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Data & Dev Config • Zero-Server RAM Execution

Convert Lua Table to JSON Online - Free, Local & Instant

Instant Lua Table (.lua) to JSON (.json) converter. 100% client-side processing in your browser RAM — zero file uploads, full privacy, drag & drop or paste raw text.

Lua Table → JSON ⇄ Swap (JSON → Lua Table)

Technical Comparison: Lua Table vs JSON

Data & Dev Config
Specification Lua Table (Source) JSON (Target)
Full Specification Lua / Roblox Luau Native Table Literal JavaScript Object Notation
File Extension & MIME .lua (text/x-lua) .json (application/json)
Data Typing Model Dynamic (1-based arrays, dictionary records, booleans, numbers, nil) Strict (strings, numbers, booleans, arrays, objects, null)
Structure & Hierarchy Nested associative/array tables { key = value } Deeply nested trees & arrays
Comments Support Supported (-- single line and --[[ block ]]) Not supported in RFC 8259 (supported via relaxed parser)
Primary Ecosystem Roblox Studio ModuleScripts, Love2D, World of Warcraft addons, Neovim configs REST APIs, web apps, NoSQL document stores, modern configs

Lua Table to JSON — Before & After Example

Before (Lua Table Input)
local data = {
  {
    id = 1,
    name = "Alice Johnson",
    email = "alice@example.com",
    role = "admin",
    active = true,
    score = 98.5,
    address = {
      city = "Berlin",
      country = "DE",
    },
  },
  {
    id = 2,
    name = "Bob Smith",
    email = "bob@example.com",
    role = "editor",
    active = false,
    score = 87,
    address = {
      city = "Austin",
      country = "US",
    },
  },
  {
    id = 3,
    name = "Chiara Rossi",
    email = "chiara@example.com",
    role = "viewer",
    active = true,
    score = 91.25,
    address = {
      city = "Milan",
      country = "IT",
    },
  },
}

return data
After (JSON Output)
[
  {
    "id": 1,
    "name": "Alice Johnson",
    "email": "alice@example.com",
    "role": "admin",
    "active": true,
    "score": 98.5,
    "address": {
      "city": "Berlin",
      "country": "DE"
    }
  },
  {
    "id": 2,
    "name": "Bob Smith",
    "email": "bob@example.com",
    "role": "editor",
    "active": false,
    "score": 87,
    "address": {
      "city": "Austin",
      "country": "US"
    }
  },
  {
    "id": 3,
    "name": "Chiara Rossi",
    "email": "chiara@example.com",
    "role": "viewer",
    "active": true,
    "score": 91.25,
    "address": {
      "city": "Milan",
      "country": "IT"
    }
  }
]

Frequently Asked Questions: Lua Table to JSON

How do I convert Lua Table to JSON online without uploading sensitive files? ▾

Paste your Lua Table data or drag and drop a .lua file into the converter above. ZeroUpload parses Lua Table and serializes JSON 100% inside your browser RAM using local JavaScript—no bytes are ever sent to an external server.

How are nested objects or tabular columns mapped between Lua Table and JSON? ▾

When converting hierarchical structures (Nested associative/array tables { key = value }) and tabular or config formats (Deeply nested trees & arrays), our engine automatically flattens or unflattens dot-separated keys (such as address.city) and preserves numbers, booleans, arrays, and null values.

Is this Lua Table to JSON converter free for commercial and production config files? ▾

Yes. The tool is completely free, requires no account or API key, and works offline once loaded. Because execution happens in local memory, it is safe for proprietary Lua Table, database exports, and production secrets.

Can I convert JSON back to Lua Table? ▾

Yes! Click the "Swap (JSON → Lua Table)" button at the top of the workspace or use the reverse converter link at the bottom of this page for bidirectional conversion.