Data & Dev Config • Zero-Server RAM Execution

Convert TOML to JavaScript Object Online - Free, Local & Instant

Instant TOML (.toml) to JavaScript Object (.js) converter. 100% client-side processing in your browser RAM — zero file uploads, full privacy, drag & drop or paste raw text.

TOML → JavaScript Object ⇄ Swap (JavaScript Object → TOML)

Indent: Auto-type

Input TOML (Paste or Drop File) 📂 Open File

Converted JavaScript Object Output

Technical Comparison: TOML vs JavaScript Object

Data & Dev Config

Specification	TOML (Source)	JavaScript Object (Target)
Full Specification	Tom's Obvious, Minimal Language v1.0	ES Module JavaScript Object Literal
File Extension & MIME	.toml (application/toml)	.js (text/javascript)
Data Typing Model	Strong (strings, integers, floats, booleans, RFC 3339 dates, arrays)	Unquoted identifier keys, single-quoted strings, ES export default
Structure & Hierarchy	Section tables [table] and [[array_of_tables]]	Arbitrarily nested JS objects and arrays
Comments Support	Supported (# comment)	Supported (// and /* */)
Primary Ecosystem	Rust Cargo.toml, Python pyproject.toml, Hugo static sites	Vite/Webpack configs, TypeScript/JS mock data, Next.js constants

TOML to JavaScript Object — Before & After Example

Before (TOML Input)

[app]
name = "my-service"
version = "1.4.2"
port = 8080
debug = false

[database]
host = "localhost"
port = 5432
user = "admin"
password = "s3cr3t"
pool_size = 10

[cache]
enabled = true
ttl_seconds = 3600

After (JavaScript Object Output)

const data = {
  app: {
    name: 'my-service',
    version: '1.4.2',
    port: 8080,
    debug: false,
  },
  database: {
    host: 'localhost',
    port: 5432,
    user: 'admin',
    password: 's3cr3t',
    pool_size: 10,
  },
  cache: {
    enabled: true,
    ttl_seconds: 3600,
  },
};

export default data;

Frequently Asked Questions: TOML to JavaScript Object

How do I convert TOML to JavaScript Object online without uploading sensitive files? ▾

Paste your TOML data or drag and drop a .toml file into the converter above. ZeroUpload parses TOML and serializes JavaScript Object 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 TOML and JavaScript Object? ▾

When converting hierarchical structures (Section tables [table] and [[array_of_tables]]) and tabular or config formats (Arbitrarily nested JS objects and arrays), our engine automatically flattens or unflattens dot-separated keys (such as address.city) and preserves numbers, booleans, arrays, and null values.

Is this TOML to JavaScript Object 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 TOML, database exports, and production secrets.

Can I convert JavaScript Object back to TOML? ▾

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