SimpleCom
SimpleCom lets players talk in-game through push-to-talk voice channels, with audio relayed by a server plugin rather than sent peer to peer.
What it does
Players hold V to record and release it to send, and the client shows Recording... while audio is captured and how many KB were sent. When another player speaks, the client shows their name as speaking. Channels are chosen with the C key, which opens a channel screen where a number from 1 to 100 is entered, and channel 0 mutes sending and receiving. The push-to-talk and channel settings can be rebound in the Controls menu under the SimpleCom category.
The client mod requires Architectury API and Fabric API on Fabric, and Architectury API on Forge. Voice does not work unless the SimpleCom server plugin is installed on a Bukkit, Spigot, Paper, Purpur or Folia server. After joining, a success message confirms the plugin is active; if none arrives, a timeout message appears and voice stays off. The mod is released under the GNU Lesser General Public License v2.1 only, and its source code is open.
The project exists because most voice mods send real-time audio over UDP, which often fails behind symmetric NAT, carrier-grade NAT and strict firewalls that drop UDP entirely. SimpleCom instead carries voice inside Minecraft's TCP payloads, so players on those networks can still connect and hear others.
Key features
Push-to-talk voice
Holding V records microphone audio and releasing it sends the recording to the channel.
Numbered channels
The C key opens a channel screen where a number from 1 to 100 selects the channel, and channel 0 mutes sending and receiving.
Speaking indicator
The client shows the name of any player whose voice is coming in, along with a recording status and the size of each sent clip.
TCP-based relay
Voice travels inside Minecraft's TCP payloads through the server plugin, so networks that block UDP can still use it.
Compatibility
Latest build for each game version and loader.
1.21.x12 of 12 versions with builds
1.20.x7 of 7 versions with builds
1.19.x5 of 5 versions with builds
1.18.x3 of 3 versions with builds
1.17.x2 of 2 versions with builds
1.16.x1 of 1 version with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
Use cases
Who it’s for: Players who want in-game voice on servers that can run a server plugin, particularly those whose networks block UDP. Server owners on Bukkit-family platforms who want to offer voice chat without a UDP-based system.
Questions
Does SimpleCom need a server plugin?
Which dependencies does SimpleCom require?
In the catalog
SimpleCom is one of 8,499 Technology mods on ModsFinder, and one of 4,201 Technology mods for Fabric. 19,862 mods support Minecraft 1.21.11.
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What the author says
Why SimpleCom exists: Most voice mods use UDP for real-time audio. UDP often fails in real networks: symmetric NAT, carrier-grade NAT, firewalls, and strict ISPs can block or drop UDP entirely. Players behind such networks cannot connect or hear each other. SimpleCom sends voice over the same TCP connection you…
Official listing
- Modrinth page
- modrinth.com/mod/simplecom
- Owner
- xiaofanforfabric
- Published
- 2026-03-04
- Updated on Modrinth
- 2026-03-11
- Facts verified
- 2026-10-15