r/i2p • • Apr 20 '26

I2P 2.12.0 Released

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37 Upvotes

This release of I2P, 2.12.0, continues our work on improving the performance and security of the I2P network. It includes a number of bug fixes and improvements to the I2P software.

Work continues on the implementation of post-quantum cryptography. Improvements to the existing post-quantum implementations improve stability and interoperability with other I2P implementations. We encourage early adopters to continue testing and providing feedback to the I2P team.

A SAMv3 bug which was affecting applications by causing failed lookups has been fixed. Users of SAMv3 applications such as Bitcoin and Bittorrent clients should update to this release to resolve these issues.

As usual, we recommend that you update to this release. The best way to maintain security and help the network is to run the latest release.


r/i2p • • Apr 20 '26

Announcement shop.i2p.net updates: more merch, international shipping, lower prices

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shop.i2p.net
18 Upvotes

Hey everyone, wanted to share a few updates on the I2P shop.

We've given shop.i2p.net a refresh and there's more to browse now. The catalog has expanded with new merchandise, so if you stopped by a while back and didn't see anything that caught your eye, it's worth another look.

We've also opened up international shipping, which has been a frequent request. No matter where you're based, you should now be able to get your order delivered.

On top of that, we've dropped prices across the store to make things more accessible for the community.

If you want to support the project and grab some gear, now's a good time. Check it out at shop.i2p.net and let us know what you think.


r/i2p • • 1d ago

Educational Jpeg-xl progressive decoding demonstration on a i2p eepsite

23 Upvotes

https://reddit.com/link/1x395tv/video/a85qpld8iuuh1/player

photo is 1.2 MB and it loaded in 5 sec (approx 250-350 kb/sec)

browser used: Firefox 157

http://eurabsp7voheencjnumtkmgyoyccuyagojjrvd64mlujoyxzxuoq.b32.i2p/

use this website to test it


r/i2p • • 2d ago

Plugin/Application Ios i2pd client

11 Upvotes

I’ve been working on an iPhone app that embeds the C++ i2pd router. It has a built-in .i2p browser, the i2pd web console, router diagnostics, an address book, and a safe shutdown Live Activity timer in dynamic island.

The project targets iOS 17 and later. The source code and an unsigned IPA are available. To install the IPA, you’ll need to sign it with your own valid certificate.

This is a prototype. The background restriction bypass is experimental, and iOS may still suspend or terminate the router. I haven’t verified it on real iPhone but on simulator of iPhone 18 pro with ios 27 it works.

https://github.com/SoItsTime/I2PdiOS


r/i2p • • 2d ago

Help VPS Hosting

5 Upvotes

Is there a VPS Hoster directly available in the i2p network for hosting eepsites?


r/i2p • • 5d ago

Help Kill switch for built-in torrent client necessary?

1 Upvotes

Hi all,

Very interesting project.

Can someone tell me if the built-in torrent client can accidentally use the clearnet so it's better to have a kill switch in place if something breaks or does the built-in client only works over i2p?

Thanks


r/i2p • • 7d ago

Update for release 2.14.0

30 Upvotes

Due to circumstances beyond my control, my ability to communicate about release has been severely limited this quarter. However, work is progressing essentially on schedule, major changes are in, bugs are being fixed, and release will happen on October 20th as planned last month.

Thanks for your patience, Idk


r/i2p • • 7d ago

Help jetty won't start on i2peasy

2 Upvotes

Using 2.13.0-0-win(on win7), it reads jetty.xml on the same folder which i2p.exe exist.
//I installed program on custom folder.
//I copy back config on appdata\Local\i2peasy but it still don't use this folder.

and copy config/eepsite to upper folder still not work. It don't show red logs anymore but jetty still don't start. (because the flag icon on tunnels don't show)


r/i2p • • 8d ago

Help tunnels config files

0 Upvotes

If I have tunnels configured in both /var/lib/i2pd/ and in /etc/i2pd/ which takes precedent? They are different and there is overlap in only one entry - for port 4448. i2pd console does not show this many tunels though - can it be that both are getting read?


r/i2p • • 12d ago

Discussion forward your ports.

