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A shell history tool that syncs, searches and backs up shell history with end-to-end encryption, available for macOS, Linux and Windows and for shells including bash, zsh and fish. It includes Atuin AI, which is free during testing and can suggest and run commands.
Awesome Storage is a curated list of open source storage tools covering backups, redundancy, sharing, distribution and encryption. It lists distributed file systems such as Ceph, Gluster, BeeGFS and JuiceFS, describing each system's storage capabilities.
Berty is a nonprofit project building a privacy-first peer-to-peer messenger on the Wesh network. Conversations use end-to-end encryption in a distributed network, with messaging over Bluetooth Low Energy that needs no network connection. Data is stored only on the device, and the software is described as forthcoming and open source.
Bitmask is a free, open-source VPN app from LEAP Encryption Access Project that connects to vetted providers. It includes built-in tools to evade censorship, and the system behind it is self-hostable, allowing individuals or collectives to run private, circumvention-focused VPNs. The app is described as having no accounts, no logs and no tracking.
) - an Android based remote NostrConnect signer and web project using QR codes and Nip44 encryption by default
) - A Bitcoin wallet implementing MPC TSS over Nostr for decentralized device pairing and transaction signing. Connect devices from anywhere via Nostr relays with NIP-44 encryption
BorgBackup is an open-source deduplicating archiver that provides compression and authenticated encryption for stored data. The project is hosted on GitHub, with the public repository tracking development of the BorgBackup tool.
BorgBackup (Borg) is a free, open-source, BSD-licensed deduplicating backup program. It includes compression and authenticated encryption features. It stores files as content-defined chunks to enable space-efficient storage, supports mountable archives, and runs across multiple operating systems.
Comfy.Guide is a collection of computer guides. Its server software section covers self-hosting services such as email, DNS, IRC, Matrix, XMPP and PeerTube. Its client software section covers desktop tasks, including disk encryption, GnuPG, the KISS Linux distribution and using NVIDIA on Linux.
ContextVM is a transport layer for MCP servers over the Nostr network. It uses public keys and relays instead of domains, OAuth or port forwarding, with end-to-end encryption and optional Lightning payments, and works with any MCP server through an official SDK or a gateway/proxy.
Conversations is an open source XMPP/Jabber client for Android. It offers end-to-end encryption with OMEMO or OpenPGP, file and image sharing, encrypted audio and video calls, private group chats and public conferences, multiple accounts and location sharing, with a Material Design 3 interface. Some features require server support.
ConvertFiles is an online file converter supporting over 300 formats of documents, images, presentations, archives, audio and video files. Users upload files, select an output format and quality, then download the result or receive it by email. Files are handled with SSL encryption and deleted from the server after 4 hours for non-signed-in users.
croc is a command-line tool for transferring files and folders between two computers. It uses peer-to-peer transfer with relay fallback and end-to-end encryption using PAKE. It supports cross-platform transfers on Windows, Linux, Mac and browser, multiple file transfers, and resuming interrupted transfers, without a local server or port-forwarding.
Crosspaste Desktop is an open source cross-device clipboard synchronization tool hosted on GitHub by the CrossPaste team. It supports macOS, Windows and Linux, operates exclusively over local area networks with end-to-end encryption and no cloud dependency, and includes built-in optical character recognition, command line interface and MCP server functionality.
cryptgeon helps share or store files with encryption, access control, or privacy-focused transfer features.
cryptii is a web app that offers modular conversion, encoding and encryption online. Translations are performed in the browser without server interaction, and it is an open source project with code licensed MIT.
Cryptomator is an open-source encryption tool for cloud storage. It encrypts files on the user's device before they are stored in services such as Dropbox, Google Drive and OneDrive, and makes them available through a virtual drive. It is available for Windows, macOS, Linux, Android and iOS.
A web app for performing cyber operations in a web browser, including XOR and Base64 encoding, AES, DES and Blowfish encryption, hexdumps, compression, hashing and parsing. It is intended for technical and non-technical analysts manipulating data.
CyberChef is a web application for encryption, encoding, compression and data analysis. It provides hundreds of operations that can be combined into recipes, and input files can be dragged onto the input box, with files up to around 2GB supported depending on the browser. It is released under the Apache Licence, Version 2.0.
Cyberduck is a libre server and cloud storage browser for Mac and Windows. It connects to servers, enterprise file sharing and cloud storage, with support for protocols including FTP, SFTP, WebDAV, SMB, OpenStack Swift, Google Cloud Storage, S3 and Azure. Optional client-side encryption with Cryptomator is offered, and no registration or account is required.
Devina.io is an online development toolkit offering advanced tools for developers, designers and content editors. It lists 78 tools grouped into categories such as general, data, media, networking and website utilities, including a text diff viewer, JSON viewer and PDF transformer. The PDF transformer is a QPDF GUI for content-preserving transformations including linearization and encryption.
Cross-platform client that tunnels traffic through DNS using two protocols: DNSTT, which encodes data in DNS TXT queries with KCP and Noise encryption, and Slipstream, a QUIC-over-DNS tunnel. On Android it creates a system-wide VPN; on desktop it runs a local SOCKS5 proxy on 127.0.0.1:7000.
Dpdf is a free online PDF tool site offering merging, splitting, converting and compressing PDFs, plus related tools such as watermarking, encryption, OCR and page organisation. The site states that use is unlimited and no registration is required, and that regular file processing does not use credits; credits apply only to OCR and AI Deep Watermark Removal.
EasyTransfer helps share or store files with encryption, access control, or privacy-focused transfer features.
