Buy and sell bitcoin for fiat (or other cryptocurrencies) privately and securely using Bisq's peer-to-peer network and open-source desktop software. No registration required. Bisq is a peer-to-peer trading network, not a website or "app" or other centralized service. It's software you run on your own hardware, which connects to other people running the Bisq software to facilitate trades. It's open-source and community-driven.

Bisq penalizes sellers that ask for any additional information.
Quick Info
Bitcoin is available
Monero is available
Cash accepted
You can swap coins
No accounts
The wallet is not custodial
The source code is public
No JavaScript
Tor available
KYC Level: 0
No KYC. The item ToS do not mention that it will ever request the user for a KYC verification.