprehensive toolkit for managing compressed files and encrypted data storage entirely on the client side, eliminating the need for server-side backends or external dependencies. The library distinguishes itself by utilizing the Web Streams API and multi-core processing to handle large datasets efficiently. By offloading heavy compression and decompression tasks to background worker threads, it ensures that the browser interface remains responsive during int

7-Zip is a data compression tool and file archiver designed for creating and extracting archives. It functions as a utility for reducing the storage requirements of files and folders through high-ratio lossless compression and managing the 7z open-standard format. The software provides capabilities for cross-platform archive management, allowing users to open and create various archive formats across different operating systems. It supports data backup and recovery, as well as the packaging of multiple files into single archives for distribution. The project implements a variety of compressi

python-docx is an OOXML document manipulation library used for creating, reading, and updating Microsoft Word files. It functions as a generator for building formatted documents and a parser for extracting text, metadata, and structural elements from existing files. The project provides a comprehensive style management system for defining and applying character, paragraph, and table styles within OpenXML documents. It allows for the programmatic control of document appearance through an object-oriented approach to the underlying XML schema. Capabilities cover a wide range of document generat

ZipArchive is a Swift library and file utility designed for compressing and extracting files into zip archives on iOS, macOS, and tvOS. It serves as a programmatic wrapper for managing file system operations and archive creation on Apple platforms. The library supports the creation of password-protected archives using symmetric-key encryption to secure data during storage or transfer. It allows for the control of compression levels and supports the handling of large file sizes. The toolset covers core archive capabilities including the creation of compressed files from data buffers and the e