@biomejs/biome vs dprint: Modern Code Formatting and Linting Compared

Both @biomejs/biome and dprint are next-generation tools built to solve the same core problem: making code formatting and linting faster, simpler, and more reliable. But they take different approaches to get there. Let’s compare how they work in practice.

🧰 Core Philosophy: Integrated Suite vs Plugin-Based Formatter

@biomejs/biome is an all-in-one JavaScript toolchain that includes a linter, formatter, and analyzer — all in one binary. It’s designed to replace ESLint, Prettier, and even parts of your type checker.

// biome.json (minimal config)
{
  "$schema": "https://biomejs.dev/schemas/1.7.3/schema.json",
  "formatter": {
    "indentStyle": "space",
    "indentWidth": 2
  },
  "linter": {
    "enabled": true,
    "rules": {
      "recommended": true
    }
  }
}

You run everything with one command:

# Format and lint in one go
npx @biomejs/biome check --apply src/

dprint is primarily a code formatter that uses plugins to support different languages. It doesn’t include linting or semantic analysis — it focuses solely on formatting source code consistently.

// dprint.json
{
  "incremental": true,
  "typescript": {
    "quoteStyle": "preferDouble",
    "indentWidth": 2
  },
  "includes": ["**/*.{ts,tsx,js,jsx,json,md}"]
}

You run it like this:

# Format supported files
npx dprint fmt

💡 Key difference: Biome lints and formats, while dprint only formats.

⚙️ Configuration Style: Opinionated Defaults vs Granular Control

@biomejs/biome ships with strong opinions. You can override them, but the goal is to minimize config. For example, it enforces trailing commas and specific brace styles by default.

// Biome will auto-fix this to use double quotes and add trailing comma
const user = { name: 'Alice', age: 30 };
// Becomes:
const user = { name: "Alice", age: 30, };

Its linter also catches bugs like unused variables:

function greet() {
  const message = "Hello"; // Biome warns: 'message' is never used
  return "Hi";
}

dprint gives you fine-grained control over every formatting rule. Want single quotes? Tabs instead of spaces? No semicolons? You can configure it.

// dprint.json
{
  "typescript": {
    "quoteStyle": "preferSingle",
    "useSemicolons": false,
    "indentStyle": "tab"
  }
}

But remember: dprint won’t tell you that a variable is unused. It only changes whitespace, quotes, and layout.

🌐 Language Support: JS-Centric vs Multi-Language

@biomejs/biome currently supports JavaScript, TypeScript, JSX, TSX, JSON, and JSONC. It’s laser-focused on the frontend/web ecosystem.

// biome handles React components out of the box
function App() {
  return <div>Hello</div>;
}

dprint supports those too — but also Markdown, TOML, Rust, and more via official and community plugins.

// dprint.json
{
  "plugins": [
    "https://plugins.dprint.dev/typescript-0.89.0.wasm",
    "https://plugins.dprint.dev/json-0.19.0.wasm",
    "https://plugins.dprint.dev/markdown-0.17.0.wasm"
  ]
}

This makes dprint a better fit if your project mixes JavaScript with documentation (Markdown), config files (TOML/JSON), or even backend code (Rust).

🛠️ Integration with Editors and CI

Both integrate well with editors like VS Code.

For Biome, install the official extension and it handles formatting and diagnostics inline:

// .vscode/settings.json
{
  "editor.defaultFormatter": "biomejs.biome",
  "editor.formatOnSave": true
}

For dprint, use the dprint VS Code extension:

// .vscode/settings.json
{
  "editor.defaultFormatter": "dprint.dprint",
  "editor.formatOnSave": true
}

In CI, both support checking without applying changes:

# Biome: fail if formatting or linting issues exist
npx @biomejs/biome check src/

# dprint: fail if files aren't formatted
npx dprint check

But note: biome check also runs linter rules, while dprint check only verifies formatting.

🚀 Performance and Architecture

Both are written in Rust and compile to native binaries, making them significantly faster than JavaScript-based tools like Prettier or ESLint.

However, Biome goes further by using a custom parser designed for error recovery and speed, and it shares ASTs between linting and formatting passes to avoid redundant work.

dprint uses language-specific parsers (often the same as Prettier’s) but processes each file independently per plugin.

In practice, both feel instant on medium-sized projects. The difference shows in very large codebases, where Biome’s integrated architecture may have an edge.

🔒 Safety and Correctness

@biomejs/biome includes semantic-aware linting. For example, it knows the difference between let and const, and can suggest fixes based on usage:

let value = 42; // Biome suggests: convert to 'const'
console.log(value);

It also prevents common footguns:

if (user.name = "admin") { } // Biome catches accidental assignment in condition

dprint does not perform these checks. It treats code as text with structure — it doesn’t understand variable scopes or types. So it won’t catch logic errors, only style inconsistencies.

📦 Installation and Setup

Both are easy to install via npm:

# Biome
npm install --save-dev @biomejs/biome

# dprint
npm install --save-dev dprint

But Biome provides a setup wizard:

npx @biomejs/biome init

This generates a biome.json with sensible defaults. dprint requires manual config or copying examples from docs.

🤝 Similarities: What They Share

Despite differences, both tools agree on several key principles:

1. ⚡ Speed Matters

Both are orders of magnitude faster than legacy JS tooling, thanks to Rust.

2. 🔧 Minimal Configuration by Default

They ship with reasonable defaults so you can start formatting immediately.

3. ✅ Deterministic Output

Given the same input and config, they always produce the same output — no randomness.

4. 🧩 Editor Integration

Both offer official VS Code extensions with real-time feedback.

5. 🔒 Safe Formatting

Neither tool changes code semantics — formatting only affects whitespace, quotes, and line breaks (within configured rules).

📊 Summary: Key Differences

💡 Final Recommendation

• If you’re working on a JavaScript or TypeScript project and want to replace ESLint + Prettier with one fast, safe tool that also catches bugs, go with @biomejs/biome.

• If you’re in a multi-language codebase (e.g., JS + Markdown + config files) and only need consistent formatting without linting, dprint gives you more flexibility and broader language coverage.

Both are excellent choices that represent the future of developer tooling — fast, reliable, and focused on improving daily workflow without unnecessary complexity.