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65 Upvotes

I2P is a Peer 2 peer network It needs people like you to work. If you dont enable port forwarding you cant properly contribute to I2P because users can’t connect to you directly. If you forward your ports I2P will become a faster and lower latency network.

If you can’t forward ports because youre behind CGNAT contact your internet provider and try to get IPv6. Even that alone would be a big contribution to I2P.

If that isnt possible too get a VPN that supports port forwarding (thats what i did)

sharing is caring.


r/i2p • • 13d ago

Discussion Connecting to a remote router

10 Upvotes

I was in a workshop where we played with i2p and it seems the traditional way to use i2p is to run a router on localhost, and have your app use the router via the SAM protocol.

Running the router adds a lot of friction, especially on mobile. I realized that we can just connect to a remote, possibly shared router.

What are the trade-offs here? Can I simply share my router with friends?


r/i2p • • 15d ago

Help ou shi

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0 Upvotes

r/i2p • • 16d ago

Security Before realizing privacy issues

0 Upvotes

I want to ask everyone, before touching i2p and other privacy projects or realizing changes to my own privacy issues, has my privacy already been leaked?


r/i2p • • 17d ago

Help wiki in I2P ?

7 Upvotes

Hello, I've just discovered I2P and after using it a bit, I wanted to know if, like on Tor, there are wikis that list websites


r/i2p • • 18d ago

Guide/Tutorial Instruction how to create secret tunnel inside I2P network

19 Upvotes

My old post here https://www.reddit.com/r/i2p/comments/1pxv52a/instruction_how_to_create_secret_tunnel_inside/ was deleted by reddit as well as my other posts on Reddit and more important my own subreddit too. By the way I try to restore knowledge for all our community reposting from my logs. If something happens again with this post, feel free to post this instruction by yourself, I don't need glory or anything like this keeping this text under my name.

Here is the instruction how to create SECRET tunnel between computers, computer and phone, phone and phone.

I didn't find posts about this topic here. This instruction will explain how to create secret i2p tunnel between server(computer with Linux) and client(Android phone) for all people and for myself so I can access to it from anywhere in case I have new phone/laptop or purged all data on it for crossing the state borders.

Firstly, you need to have binaries on server from there github.com/PurpleI2P/i2pd-tools/ You can build them and save. And for sure you should have already installed i2pd on your computer and phone.

Let's start create a secret tunnel:

  1. Now we generate file of secret tunnel for server(computer with Linux):

./keygen yourserver.dat 11

  1. Copy this file to i2pd folder on server(computer with Linux):

sudo cp yourserver.dat /var/lib/i2pd/

  1. Now we should find destination address for client(Android phone) config:

./keyinfo -b yourserver.dat (we should save address in the string which starts "b33 address:" for step 6)

  1. Now we should find public and private keys for server and client configs:

./x25519 (save both strings, we will need them later in step 5 and 6)

  1. Now we create config for server(computer with Linux) in tunnels.conf file located in /etc/i2pd/tunnels.conf

[anynameforserverconfig]

type = server

host = 127.0.0.1

port = 22 (for example we create a secret i2p tunnel for ssh service, so we chose port 22)

inport = 22666 (can be any number, just remember to use the same number in client config too)

inbound.length = 1 (1 for faster speed, for more anonymous traffic choose 2,3, etc)

outbound.length = 1 (1 for faster speed, for more anonymous traffic choose 2,3, etc)

inbound.quantity = 4

outbound.quantity = 4

inbound.backupQuantity = 2 (reduce traffic when inactive)

outbound.backupQuantity = 2 (reduce traffic when inactive)

i2cp.reduceOnIdle = true

keys = yourserver.dat

signaturetype = 11

i2cp.leaseSetType = 5

i2cp.leaseSetAuthType = 1

i2cp.leaseSetClient.dh.001 = anyname:publickey (insert here public key from step 4)

