Open source

Open-source desktop application for peer-to-peer trading of bitcoin against fiat. Trades settle in 2-of-2 multisig and the network runs over Tor; no account or registration.

Peer-to-peer marketplace for buying and selling bitcoin over the Lightning Network. Users are identified by a generated robot avatar and token; no email or KYC.

Open-source desktop Monero wallet with built-in BTC → XMR atomic swaps (formerly UnstoppableSwap). Swaps are enforced by the protocol, so there is no account and nothing for a company to freeze. Runs everything over Tor; Windows, macOS and Linux.

The official open-source Monero wallet software. Self-custodial keys, optional Tor routing, and no account or identity of any kind.

Desktop Bitcoin wallet aimed at privacy and self-custody, with coin control, CoinJoin support and the option to connect to your own node over Tor.

Decentralized peer-to-peer exchange for trading Monero against fiat and other assets, with no central operator and trades secured in multisig. A Monero-focused successor in spirit to Bisq.

Non-custodial swap service for atomic swaps between Bitcoin, Lightning and Liquid, with no account and no identity. Open-source and integrable into wallets.

Open-source Bitcoin desktop wallet focused on privacy, with built-in CoinJoin, coin control and Tor by default. Non-custodial and identity-free.

Free, self-hosted, open-source payment processor that lets merchants accept Bitcoin and Lightning directly with no middleman, no fees and no KYC.

Open-source mobile Bitcoin and Lightning wallet that can connect to your own node, keeping you in full self-custody with no account.

Open-source Android wallet built exclusively for Monero, supporting custom nodes, a Street Mode to hide balances, and offline key storage via Sidekick.

Open-source messenger with no user identifiers at all — no phone number, email or account. Metadata-minimising by design and self-hostable.

Peer-to-peer encrypted messenger that syncs over Tor or directly over Wi-Fi/Bluetooth, with no servers and no account.

Open-source non-custodial Bitcoin, Lightning and Liquid wallet with optional multisig. No account or identity is required to use it.

Bitcoin wallet focused on multisig and collaborative custody with no KYC. Connects to your own node and hardware wallets.

Open-source Bitcoin desktop wallet built around your own full node and hardware wallets, with strong multisig support and no account.

The reference Bitcoin full-node software, including a self-custodial wallet. Running your own node means trusting no third party and revealing nothing.

Open-source hardware wallet for Bitcoin and Liquid that can run fully air-gapped and pairs with open-source companion apps. No account needed.

Amnesic live operating system that routes all traffic through Tor and leaves no trace on the computer. Free, open source, no account.

Security-focused operating system that forces all connections through Tor using an isolated gateway. Free and open source.

The official browser for accessing the Tor network and .onion sites, with anti-fingerprinting built in. Free, open source, no account.

Free, open-source app that routes your phone's traffic through Tor, acting as a system-wide Tor VPN. No account required.

Offline, open-source password manager that stores your vault locally in an encrypted file. No account, no cloud, no telemetry.

End-to-end encrypted collaborative documents and drive. You can use it without an account, and it is open source and self-hostable.

Minimalist open-source pastebin where the server has zero knowledge of the data — text is encrypted in the browser. No account.

Open-source Bitcoin blockchain and mempool explorer you can self-host or reach over Tor. No account, and self-hosting avoids leaking which addresses you look up.

Open-source metasearch engine that aggregates results without profiling you. Use a public instance or self-host; no account.

Open-source disk-encryption software for creating encrypted volumes and full-disk encryption, with support for hidden volumes. Offline, no account.

Metadata-resistant, peer-to-peer messenger built on Tor onion services. No servers, no phone number, no account.

Cross-chain decentralized exchange using atomic swaps and Particl's network for peer-to-peer trades with no third party and no registration.

A decentralized mixnet combined with a dVPN that shields traffic metadata across an incentivised relay network. Anonymous signup.

