Instant
Formatting is synchronous and immediate — no spinners, no loading states, no waiting.
About
Code formatter,
private & secure.
PureFormatter formats your code 100% in your browser. No upload, no server, no data collection. Your code never leaves your device.
Our Mission
We believe developer tooling should be fast, free, and private by default. PureFormatter is a suite of online code formatters that run entirely in your browser. There are no servers that ever see your code.
What We Build
PureFormatter provides instant formatting and syntax highlighting for the six most common web languages: JSON, HTML, CSS, JavaScript, SQL, and XML. Each formatter is purpose-built for its language.
Always Free
No premium tiers, no rate limits, no signup required — ever. Free forever.
Open Standards
We follow language specs and widely adopted style conventions across all 6 formatters.
Our Principles
- No server uploads — every byte stays on your device, processed by your CPU.
- No registration — open the tool, paste your code, format. That's it.
- Open standards — we follow language specs and widely adopted conventions.
- Speed — formatting should be instantaneous, always.
Roadmap
Here's what we're building next:
- TypeScript, YAML, GraphQL, and Markdown formatters
- Diff view — see exactly what changed after formatting
- Shareable URLs — encode your code in the URL to share snippets
- JSON Schema validation against a user-provided schema
Have a feature idea? Email us at support@pureformatter.com.