  1. Now we create config for client(Android phone) in file which should be copied to /sdcard/i2pd/tunnels.conf on Android phone:

[anynameforclientconfig]

type = client

host = 127.0.0.1

port = 22666 (same number as in server config, so your ssh client should use port 22666 for connection)

inbound.length = 1 (1 for faster speed, for more anonymous traffic choose 2,3, etc)

outbound.length = 1 (1 for faster speed, for more anonymous traffic choose 2,3, etc)

inbound.quantity = 4

outbound.quantity = 4

inbound.backupQuantity = 2 (reduce traffic when inactive)

outbound.backupQuantity = 2 (reduce traffic when inactive)

i2cp.dontPublishLeaseSet = true

destination = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.b32.i2p (insert address saved from step 3)

keys = yourclient.dat

i2cp.leaseSetPrivKey = privatekey (insert here private key from step 4)

  1. Now restart i2pd on server(computer with Linux), wait for 5-10 minutes, restart i2pd on client(Android phone). All should work now.

r/i2p • • 21d ago

Announcement i2pbox v2.1 has been released, adding new features b33offlinekeys

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github.com
11 Upvotes

Signing the outer layer of an encrypted LeaseSet needs a key blinded from the destination's signing key for each day, which offlinekeys cannot produce. b33offlinekeys derives that material offline, once per day of the batch, and appends it to a normal offline-signed key file. The router gets a file it can publish with for the whole batch, and the destination's signing key never leaves the offline machine.


r/i2p • • 24d ago

Plugin/Application Has anyone tried running DC++ over I2P? Is this a bad idea?

9 Upvotes

I’m curious if anyone here has ever tested a DC++ client and hub entirely over I2P.

I’ve started working on a fork of existing DC++ client and hub projects with the goal of making them I2P-only. The idea is to block normal clearnet connections completely and make setup as simple as possible.

Before I spend too much time on it, I’d like to know if anyone thinks this is actually useful or if there are technical reasons why DC++ is a poor fit for I2P.

EDIT

AirDC++ and Luadch are communicating over real I2P through SAM, with separate i2pd instances on each node. Hub connections work, chat works, search works, file lists work both ways, and real file transfers work in both directions.

I’ve also tested larger ISO transfers and verified the files with SHA-256 afterwards.

The Windows client is currently keeping its DC traffic on loopback and letting i2pd handle the actual external traffic. I’ve tested things like killing i2pd in the middle of a transfer and trying normal clearnet hub addresses, and so far the client has failed closed instead of falling back to normal TCP/UDP.

There’s still work left: a few more fail-closed tests, hostile/malformed peer data testing, GUI cleanup, packaging, and a proper security review of the I2P-specific changes.

The final goal is basically: install it, start it, connect to an I2P DC hub. No port forwarding, UPnP, SOCKS or manual I2P setup.

Estimated time to a decent public PoC on github: around 3 weeks.


r/i2p • • 24d ago

Help having difficulties with new distro install getting i2p to work (server not found)

0 Upvotes

for unrelated reasons, I switched to a distro based on debian 13, and I immediately couldn't install the repository required to do the debian install in the documentation like I could in the other distro (devuan 6), so I went ahead and installed from the jar file, and now I can't connect to any eepsites whatsoever. Librewolf displays "server not found" upon attempting to access any eepsite, and so does firefox. I believe my ports are set up right since I sure didn't touch anything since installing i2p, and the router has been running for at least 45 minutes, though it took far less time in previous installations.

I will say that I am in fact firewalled, however my firewall of choice (OpenSnitch) isn't blocking anything right now. Should be noted that it still says I'm firewalled.

Any help would be greatly appreciated


r/i2p • • 26d ago

News i spent one year in prison with no internet access, was I2Pd(I2P for Android) messenger built withing this period of time?

5 Upvotes

i spent one year in prison with no internet access, was I2Pd(I2P for Android) messenger built withing this period of time?


r/i2p • • 26d ago

Discussion If AI goes rogue on the internet, would I2P sites be affected?

