Frontend Tools Too Slow? Try OXC Written in Rust for 100x Speed Boost!

How long does your project build take? How long does ESLint take to check hundreds of files? Has Prettier formatting ever felt sluggish?

If you’re a frontend developer, these problems are all too familiar. As projects grow, wait times increase and developer experience deteriorates. Today, I’ll introduce a project that’s changing all of this — OXC.

Developer Pain Points

Let’s look at common scenarios in daily development:

Scenario 1: Slow Code Linting

> eslint ./src

# Waiting... waiting... still waiting...
# A medium-sized project might take 30 seconds or more

Scenario 2: Formatting Lag

> prettier --write "./src/**/*.{js,jsx,ts,tsx}"

# With many files, formatting becomes a long wait

Scenario 3: CI/CD Pipeline Timeouts

Project build, linting, and formatting steps consume significant time, causing CI pipelines to frequently timeout and severely impacting team efficiency.

The root cause of these problems: Traditional frontend tools are mostly written in JavaScript, which has inherent performance limitations.

What is OXC?

OXC (Oxidation Compiler) is a high-performance frontend toolchain written in Rust.

The name “Oxidation” is quite fitting — just as metal becomes stronger after oxidation, rewriting JavaScript tools in Rust significantly improves performance.

Why Rust?

Rust is a systems programming language with these characteristics:

• Extreme Performance: Compiled language with execution speed close to C/C++
• Memory Safety: No garbage collection, compile-time memory safety guarantees
• Concurrency Safety: Compiler prevents data races

These features make Rust an ideal choice for rewriting frontend tools.

Performance Comparison: How Big is the Gap?

Let’s look at real data:

Tool	Traditional Tool	OXC Alternative	Performance Gain
Code Linting	ESLint	Oxlint	50-100x
Code Formatting	Prettier	Oxfmt	10-30x
Code Parsing	@babel/parser	@oxc/parser	20-50x
Code Minification	Terser	@oxc/minifier	5-10x

This means an ESLint check that takes 1 minute might only take 1 second with Oxlint!

What Can OXC Do?

OXC is a complete toolchain with six core modules:

1. Oxlint - Code Linting

Quickly check code issues, ESLint rule compatible, works out of the box.

# Check entire project with one command
oxlint ./src

2. Oxfmt - Code Formatting

High-performance formatting tool compatible with Prettier, keeps code style consistent.

# Format all files
oxfmt "./src/**/*.{js,ts}" --write

3. Parser - Code Parsing

Converts code strings to AST (Abstract Syntax Tree), the foundation for building code tools.

4. Transformer - Code Transformation

Compiles TypeScript to JavaScript, supports JSX transformation and syntax downgrading.

5. Minifier - Code Minification

Reduces code size, decreases network transfer time, improves page load speed.

6. Resolver - Module Resolution

Quickly resolves module paths, supports path aliases and TypeScript path mappings.

Quick Start: 5 Minutes to Get Going

Let’s experience OXC’s speed the simplest way possible.

Install Oxlint

# Global installation
npm install -g oxlint

# Or run directly with npx (no installation needed)
npx oxlint ./src

Immediately Check Code

# Check a single file
oxlint src/main.js

# Check entire src directory
oxlint ./src

# Check and auto-fix issues
oxlint ./src --fix

Example Output

  ⚠ eslint(no-unused-vars): 'handleClick' is defined but never used.
    ╭─[src/components/Button.tsx:12:10]
 12 │   function handleClick() {
    ·            ──────┬─────
    ·                  ╰── 'handleClick' is defined here.
 13 │     console.log('clicked');
    ╰───────────────────────────

  Finished in 12ms on 234 files with 0 errors and 1 warning.

12 milliseconds to check 234 files! That’s the speed boost OXC delivers.

Why Should You Care About OXC?

Low Learning Curve

OXC tools are highly compatible with existing ecosystems:

• Oxlint is compatible with ESLint rules, similar configuration file format
• Oxfmt is compatible with Prettier configuration, low migration cost
• Parser/Transformer APIs are similar to Babel style

You don’t need to learn a completely new tool system.

Significant Performance Improvement

In real projects, OXC can significantly improve developer experience:

• Local Development: Code linting completes instantly, no more waiting
• Git Hooks: pre-commit checks finish in a flash
• CI/CD: Pipeline time dramatically reduced, cost savings

Industry Trend

Rewriting frontend tools in Rust has become a trend:

• Vite uses Rolldown (Rust-based) to replace Rollup
• Turbopack uses Rust for lightning-fast builds
• Deno and Bun are both using Rust to improve performance

Learning OXC means embracing the future of frontend tooling.

Summary

OXC is a high-performance frontend toolchain written in Rust, including:

Module	Purpose	Tool Replaced
Oxlint	Code Linting	ESLint
Oxfmt	Code Formatting	Prettier
Parser	Code Parsing	@babel/parser
Transformer	Code Transformation	Babel
Minifier	Code Minification	Terser
Resolver	Module Resolution	enhanced-resolve

In one sentence: Frontend tools too slow? OXC to the rescue.

Next Steps

Want to dive deeper into each module’s detailed usage? Visit the OXC Documentation to get:

• Complete configuration options for each tool
• Real-world examples and best practices
• API reference documentation

In the upcoming series of articles, we’ll dive into each module one by one, teaching you step-by-step how to master the OXC toolchain from scratch. In the next article, we’ll detail the practical usage of Oxlint. Stay tuned!

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💡 Recommended Reading: OXC Documentation - Complete API reference and configuration guide