Install

npm install @wasm-fmt/taplo_fmt

npx jsr add @fmt/taplo-fmt

Usage

Node.js / Deno / Bun / Bundler

import { format } from "@wasm-fmt/taplo_fmt";

const input = `name = "example"
version = "0.1.0"
[dependencies]
serde = "1.0"`;

const formatted = format(input);
console.log(formatted);

with custom options:

import { format } from "@wasm-fmt/taplo_fmt";

const input = `name = "example"
version = "0.1.0"
[dependencies]
serde = "1.0"`;

const formatted = format(input, {
	column_width: 80,
	indent_entries: true,
	align_entries: true,
	align_comments: true,
});
console.log(formatted);

Node.js < 22.19

import { format } from "@wasm-fmt/taplo_fmt/node";

Web

For web environments, you need to initialize the WASM module manually:

import init, { format } from "@wasm-fmt/taplo_fmt/web";

await init();

const input = `name = "example"
version = "0.1.0"
[dependencies]
serde = "1.0"`;

const formatted = format(input);
console.log(formatted);

Vite

import init, { format } from "@wasm-fmt/taplo_fmt/vite";

await init();
// ...

Or use the ./bundler entry with vite-plugin-wasm

import { format } from "@wasm-fmt/taplo_fmt/bundler";

Entry Points

• . - Auto-detects environment (Node.js uses node, Webpack uses bundler, default is ESM)
• ./node - Node.js environment (no init required)
• ./esm - ESM environments like Deno (no init required)
• ./bundler - Bundlers like Webpack (no init required)
• ./web - Web browsers (requires manual init)
• ./vite - Vite bundler (requires manual init)

Credits

Thanks to:

• The Taplo project created by Ferenc Tamás