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Personal project // Web tool
Easy JSON Formatter
Also searched as JSON formatter, JSON beautifier and validator
A free online tool to format, beautify and validate JSON — fast, lightweight and private.
About Easy JSON Formatter
Paste JSON and get it pretty-printed instantly, or find out exactly where it's broken. Everything runs in the browser, so your data never leaves your machine.
Rojan Parajuli (also known as Anjesh Parajuli) built it in core (vanilla) JavaScript — no framework and no build step — which keeps it tiny and quick to load.
- Client
- Personal project
- Type
- Web tool
- Status
- Live
- Built with
- Vanilla JavaScript, HTML5, CSS3
- Developer
- Rojan Parajuli (Anjesh Parajuli)
Key features
Format & beautify
Pretty-print JSON with clean indentation.
Validate
Spot invalid JSON and see where it fails.
Private
Runs entirely in the browser — nothing is uploaded.
Lightweight
No framework, so the page loads almost instantly.
Tech stack & architecture
Tech stack
- Vanilla JavaScript
- HTML5
- CSS3
- Netlify
How it's built
- No framework
- Written in plain JavaScript using the browser's native JSON parser — no libraries, no bundler.
- Client-side only
- All formatting and validation happen in the browser, so it works fast and keeps data private.
Easy JSON Formatter FAQ
Who made Easy JSON Formatter?
Rojan Parajuli (also known as Anjesh Parajuli) made Easy JSON Formatter.
What is Easy JSON Formatter built with?
Core (vanilla) JavaScript, HTML and CSS, with no framework.
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