Source-checkedAdmin & protection

ProtocolStringReplacer - Efficient message editor[1.8-1.21.6]

by Rothes · for Minecraft

Customize all messages on servers | Also Parse Placeholder everywhere

13KDownloads
22 mo agoLast updated
Spigot · PaperLoaders
1.21Latest game version

About ProtocolStringReplacer - Efficient message editor[1.8-1.21.6]

From SpigotMC

Customize all messages on servers | Also Parse Placeholder everywhere

ProtocolStringReplacer​

MCBBS (Chinese) : https://www.mcbbs.net/thread-1209429-1-1.html

This plugin requires ProtocolLib 4.4.0+ , NBTAPI, and OPTIONAL PlaceHolderAPI 2.10.7+
Notice: If you are trying to replace colors in your ReplacerConfig, use '§'(Vanilla Minecraft color character) instead of '&'(Bukkit color character). e.g. §3§l instead of &3&l

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┃ Introduction
ProtocolStringReplacer is a plugin that realizes the function of replacing strings by editing packets. It is committed to optimizing efficiency and providing more functions for use.
Because only the packet sent to the player is edited, plugin will not affect the processing from the server.

┃ Features
  • Fix Log4j 0day CVE vulnerability (For all servers)
    <button type="button" class="button bbCodeSpoilerButton ToggleTrigger Tooltip JsOnly" title="Click to reveal or hide spoiler" data-target="> .SpoilerTarget">Spoiler: Click to see effect</button>
  • We have a /psr capture command to let you easily copy the original texts.
  • Edit 1.19.0-1.19.2 ChatPreview Component
  • Edit Item full NBT, DisplayName and Lore
  • Edit TabComplete Strings
  • Edit Combat Died(Death Screen) Message
  • Edit Kick Disconnect Message
  • Edit Book Contents / Author
  • Edit Boss-Bar Texts
  • Edit Sign full NBT, 4/8 Text Lines
  • Edit ScoreBoard Texts
  • Edit Console Messages
  • Edit Title Messages
  • Edit Chat Messages
  • Edit Window-Title Texts
  • Edit Entity name
  • Support Convert PLAYER_CHAT packets to SYSTEM_CHAT packets, to make sure replacements on 1.19. (Side Effect: Clients cannot detect the player who sent the messages. E.g. cannot report players via chat)
  • Support Replace strings, or just block that packet!
  • Use Aho-Corasick Algorithm for string replace! It's crazy fast!
  • Will not increase the bandwidth pressure of the server! All replacements are processed on the original packet.
  • Support editing Json , and Intelligent processing of Json,
  • Will not break any extra contents(e.g. HoverEvent) in messages.
  • ItemMeta cache System, only needs 1ms for processing ItemStacks in a window.
  • Edit the replaces and blocks in game.
  • You can create multiple replacer configs for greater legibility.
  • Safe placeholder replacement system.
  • Full hot-load and hot-unload support.
  • Filter System(Client locale, permission and many else).
…… And more.

┃ Commands
/psr help - List all the commands
/psr edit - Replacer configs editor in game
/psr parse - Test replacing strings
/psr capture - Capture contents in packets
/psr reload - Reload replacer configs

┃ Permissions
protocolstringreplacer.command.edit - Allow to use edit commands
protocolstringreplacer.command.parse - Allow to use parse commands
protocolstringreplacer.command.reload - Allow to use reload commands
protocolstringreplacer.command.capture - Allow to use capture commands
protocolstringreplacer.feature.usermetacache - Restore original itemstack when receive packet from player to avoid errors in Creative gamemode.
protocolstringreplacer.feature.usermetacache.noncreative - Same with above, but for other gamemodes. To avoid errors caused by other plugins usually.

┃ Example ReplacerConfig
Replacer Config Examples are now built in the plugin jar, and will be created the first time you run the plugin.

┃ Support
For docs, please check Config.yml and Replacers\Example.yml . The comments in the files explain almost all the features we have. We don't have a maintaining wiki right away.
For discussing, supporting you can join our Discord server.
If you met any bug, please report it on GitHub. Write the issue in English or Chinese.
DO NOT post it in the spigotmc comments. I don't check it often, which means you will not get support.

┃ bStats
[​IMG]
Thanks to all the servers who join the bStats anonymous data collection. This really helps me a lot in development and provides me with a steady motivation.

Highlights

From source data

Game versions

Supports 15 Minecraft versions, the newest being 1.21.

Loaders

Runs on Spigot and Paper.

Footprint

Rated a light load on a server.

ProtocolStringReplacer - Efficient message editor[1.8-1.21.6] on Nxeon

From our catalogue
One-click install
Supported on Nxeon Minecraft servers, for Paper servers. We download it from SpigotMC, place it, and restart the server.
Server side
Required on the server
Server type needed
Spigot, Paper
Server load
light
Smallest plan we suggest
Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
Latest build
3.2.3, released 2025-08-05

Game versions by loader

LoaderGame versionsNewest
Paper1.8 to 1.21 (15 versions)1.21
Spigot1.8 to 1.21 (15 versions)1.21

From 10 recorded builds of ProtocolStringReplacer - Efficient message editor[1.8-1.21.6].

Recent builds

BuildReleasedGame versionsLoaders
3.2.32025-08-051.8 to 1.21 (15 versions)Spigot, Paper
3.2.22025-06-28n/aSpigot, Paper
3.2.12025-06-21n/aSpigot, Paper
LATEST2025-06-21n/aSpigot, Paper
3.1.22025-01-02n/aSpigot, Paper
3.1.12024-10-18n/aSpigot, Paper

Run ProtocolStringReplacer - Efficient message editor[1.8-1.21.6] on a Minecraft server

Pick a server or deploy a new one above; it is installed in one click.

What kind of mod it is

From the catalog
Listed on SpigotMC as “Admin”

Admin & protection

Permissions, moderation, anti-cheat and land protection for the people running the server.

Runs on your server

From source side support

SpigotMC lists ProtocolStringReplacer - Efficient message editor[1.8-1.21.6] as required on the server. Check its SpigotMC page to see whether players need it too.

Compatibility

Game
Minecraft
Loaders
SpigotPaper
Runs on
Serverrequired on the server
Game versions
1.21 and 14 earlier
Requires
One-click install needs a Paper server.

Verified at the source

  • ✓SpigotMCOfficial listing, checked 2026-10-02Open ↗
  • ✓AuthorRothes, as published on SpigotMC
  • ✓LicenseNot published by the sourceFree

ProtocolStringReplacer - Efficient message editor[1.8-1.21.6], answered

Generated from the mod’s own source data.

Do my players need to install ProtocolStringReplacer - Efficient message editor[1.8-1.21.6]?

SpigotMC lists ProtocolStringReplacer - Efficient message editor[1.8-1.21.6] as required on the server. Check its SpigotMC page to see whether players need it too.

Which loaders does it support?

Spigot and Paper.

Is it free?

Yes. ProtocolStringReplacer - Efficient message editor[1.8-1.21.6] is free to download from SpigotMC.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

NxLabs

Run ProtocolStringReplacer - Efficient message editor[1.8-1.21.6] on a Minecraft server.

Deploy in about a minute from $4.99 a month, then add ProtocolStringReplacer - Efficient message editor[1.8-1.21.6] in one click.