String Optimizer
by RemedyRift
String Optimizer is a Fabric client-side mod that clumps nearby item stacks of string together so they take up less space in the world.
What it does
Nearby stacks of string on the ground are merged into a single clump, which reduces the number of separate entities the client has to track. Only the client needs the mod; a server running vanilla or other mods works without it. Builds cover 1.21 – 1.21.11 with Fabric, and the latest file is 1.1 for 1.21.11.
Key features
Clumped string stacks
Dropped string close together is grouped into one stack, so fewer separate items are drawn.
Fewer tracked entities
Merging nearby string lowers the count of item entities the game has to process in busy areas.
Client-only install
Players install it alone; servers that do not run the mod are unaffected and need no changes.
Compatibility
Latest build for each game version and loader.
1.21.x12 of 12 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Questions
Does String Optimizer need a server install?
In the catalog
String Optimizer is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 19,862 mods support Minecraft 1.21.11.
Similar mods
What the author says
If 2 or more stacks of string are near each other, they will combine into one. Client-Sided, works on servers. Improves performance greatly and is a must have for servers where string is a necessity.
Official listing
- Modrinth page
- modrinth.com/mod/stringperformance
- Owner
- RemedyRift
- Published
- 2025-10-26
- Updated on Modrinth
- 2026-02-21
- Facts verified
- 2026-10-15