Convert TOML to Swift online, free. TOML is a readable configuration format built around key/value pairs and tables. Swift Codable structs decode and encode JSON with compile-time safety. TOML to Swift conversion parses your TOML against the TOML v1.0.0 grammar (https://toml.io/en/v1.0.0), builds an in-memory model of its keys, nested objects and arrays, then emits ready-to-use Swift types following the Swift Codable conventions. Processing runs in your browser in JavaScript with no upload or server round-trip — no size limit beyond your device's memory, so multi-megabyte documents convert in milliseconds and sensitive payloads never leave your machine. Typical uses include iOS/macOS apps, Vapor services and API client models.
It maps the full structure of your TOML onto idiomatic Swift types, following the Swift Codable conventions. 100% free, no registration, and complete privacy — everything runs locally in your browser, so your data never touches a server.
Paste TOML and generate Swift types from Swift immediately. Conversion runs client-side, so there is no upload wait and large documents stay fast.
Nested TOML objects, tables and arrays are mapped faithfully onto Swift, including nested types and optional fields.
Your TOML never leaves your device — everything is processed locally in JavaScript, with nothing logged or stored.
Unlimited conversions with no account, no quotas, and no watermark. Works on desktop and mobile.
A TOML document and its Swift equivalent:
TOML input:
host = "db.internal"
port = 5432
secure = trueOutput:
struct Server: Codable {
let host: String
let port: Int
let secure: Bool
}Paste your TOML into the editor and press "Convert to Swift". The tool parses it against the TOML v1.0.0 grammar, then generates Swift types following Swift Codable conventions — instantly and entirely in your browser. You can validate or format the TOML first to be sure it is clean.
TOML values are typed and it has first-class dates and times, so they carry into Swift cleanly. TOML tables become nested Swift types, and arrays-of-tables become lists.
Optional or nullable members in the generated Swift are inferred from keys missing in some records of your TOML, following Swift Codable. Include the optional fields in your sample so they are typed correctly.
TOML (Tom's Obvious Minimal Language) (TOML) — TOML is a readable configuration format built around key/value pairs and tables. Swift structs (Codable) (Swift) — Swift Codable structs decode and encode JSON with compile-time safety. This converter maps the structure of your TOML onto Swift so you can use it for iOS/macOS apps.
Yes. Invalid TOML is flagged with a clear error before anything is converted. Common TOML problems to check are correct key/value pairs, quoted strings, and valid [table] headers. Starting from clean input keeps the generated Swift accurate.
Yes. The entire TOML-to-Swift conversion runs locally in your browser in JavaScript — your TOML is never uploaded, logged or stored. That matters when the data is something like Rust Cargo & Python pyproject config, which should not leave your machine.
The generated Swift is ready for iOS/macOS apps, Vapor services and API client models. Copy or download it and drop it straight into your codebase.
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