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quipqiup is an automated cryptogram solver by Edwin Olson. It solves simple substitution ciphers such as cryptoquips, where word boundaries are preserved, and patristocrats. Different solving modes can be selected from a menu next to the solve button.
restic is a backup program that backs up files from Linux, BSD, Mac and Windows to self-hosted and online storage. It is a single executable that runs without a server or complex setup, transfers only changed parts of files, uses cryptography throughout, and is free and open source.
Scuttlebutt is a decentralised social network described in its documentation as a secure gossip platform. The site collects video talks and presentations covering the protocol, network, applications, community and culture, including topics such as offline workability, cryptographic authenticity and data ownership.
Sherlock is a web3 security platform that combines private audits, audit contests, AI-assisted analysis and bug bounties. It describes an audit engine that coordinates AI security approaches into one validated result, and collaborative audits staffed by security researchers. The site states it has conducted over 1,000 audits and reports more than 11,000 security researchers.
Softstack is a Germany-based Web3 service partner offering smart contract audits, software development and consulting. Its services include smart contract auditing, penetration testing, dApp development and Web3 regulations consulting. The company presents itself as a service partner for software development, cybersecurity and consulting in Web3.
StarkWare develops STARK proof technology and core technology for the Starknet blockchain. The company states it was founded by co-inventors of STARKs. Its work covers scaling, privacy and quantum-resistant proofs, and the Cairo language for STARK-provable programs and Starknet smart contracts. STRK20 provides shielded balances and private transfers on Starknet.
Storm Trade is a decentralized exchange and perpetual futures trading bot on the TON blockchain. It supports trading crypto, stocks, forex and commodities with leverage through a Telegram Web App or web app, and allows GRAM to be used as collateral. The project also describes staking stablecoins and staking $STORM for protocol revenue share, voting and fee discounts.
Syncthing is a continuous file synchronization program that synchronizes files between two or more computers in real time. Communication is secured using TLS with perfect forward secrecy, and each device is identified by a cryptographic certificate. The protocol is documented and the source code is available on GitHub. It runs on macOS, Windows, Linux, FreeBSD, Solaris, OpenBSD and other systems, and is configured through a browser interface.
Valuta EX is a currency converter providing exchange rates for over 160 world currencies, plus cryptocurrencies. Rates are mid-market rates drawn from live market data and refreshed hourly. Conversion pages compare typical dealer margins of 0–5% charged by banks, ATMs, credit cards and exchange kiosks. It is developed by inkOfPixel Srl, a software company based in Milan, Italy.
WebWormhole creates ephemeral pipes between computers to send files or other data, using WebRTC for connections with a model similar to Magic Wormhole. It can be used in browsers or on the command line, where a one-time code establishes the connection. The project states it is still in early development and has not had security or cryptography review.
