Nbs Recorder
by zjafk
Nbs Recorder captures note block sounds from the client and saves them as an .nbs song file, limited to a region the player selects.
What it does
Recording starts once the player has set up a selection, and the recorder captures the note block sound events that happen inside that area. The commands begin with nbs, so nbs start begins a capture and nbs stop ends it. When the capture ends, the finished song is written as a .nbs file into the NoteBlockStudio folder inside the game directory, where it can be opened in note block editing tools.
Only the client needs the mod: it reads sound events that are already played on the player's own side, so the server does not have to run anything. Files target Fabric for game versions 26.1 – 26.2, with 1.0.0 for 26.2 as the latest file, released on 2026-08-22. The code is open source under the MIT License, and the source code and issue tracker are public.
Key features
Region-limited recording
Only note block sounds inside the selected region are captured, so unrelated parts of the world stay out of the file.
Start and stop commands
The nbs start and nbs stop commands control each recording, and the selection is made before the first one.
NBS file output
Each capture is saved as a .nbs file, a format used by note block music editors.
Output folder
Saved files go to the NoteBlockStudio folder in the game directory, keeping recordings in one place.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Transcribing in-game songs
A player who builds a note block song can capture the performance and keep it as a .nbs file for later editing.
Archiving contraptions
Builders who want to keep a record of an automated music build can save its output from a fixed region.
Who it’s for: Players who build note block music and want to keep a copy of it as a .nbs file. Because it runs on the client alone, it suits single-player worlds and multiplayer players who join servers without installing anything on the server.
How it compares
NBS Extensions is open source under the GNU Lesser General Public License v3.0 only and is client-side only, with files for 1.21.1 – 1.21.11 on Fabric. RelativityTick is not open source, is published under the MIT License for 1.21 – 1.21.11 on Fabric, and must run on both client and server. Nbs Recorder covers 26.1 – 26.2 on Fabric and is client-side only, so no server changes are needed.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Nbs Recorder | Fabric | 26.1 – 26.2 | Client-side only | 2026-08-22 |
| NBS Extensions | Fabric | 1.21.1 – 1.21.11 | Client-side only | 2026-01-25 |
| RelativityTick | Fabric | 1.21 – 1.21.11 | Client and server | 2026-09-13 |
Questions
Does Nbs Recorder need to be installed on the server?
Where are recorded songs saved?
Which game versions does Nbs Recorder support?
In the catalog
Nbs Recorder is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 13,894 mods support Minecraft 26.2.
Similar mods
What the author says
Do you want to save the redstone music you've made in Minecraft? NBS Recorder records client-side note block sound events within a selected region and saves them as a.nbs file.
Official listing
- Modrinth page
- modrinth.com/mod/nbs-recorder
- Owner
- zjafk
- Published
- 2026-08-22
- Updated on Modrinth
- 2026-08-22
- Facts verified
- 2026-10-15