Peer-to-peer bitcoin trading app built around your phone contacts so trades happen with people in your social graph. No KYC and open source.

Lightweight open-source Monero desktop wallet with built-in Tor support and no account system. Keys stay on your device.

Open-source mobile and desktop wallet for Monero and Bitcoin with self-custodied keys and a built-in exchange. No account or identity required to use the wallet.

Long-standing open-source Bitcoin wallet. Self-custodial, supports hardware wallets and connecting through Tor or your own server; no account.

Open-source software that creates a marketplace for CoinJoin, letting Bitcoin users improve privacy while earning or paying a fee. Self-hosted, no accounts.

Non-custodial Lightning wallet and SDK for everyday bitcoin payments. Keys stay on the device and there is no signup or identity step.

Non-custodial Bitcoin, Lightning and Liquid wallet from JAN3 with stablecoin support and a reusable @aqua.net Lightning address. No account; you hold the keys.

Open-source Bitcoin and Lightning wallet for mobile and desktop. On-chain wallets are fully self-custodial with no account required.

Open-source non-custodial multi-coin wallet with first-class Monero support, letting you hold XMR alongside other assets without an account.

Open-source hardware wallet that keeps your private keys offline. Using the device requires no account or identity; only the original purchase may be tied to you.

Swiss open-source hardware wallet with a companion app. Keys stay on the device; no account or verification is needed to use it.

Open-source private messenger that uses an onion-routing network and a random account ID instead of a phone number or email.

Donation-funded platform offering email, cloud storage and collaboration tools with no personal information required at signup. Runs on free software.

Open-source client for the decentralized Matrix network. Many homeservers allow registration without a phone number or email, and you can self-host.

Open-source messenger and crypto wallet that uses a generated key pair instead of a phone number or email. Peer-to-peer and self-custodial.

Open-source client-side encryption for files you store in any cloud, so the provider only ever sees ciphertext. No account with Cryptomator itself.

A Tor pluggable transport that helps people bypass censorship. Volunteers can run it in a browser; users get to Tor where it is blocked. No account.

Open-source, non-custodial multi-currency mobile wallet with client-side encryption. No identity is required to create or use a wallet.

Open-source, non-custodial multichain wallet with built-in privacy features and no account or identity requirement.

Open-source Bitcoin wallet with miniscript-based inheritance and recovery paths. Fully self-custodial, no account needed.

Open-source mobile Bitcoin wallet by Foundation with privacy-first defaults, Tor and account-free usage.

Long-running open-source, non-custodial Bitcoin mobile wallet. No account or identity is required.

Open-source, self-custodial Zcash wallet, shielded by default. Renamed from Zashi in 2026 when its team left Electric Coin Company; same app and recovery phrase. No registration needed.

Open-source, air-gapped DIY Bitcoin signing device you build from off-the-shelf parts. Bought as components, with no account or identity.

Free, open-source Lightning wallet and accounts system you can self-host to run your own no-KYC payment stack.

Lightweight Monero wallet for web and desktop with a simple setup and no account beyond your wallet keys. Convenient, though a remote server assists with scanning.

Open-source hardware and software wallet ecosystem. Devices are self-custodial and require no identity to use.

Open-source anonymous email forwarding (formerly AnonAddy). Generate unlimited aliases that forward to your real inbox; self-hosting supported.

End-to-end encrypted notes app, open source and self-hostable. A free account needs only an email, and paid plans can be bought with crypto.

The SPN (Safing Privacy Network) is a multi-hop network that gives each app a different exit, with anonymous payment options.

End-to-end encrypted messenger that works without a phone number or email; each user gets a random Threema ID.

Encrypted email provider with a free tier. Signup needs no personal documents, though new free accounts may face a manual approval delay to deter abuse.

Open-source email aliasing that hides your real address behind disposable ones. Account creation needs only an email; self-hosting is also possible.

Free web and mobile Lightning/Bitcoin wallet and payment page. Can be used with just a username, no identity verification.