Jam web interface for JoinMarket coinjoin
- Regulatory status
- Not a financial service
- Custody
- Self-custody: you hold the keys
- Open source
- Yes
- Website
- https://jamapp.org
- Status
- Active
Swiss angle
Jam does not come from Switzerland, and no company stands behind it. The Jam home page, read on 4 October 2026, says Jam is run by a protocol, not a company, and that no central entity is in charge or profits. The Jam repository is MIT licensed and calls Jam a web interface for JoinMarket NG, which it describes as a separate project. Your coins stay in a wallet on your own node, so Jam is not a financial service.
Jam has no Swiss partner and no franc price. It is a global open source tool, and the Swiss question it raises is tax. Coins that went through a collaborative transaction are still your assets, and you declare them at the ESTV year-end value in the wealth tax section of your return; the Swiss Bitcoin tax guide explains how. Keep your own record of what went in, because a coinjoin makes the history harder to rebuild later, for you as well as for anyone else.
Who it is for
Node runners who want coinjoin without a coordinator. The home page promises no central coordinator and no central point of failure, and the repository lists packages for RaspiBlitz, Umbrel, Citadel, MyNode, Start9 and RaspiBolt. If you already run Umbrel, Start9 or RaspiBlitz, Jam is an app on the box you have.
People who bought coins on an exchange with their name attached and want to break that trail before spending. The privacy chapter explains why that link matters and who can see it.
Holders who would rather be paid for privacy than pay for it. The fees page explains that the side sending a collaborative transaction pays fees to market makers for their liquidity, and that the Earn tab lets you be the maker who collects them. The same page warns that an offer which is not competitive will likely earn nothing.
Who it is not for
Anyone who wants finished software. The repository opens with the warning that Jam is beta software and should be used with caution.
People without a node. Jam sits on a JoinMarket backend on a machine you control. For a desktop wallet with privacy features and no node of your own, compare Wasabi.
Small, frequent payments. The fees page says a collaborative transaction is larger in bytes than a simple spend, so its mining fee is higher, and the maker fees come on top.
Verified facts
| Source | Checked on |
|---|---|
| Jam on GitHub | |
| Jam: a modern interface for JoinMarket |
This directory carries no paid placements and no referral codes. No provider paid to be listed or to be described in a certain way. Each fact was checked against the primary source on the date shown next to it, and facts change after that date. This page is general information, not financial, legal or tax advice.