If you work with APIs, backend services, logs, or configuration files, you've probably dealt with JSON that looks like this:
{"user":{"id":123,"name":"John","roles":["admin","developer"],"settings":{"notifications":true,"theme":"dark"}}}
It's valid JSON, but it's not particularly pleasant to read.
Usually, the workflow is something like:
- Copy the JSON.
- Open a JSON formatter.
- Paste it.
- Format or validate it.
- Copy the result back.
- Repeat the process whenever you receive another response.
I wanted to make that workflow simpler, so I built JSON Formatter Kit.
What is JSON Formatter Kit?
JSON Formatter Kit is a browser-based collection of tools for developers working with JSON.
You can try it here:
The idea is simple: provide commonly needed JSON utilities in one place without requiring an installation or account.
JSON Formatting
One of the most common use cases is making minified JSON readable.
Instead of working with:
{"name":"John","age":30,"skills":["JavaScript","TypeScript","C#"]}
you can format it into something easier to inspect:
{
"name": "John",
"age": 30,
"skills": [
"JavaScript",
"TypeScript",
"C#"
]
}
This is especially useful when debugging API responses or inspecting data from browser DevTools.
JSON Validation
Another common problem is receiving JSON that doesn't parse.
A missing comma, extra quotation mark, or incorrect structure can make debugging surprisingly frustrating.
A JSON validator can quickly tell you whether the input is valid and help identify the problem.
JSON Beautifier and Minifier
Sometimes you need the opposite of formatting.
For development and debugging, pretty-printed JSON is much easier to read.
For certain production or data-transfer scenarios, minified JSON can reduce unnecessary whitespace.
So I wanted the toolkit to support both workflows.
Why Make Another JSON Tool?
There are already many great JSON tools available online.
I wasn't trying to reinvent JSON.
The goal was to build something:
- Simple
- Fast
- Easy to use
- Developer-focused
- Accessible directly from the browser
- Useful without installing software
There are also plenty of additional features that could be added in the future.
What's Next?
I'm considering adding more developer utilities based on actual developer workflows rather than simply adding tools for the sake of having more tools.
Some possible ideas include:
- JSON comparison
- JSONPath utilities
- JSON ↔ CSV conversion
- JSON ↔ YAML conversion
- JSON schema utilities
- API response inspection
- More developer-focused formatting tools
I'd rather prioritize features people actually need.
I'd Love Your Feedback
If you work with JSON regularly, I'd be interested to hear:
What's the JSON-related task you find yourself doing repeatedly?
Is it formatting, validation, comparing API responses, converting formats, finding values inside large objects, or something else?
You can try the project here:
👉 https://jsonformatterkit.com/
If you have suggestions or find something that could be improved, I'd love to hear your feedback.
Top comments (2)
why payment details ?