PayJoin adoption

PayJoin is a privacy improvement for bitcoin. Payjoin solves the sole privacy problem left open in the Bitcoin whitepaper, that transactions with multiple inputs "necessarily reveal that their inputs were owned by the same owner," because both the sender and receiver of a transfer contribute inputs to the transaction.

Transaction surveillance companies heavily depend on the common input ownership assumption which is broken by PayJoin transactions. So if those transactions became even a little bit widespread they could massively decrease the reliability of blockchain surveillance. Those who adopt PayJoin would find their privacy improved from strangers analyzing the blockchain. For example a surveillance company spy would find it much harder to figure out which addresses and transactions belonged to a particular merchant that was using PayJoin, or who else transacted to them.

PayJoin transactions can be made indistinguishable from regular bitcoin transactions by design, so it's very hard to get an accurate number for how common they are.

The most widely adopted PayJoin protocol standard is BIP 0078.

No
Evaluating
Planned	The developers said they plan to
Non-BIP78	Implements a form of PayJoin but not BIP78
Extension	Can PayJoin using additional software
Yes	Feature has been released

Software Wallets

Name	Sending	Receiving	Notes
BTCPay Server	Yes	Yes	https://docs.btcpayserver.org/Payjoin/
JoinMarket	Yes	Yes	https://github.com/JoinMarket-Org/joinmarket-clientserver/blob/master/docs/PAYJOIN.md
JAM	Planned	Planned	roadmap issue
BitMask	Yes	No	Chrome extension only https://github.com/diba-io/bitmask-core/pull/121
Wasabi Wallet	Yes	Evaluating	https://docs.wasabiwallet.io/using-wasabi/PayJoin.html receiver draft
BlueWallet	Yes	Planned	https://old.reddit.com/r/Bitcoin/comments/j6qswf/bluewallet_releases_payjoin_bip78/
Sparrow Wallet	Yes	Non-BIP78	https://github.com/sparrowwallet/sparrow/releases/tag/0.9.7, https://github.com/sparrowwallet/sparrow/releases/tag/1.5.3
Samourai Wallet	Non-BIP78	Non-BIP78	https://samouraiwallet.com/stowaway
Bitcoin Core	Extension	Extension	Beta CLI payjoin-client via RPC, native support under evaluation
Bitcoin Knots	Extension	Extension	Beta CLI payjoin-client via RPC
Electrum	Planned	Planned	https://github.com/spesmilo/electrum/issues/6585
BDK-CLI	Planned	Evaluating	https://github.com/bitcoindevkit/bdk-cli/issues/149
LND	Extension	Extension	nolooking web app alpha
ACINQ	No	Evaluating	https://github.com/ACINQ/phoenix/issues/161
Blixt Wallet	Evaluating	Evaluating	https://t.me/blixtwallet/122197
Nunchuk	Evaluating	Evaluating	https://stacker.news/items/129571
Envoy	Evaluating	No	https://github.com/Foundation-Devices/envoy/pull/84
Stack Wallet	Evaluating	Evaluating	https://github.com/cypherstack/stack_wallet/issues/445
Mutiny Wallet	Evaluating	Evaluating	https://github.com/MutinyWallet/mutiny-node/issues/194
Fully Noded	Evaluating	Evaluating	https://github.com/Fonta1n3/FullyNoded/issues/126
Brainbow	Evaluating	Evaluating	https://github.com/Bitcoin-Brainbow/Brainbow/issues/98
Vortex	Evaluating	Evaluating	https://github.com/ln-vortex/ln-vortex/issues/407
Specter Desktop	Evaluating	Evaluating	https://github.com/cryptoadvance/specter-desktop/issues/1369
bcoin	No	No
Armory	No	No
Blockstream Green	No	No
Breadwallet	No	No
Coinomi	No	No
BTC.com	No	No
Casa	No	No
Mycelium	No	No
Bitcoin Wallet for Android	No	No
Trust Wallet	No	No
Guarda Wallet	No	No
Zeus	Planned	Planned	on feature roadmap

Hardware Wallets

Name	Signing	Notes
Coldcard	Yes	Hardware can sign bip78 payjoins and also http://ckbunker.com/

Payment processors

Name	Receive	Notes
BTCPay	Yes	First implementer of BIP78 payjoin for merchants.
SatSale	Evaluating	https://github.com/SatSale/SatSale/issues/39

Exchanges

P2P exchanges make the most sense as early adoptors of PayJoin. All exchanges are welcome on this list of course.

Name	Send to exchange	Receive from exchange	Notes
AgoraDesk	No	No
Bisq	No	No
Bull Bitcoin	Planned	Planned	https://twitter.com/francispouliot_/status/1138131827258986499
Hodl Hodl	Planned	Planned	https://twitter.com/hodlhodl/status/1352266122389827584
LocalBitcoins	No	No
LocalCoinSwap	No	No
LocalCryptos	No	No
Paxful.com	No	No
Sideshift.ai	Yes	No	For "To send" choose "Bitcoin PayJoin"

Non-profits

Name	Receive	URL	Notes
payjoin.org	Yes	https://payjoin.org/
Human Rights Foundation	Yes	https://hrf.org/donate-bitcoin/payjoin/
Waxwing's personal donation page	Yes	https://joinmarket.me/donations/
Max Hillebrand's donation page	Yes	https://towardsliberty.com/btcpay/apps/27jLc1qpN8UXcQanHgeAsaEgLAio/pos

Casinos

Bitcoin casinos are very natural early-adopters of PayJoin. An early protocol specification for it, called bustapay, was created by the owner of a bitcoin casino.

Name	Send to	Receive	Notes
Bustabit	No	No

Stores

Name	Receive	Notes
The Kratom Syndicate	Yes	https://thekratomsyndicate.com/blog/buying-kratom-with-payjoin.html
Ideas Like Flames	Yes	https://twitter.com/ideaslikeflames/status/1389746824009949191