Built by Developers, for Developers
There's a version of this story you've probably lived. You're deep in a debugging session. You need a JSON formatter. The first result has ads. The second wants a login. The third breaks on nested objects.
Online Code Formatter exists because that experience is unnecessary.
Our Core Principles
No Friction
No login. No email. No paywall. Open the page and get to work immediately.
No Data Collection
Your data never leaves your browser. All processing is 100% client-side JavaScript.
No Compromise
Built for real work. Handles large files, edge cases, and complex nesting correctly.
Why Build Another Tool Site?
Most existing online tools weren't built for professional workflows:
- Ad-heavy interfaces that slow you down
- Forced account creation for basic tasks
- Unmaintained tools that break silently
- Server-side processing (security risk)
- Fragmented ecosystem (one site per tool)
We solved all of these. One site. 30+ tools. No ads. No servers.
What's Inside the Suite
JSON, XML, YAML, SQL. Make messy code readable with proper indentation.
Check syntax against specs. JSON, XML, Regex, JWT, UUID.
Reshape data. Mustache rendering, Timezone conversion, Mock data.
Switch formats. Base64, CSV to JSON, Markdown to HTML, Env to JSON.
Diff anything. Compare JSON objects, text files, or data sets side-by-side.
Privacy by Architecture
Privacy isn't a feature we added. It's a constraint we built around.
Every tool processes input locally in your browser. There is no backend API receiving your data. There is no database. This matters for tools like:
- JWT Validator (Auth tokens)
- ENV to JSON (Secrets/Keys)
- SQL Formatter (Db Schema)
- JSON Masker (PII data)
None of this data should ever leave your machine, and with Online Code Formatter, it doesn't.
What's Coming Next
We are actively building. Based on user requests, here is what we are exploring:
Have a request? Use the feedback link in the footer.
Project FAQ
Who built this?
Developers frustrated by ad-heavy, unsafe tools. We wanted a clean, safe alternative.
How is it free?
Client-side processing means zero server costs for data handling. We pass those savings to you.
Can I use it for commercial work?
Yes. Use the outputs freely in any personal or enterprise project.
Is it open source?
Contact us via the feedback page for repo details and contribution guidelines.