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FlowChat

Regex-powered chat processor for Minecraft. Replace, filter, toast, auto-respond, and play sounds on chat messages -- works on clients and servers across every major platform. Current version: 2.1.2.

Platforms

Platform	Type	Versions
Fabric	Client mod	1.14.4 - 1.21.11
Forge	Client mod	1.7.10 - 1.21.11
NeoForge	Client mod	1.20.4 - 1.21.11
Spigot/Paper	Server plugin	1.7.10 - 1.21.11
BungeeCord	Proxy plugin	Latest
Velocity	Proxy plugin	Latest

Features

Regex replacement -- Match incoming chat with regex, replace with formatted text
Outgoing message rules -- Intercept and rewrite messages you send (command aliases, color prefixing)
Color-aware matching -- colorAware: true matches against text with color codes preserved; replacements support &a, &l, etc.
Toast notifications -- Redirect matched messages from chat to overlay display ("toast": true)
Notification styles -- "notifyStyle": "actionbar" (default), "toast" (system toast), or "advancement" (achievement popup)
Sound alerts -- Play sounds on match: "sound": true (default sound), "sound": "bell" (specific sound), or "sound": "note_pling"
Auto-responses -- Send a command/message when a pattern matches: "respond": "/cmd" (single) or "respond": ["/cmd1", "/cmd2"] (multi)
JSON matching -- matchJson: true matches against raw JSON chat components instead of displayed text
Value stacking -- Aggregate numeric capture groups across rapid messages into running totals
Tag selectors -- {player}, {time}, {biome}, {item_name}, and 389 more expanded in replacements
Server filtering -- "server": "^mc\\.example\\.com" restricts a rule to matching servers only
Message cancellation -- Set replacement to pleasecancelthismessage to hide a message from chat entirely
Hot-reload -- Edit rules file without restarting the game or server
Legacy field support -- Old field names (search, toastMe, respondMsg, serversearch, msgsearch, msgreplacement) still work via aliases

Rule Format

{
  "incoming": [
    { "pattern": "hello", "replacement": "world" },
    { "pattern": "alert_me", "toast": true, "sound": "bell", "notifyStyle": "advancement" },
    { "pattern": "greet", "respond": ["/say Hi!", "/say Welcome!"] }
  ],
  "outgoing": [
    { "pattern": "/b", "replacement": "/bottle get 64" }
  ]
}

Value Stacking

Aggregates numeric capture groups across rapid successive messages. When a shop sends multiple lines quickly (e.g. selling items in bulk), value stacking collapses them into a running total.

Token	Meaning
`$1`, `$2`, ...	Standard regex group references (current match only)
`$^1`, `$^2`, ...	Stacked value for that group (accumulated total)
`$^i`	Iteration count (how many messages stacked)

Installation

Client: Download the JAR for your MC version and loader from Releases. Drop it in your mods/ folder. FlowChat creates a default config at .minecraft/config/flowchat.json on first launch.

Server: Download the server JAR (Spigot, Bungee, Velocity, or Unified) from Releases. Drop it in plugins/. For 1.14.4+ servers, install PacketEvents for packet-level chat interception (optional -- falls back to Bukkit events).

Reload: Edit flowchat.json and run /flowchat reload in-game. No restart needed.

Links

No gallery available for this project.

Version	Minecraft	Loader	Download
FlowChat 2.1.2 (Server) 2.1.2+server	1.7.10, 1.8.9, 1.9.4, 1.10.2, 1.11.2, 1.12.2, 1.14.4, 1.15.2, 1.16.5, 1.17.1, 1.18.2, 1.19.2, 1.19.4, 1.20.1, 1.20.4, 1.20.6, 1.21.1, 1.21.4, 1.21.5, 1.21.9, 1.21.11	bukkit, paper, spigot	Download
FlowChat 2.1.2 (NeoForge) 2.1.2+neoforge	1.20.4, 1.20.6, 1.21.1, 1.21.4, 1.21.5, 1.21.9, 1.21.11	neoforge	Download
FlowChat 2.1.2 (Forge) 2.1.2+forge	1.7.10, 1.8.9, 1.9.4, 1.10.2, 1.11.2, 1.12.2, 1.14.4, 1.16.5, 1.18.2, 1.19.2, 1.19.4, 1.20.1, 1.20.4, 1.20.6, 1.21.1, 1.21.4, 1.21.5, 1.21.9, 1.21.11	forge	Download
FlowChat 2.1.2 (Fabric) 2.1.2+fabric	1.14.4, 1.15.2, 1.16.5, 1.17.1, 1.18.2, 1.19.2, 1.19.4, 1.20.1, 1.20.4, 1.20.6, 1.21.1, 1.21.4, 1.21.5, 1.21.9, 1.21.11	fabric	Download
v2.1.1 (Server - Spigot/Paper/BungeeCord/Velocity) 2.1.1+server	1.7.10, 1.8.9, 1.9.4, 1.10.2, 1.11.2, 1.12.2, 1.14.4, 1.15.2, 1.16.1, 1.16.5, 1.17.1, 1.18.2, 1.19, 1.19.1, 1.19.2, 1.19.4, 1.20.1, 1.20.4, 1.20.6, 1.21.1, 1.21.5, 1.21.9, 1.21.11, 26.1.2	bukkit, paper, spigot	Download
v2.1.1 (Neoforge) 2.1.1+neoforge	1.20.4, 1.20.6, 1.21.1, 1.21.5, 1.21.9, 1.21.11, 26.1.2	neoforge	Download
v2.1.1 (Forge) 2.1.1+forge	1.7.10, 1.8.9, 1.9.4, 1.10.2, 1.11.2, 1.12.2, 1.14.4, 1.16.1, 1.16.5, 1.18.2, 1.19, 1.19.1, 1.19.2, 1.19.4, 1.20.1, 1.20.4, 1.20.6, 1.21.1, 1.21.5, 1.21.9, 1.21.11, 26.1.2	forge	Download
v2.1.1 (Fabric) 2.1.1+fabric	1.14.4, 1.15.2, 1.16.1, 1.16.5, 1.17.1, 1.18.2, 1.19, 1.19.1, 1.19.2, 1.19.4, 1.20.1, 1.20.4, 1.20.6, 1.21.1, 1.21.5, 1.21.9, 1.21.11, 26.1.2	fabric	Download
v2.1.0 (Spigot/Paper/Bukkit) 2.1.0+spigot	1.7.10, 1.8.9, 1.9.4, 1.10.2, 1.11.2, 1.12.2, 1.14.4, 1.15.2, 1.16.5, 1.17.1, 1.18.2, 1.19.2, 1.19.4, 1.20.1, 1.20.4, 1.20.6, 1.21.1, 1.21.4	bukkit, paper, spigot	Download
v2.1.0 (NeoForge) 2.1.0+neoforge	1.20.4, 1.20.6, 1.21.1, 1.21.4	neoforge	Download
v2.1.0 (Forge) 2.1.0+forge	1.7.10, 1.8.9, 1.9.4, 1.10.2, 1.11.2, 1.12.2, 1.14.4, 1.15.2, 1.16.5, 1.17.1, 1.18.2, 1.19.2, 1.19.4, 1.20.1, 1.20.4, 1.20.6, 1.21.1, 1.21.4	forge	Download
v2.1.0 2.1.0	1.16.5, 1.17.1, 1.18.2, 1.19.2, 1.19.4, 1.20.1, 1.20.4, 1.20.6, 1.21.1, 1.21.4	fabric	Download