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Knit vs Briar
Two free, open-source ways to message without servers — built on different ideas about who you're talking to.
Last reviewed: August 2026
Knit and Briar both support messaging with no internet required. Knit connects the people around you through a mesh of nearby phones. Briar focuses on conversations between contacts you have deliberately added.
Knit makes it easy to start chatting in a crowd and continue existing conversations through optional Internet relays later. Briar offers Tor connections for contacts communicating over the internet. This page compares the setup, features and privacy choices.
| Feature | Knit | Briar |
|---|---|---|
| Works with no internet | Yes | Yes |
| Multi-hop mesh — messages relay phone to phone beyond your own radio | Yes | No |
| Store & forward through other phones | Yes | No |
| Open Nearby room — talk to people you haven't met1 | Yes | No |
| No account, no password | Yes | No |
| End-to-end encrypted direct & group chats | Yes | Yes |
| Forward secrecy2 | Yes | Yes |
| Photos, GIFs, voice notes & reactions | Yes | Images only |
| On-device AI moderation | Yes | No |
| Works over the internet3 | Yes, via optional relays | Yes, via Tor |
| Desktop app | No | Yes |
| Free, no ads, open source (GPLv3) | Yes | Yes |
- 1The Nearby room is an open broadcast, plaintext by design — like talking out loud in a crowd. Direct and group chats are the sealed part.
- 2Knit rotates keys per block of messages, not per message, and a chat with someone on an older Knit build falls back to the previous static-key scheme, which has none. Spent keys are deleted, so mesh traffic recorded today can't be decrypted later.
- 3Knit's Internet relays are opt-in and carry only existing direct and group conversations, as sealed frames the relay can't read. No accounts, no discovery, and you can run your own. They don't hide who talks to whom; Briar's Tor does. The Nearby room stays radio-only.
Where Knit wins: the crowd in front of you
Every nearby Knit phone can help carry a message toward your friend. That gives a festival, venue or neighbourhood more possible routes as people join. Messages can wait in the mesh while a new path appears. Your mesh, behind the nearby count, shows what your own phone has done for others: what it passed along, what it is carrying now and how many people it has met. Every number is counted on the phone and stays there.
Install Knit and discover nearby people without creating an account. Share photos and voice notes in direct and group chats, reply inline, bring someone into a conversation with an @-mention, and send where you are from a chat's menu. Search finds any chat, contact or message by what it said, with no signal needed. A file too big to attach goes to a nearby contact straight over Wi-Fi, phone to phone. The public Nearby room is an open broadcast with on-device text and image moderation.
Start with a quick hello at camp or a group thread for the weekend. Optional Internet relays can keep that existing conversation going after people head home, with no account needed and sealed messages the relay cannot read. One person can share a relay as a link; tapping it adds the relay once you have read what it will see.
Where Briar wins: the people you already trust
Briar suits people who want to add contacts deliberately and connect over Tor when online. Knit also supports adding contacts from shared links, then carrying existing conversations through optional Internet relays. The relay approach exposes connection metadata; choose based on how you want to connect and what you need to protect.
Briar's contact setup makes each relationship explicit. Knit offers another way to start: discover nearby people, join the public room and let other phones carry messages beyond your own radio range.
Security, side by side
Both apps are open source under the GPLv3 and end-to-end encrypt private conversations — in Knit that's direct and group chats, sealed down to the mentions and image attachments and verifiable in person with a safety number or QR code. The deliberate exception is Knit's public Nearby room: an open broadcast, like talking out loud in a crowd, and Knit never pretends otherwise.
Each rotates keys so traffic recorded today can't be decrypted later — in Knit per block of messages rather than per message, and a chat with someone on an older Knit build falls back to the old static-key scheme until they update. Knit's messages are also encrypted at rest under a hardware-backed key that never leaves the phone and stays out of cloud backups, so reading them takes unlocking the device, not stealing it.
On metadata, score it by where you are. Over the internet Briar's Tor hides who talks to whom; Knit's optional relays don't try — a relay holds sealed frames it can't read, but it can see traffic arrive and from where. Over the radio both are visible to anyone nearby, but the patterns differ: an observed Briar link points at a specific pair who know each other, while a Knit phone spends most of its airtime relaying other people's sealed messages — seeing it transmit tells you it's part of the mesh, not that its owner said anything.
The browser demo shows the hop-by-hop idea without installing anything: knock out a cell tower, then walk a message across a crowd.
Choose Briar if…
- You want to reach people at a distance with nothing to set up — Briar carries a contact over Tor on its own, where Knit's Internet path is a relay you opt into first.
- Metadata matters as much as content — Tor hiding who talks to whom is the feature.
- You want vetted contacts only, with a desktop app alongside.
Choose Knit if…
- The people you need to reach are around you — and not all of them are in your contacts.
- You need messages to cross a crowd, hopping phone to phone past your own radio range.
- It has to work for everyone instantly: no account, no password, no adding contacts first.
- You want a familiar chat app — reactions, GIFs, groups, search — that happens to need no network.
Common questions
Can Knit and Briar talk to each other?
No. They speak different protocols, so a Knit phone and a Briar phone can't exchange messages — each app only meshes, or syncs, with itself. That's true across this whole category of apps, not a quirk of these two.
Which one is more private?
It depends on what you're protecting. Over the internet Briar has the stronger story: its traffic rides Tor, which hides who talks to whom, while Knit's optional relays move sealed frames a relay can't read but make no attempt to hide the traffic itself. Over the radio both are visible to anyone nearby, Briar as a direct link between two contacts' devices, Knit as mesh chatter in which a relaying phone and a talking one look the same from outside. Private conversations are end-to-end encrypted in both; for Knit that means direct and group chats, while the public Nearby room is an open broadcast anyone in range can read. And both rotate keys so recorded traffic can't be decrypted later, though Knit rotates per block of messages, and a chat with someone on an older Knit build falls back to a static-key scheme without that protection.
Can I run both?
Yes. Nothing stops you keeping Briar for a trusted circle and Knit for whoever's nearby — the two cover different ground, and they don't interfere with each other.
Does Briar mesh through strangers like Knit does?
No, and on purpose. Briar moves data only between devices that have added each other, so offline it reaches one radio hop to a contact. Knit's whole bet is the opposite: strangers' phones relay your sealed messages onward, which is what lets one cross a crowd.
Which one should I bring to a festival or a march?
For a small group that can meet beforehand and add each other, Briar's vetted contacts work well — and it keeps working afterwards over the internet. For finding people in a big crowd, reaching beyond your own range, or talking to whoever's around, the mesh is the point of Knit — and with its Internet relays on, the group thread you started in the field keeps going afterwards. There's no rule against carrying both.
We checked the Briar facts on this page against the Briar Project's own documentation; the date above says when. Briar is an independent project, not affiliated with Knit, and briarproject.org has the latest on their side. Spotted something wrong or out of date? Tell us and we’ll fix it.
Product names on these pages are the trademarks of their respective owners and are used only to identify the apps being compared. None of those projects is affiliated with, or has endorsed, Knit.
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