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⚡ INSTANT · PRIVATE · AI-POWERED

Your code, formatted
in milliseconds.

Format, lint, and optimize code across 20+ languages with contextual AI — right in your browser, no install, no account.

View Pricing →
No account required Code never stored 20+ languages
0M+
Active Developers Targeted
0+
Languages Supported
<100ms
Average Format Time
0.0%
Uptime SLA
WHAT YOU GET

Everything a developer actually needs.

No bloat. No lock-in. Just a formatter that respects your time and your code.

CORE FREE

Speed

Sub-100ms client-side formatting for every supported language, right in your browser.

🛡
ALL TIERS

Privacy

Format Code runs 100% locally — your code never leaves your browser. The AI features below (Pro) necessarily send code to our servers to reach the model; we don't store it afterward.

PRO

AI Suggestions

Contextual AI that catches logic issues and explains refactors as it formats.

Upgrade to Pro to unlock AI suggestions
🗂
PRO

Snippet Vault

Tag, search, and organize snippets. Pro unlocks an unlimited private vault plus public sharing links.

📦
PRO

Batch Processing

Upload up to 200 files at once — language is detected per file — and download one combined report of the formatted results.

👥
PRO

Team Collaboration

Shared snippet libraries and audit logs, so your whole team can see what changed and when.

LANGUAGE SUPPORT

20+ languages. One tool.

Stop switching between Prettier, Black, and gofmt. Free covers JavaScript, TypeScript, Python, CSS, and HTML — Pro unlocks all 20+.

PRICING

Start free. Upgrade when you're ready.

No lock-in. No hidden fees.

Free

$0
forever
  • Unlimited snippets
  • 5 languages (JS, TS, Python, CSS, HTML)
  • Basic quality metrics
  • Free code beautifier
Most Popular

Pro

$9.99/mo
billed monthly
  • Everything in Free, plus:
  • Unlimited formatting & optimization
  • 20+ language support
  • AI-powered code suggestions
  • AI code analysis
  • Private snippet vault (unlimited) + sharing links
  • Batch processing (100+ files)
  • Team collaboration & shared libraries
  • Audit logs
  • API access (up to 50K requests/month)

No credit card required

Trusted by developers at

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INTEGRATIONS

Fits into the workflow you already have.

GitHub Integration

Checks every pull request with a real GitHub Action and comments a computed style score directly on the PR — it flags what needs formatting, it doesn't auto-fix or commit changes for you.

Real — install from source
#248 — Refactor auth middleware
🧹 Code Optimizer format check
Style score: 87/100 — 13 of 15 files already formatted
Needs formatting: auth-middleware.js, session.py

Shareable Snippets

Turn any formatted snippet into a public URL with syntax highlighting built in — a Pro feature, gated the same way the rest of the Snippet Vault is.

Real — built in
codeoptimizer.dev/?snippet=a6502772-…
const sum = (a, b) => a + b;

You've formatted 0 files this month. See what Pro unlocks.

5 of 20+ languages unlocked25%
AI suggestions, batch processing, and team libraries are Pro-only

14-day free trial · Cancel anytime · No credit card

API & INTEGRATIONS

Automate everything with the API.

Pro users get up to 50,000 API requests per month. Build formatting into your CI pipeline, deploy scripts, or internal tools.

GitHub Actions Official
curl -X POST https://api.codeoptimizer.dev/v1/format \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"language":"python","code":"def f(a,b): return a+b"}'

Stop formatting by hand. Start in 30 seconds.

Free tier is free forever. No card needed. No install required.

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Join 150,000+ developers already using Code Optimizer.