Why does Roblox cap DataStore values at 4 MB?

Roblox enforces a 4,000,000-byte UTF-8 limit per value to keep replication and storage predictable. Exceeding it triggers Error 105.

How do I measure DataStore size in Luau?

Use `string.len(HttpService:JSONEncode(data))` after serializing your value. This calculator does the same in your browser.

What's the maximum DataStore key length?

Roblox documents 50 characters but DevForum 176772 confirmed 49 is the safe effective limit.

Roblox DataStore-Größen- und Key-Validator

Roblox limitiert DataStore-Werte auf 4 MB UTF-8. Vermeide Error 105 vor dem Deploy.

71 Bytes UTF-80.00% des 4 MB Limits

Sicher. Unter 60% des Limits.

Baue ein Roblox-Spiel ohne zu programmieren

roship schreibt das Luau, du behältst 70% jedes Verkaufs.

roship kostenlos testen

In deinem Spiel verwenden (roblox-ts):

// Safe-save: refuse payloads above 4 MB (generated by roship.ai)
import { DataStoreService, HttpService } from "@rbxts/services";

const store = DataStoreService.GetDataStore("PlayerData");
const measure = (data: unknown): number =>
  HttpService.JSONEncode(data).size();

function safeSave(key: string, data: unknown): void {
  const bytes = measure(data);
  if (bytes > 4_000_000) {
    warn(`Payload ${bytes}B exceeds 4MB cap`);
    return;
  }
  store.SetAsync(key, data);
}

Baue ein Roblox-Spiel ohne zu programmieren

roship schreibt das Luau, du behältst 70% jedes Verkaufs.

roship kostenlos testen

In deinem Spiel verwenden (roblox-ts):

// Safe-save: refuse payloads above 4 MB (generated by roship.ai)
import { DataStoreService, HttpService } from "@rbxts/services";

const store = DataStoreService.GetDataStore("PlayerData");
const measure = (data: unknown): number =>
  HttpService.JSONEncode(data).size();

function safeSave(key: string, data: unknown): void {
  const bytes = measure(data);
  if (bytes > 4_000_000) {
    warn(`Payload ${bytes}B exceeds 4MB cap`);
    return;
  }
  store.SetAsync(key, data);
}