0 Upvotes

What I mean about AI has more to do with AI being contained to a sandbox that can someone hack into other parts of the internet through various small cracks and I wonder if I2P is entirely separate from the normal internet where it's immune to such problems.


r/i2p • • Sep 12 '26

Protocol Development Fun project searching contributors!

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4 Upvotes

r/i2p • • Sep 07 '26

Android Is there any plan to make an i2p browser for android ?

11 Upvotes

Is there any plan to make an i2p browser for android similar to tor browser for android


r/i2p • • Sep 06 '26

Help xmpp over i2p

15 Upvotes

hey guys! i've been trying to get xmpp over i2p to work. i've followed the official i2pd docs, and while i can message the users within the server i make, i can't connect to other darknet servers (i installed mod_darknet).

i created an issue here: https://issues.prosody.im/2009

if anybody has any idea what's going on, please let me know! are other people's prosody over i2p setups working? what steps did you take?


r/i2p • • Sep 03 '26

Help once again requesting help

7 Upvotes

edit: My issue now is that I can host from the original machine and access the eepsite on my new machine just fine, but I'm unable to do the reverse of that because it seems like the localhost on my other computer isn't accessible and brings me to a 404 page, even on the machine I'm hosting it from, and both while the webserver is running as well as while it's not. When accessing the local webserver from the new machine prior to this transfer of files, it brought me to the help page with no issue. I figure it's not directly related to the filesystem but it's beyond me what's going on. If it wasn't a firewall issue before, I'm not sure why it would be now.

so I think I definitely fucked up. I'm in the process of switching to linux (devuan 6 to be specific) and I was getting i2p up and running and accessing my eepsite from my windows computer that I'm hosting it on, but in the process of moving the files over I replaced the entire eepsite directory in my linux distro (which was, in hindsight, not smart) and now it seems like my eepsite is only accessible through my other computer. Even if I host the webserver on my other computer and try to connect to it on linux, it gives me a 503 error. On my linux install, there is a series of critical errors relating to the Jetty webserver and how it couldn't find a log directory. On my windows 10 machine I fixed this by moving the eepsite folder around but I have no such luxury on my linux machine. The files in the entire .i2p/eepsite directory are identical to on windows, though, which seemed to be the case before I unwisely copy-pasted the entire directory instead of just the eepPriv.dat file and the docroot stuff like I maybe should have done. I'm thinking I gotta figure out how to completely redo this entire installation on my linux system but I don't really have the knowledge to do that. Any help would be greatly appreciated. I'm running java i2p on both machines.


r/i2p • • Sep 02 '26

Help A lightweight, serverless P2P communication app

16 Upvotes

I’m working on an idea for a communication app that is intentionally very different from Discord, Messenger, etc. The goal is a very lightweight P2P app with no accounts, usernames, permanent rooms, chat history, databases, or cloud infrastructure. Text would come first, with voice potentially added later. Ideally, the app would keep almost everything in RAM and disappear when the session ends.

The interesting part is connecting two people without a middleman. For example, Alice opens the app and generates a temporary connection invitation, then sends it to Bob through whatever external channel they already use, such as WhatsApp, Signal, Messenger, or email. The connection information would not be sent as plain text, but the cryptographic side is a separate topic. What I’m trying to understand first is: **what is the minimum information actually needed for Bob’s computer to establish a direct connection to Alice’s computer?** Is it simply an IP, port, protocol, etc., or does it depend on the network situation?

The main reason I want to avoid a middleman is that I don’t want the communication to depend on infrastructure controlled by the app developer. Ideally, after the initial exchange, it would simply be Alice’s computer ↔ Bob’s computer, with no server carrying their messages or storing anything. I know NATs, firewalls, private IPs, and other networking issues make this difficult, so I’m interested in understanding where truly serverless P2P works and where it becomes impossible without some intermediary.

**TL;DR:** I want to build an extremely lightweight, ephemeral P2P chat app with no accounts, history, or central servers. Users exchange temporary connection information through an external channel, then the two computers try to connect directly. I want to understand the networking required to make this work without a middleman.