About JSONStudio (JSON Studio)
JSONStudio is a free, privacy-first JSON toolkit at jsonstudio.online. We combine professional-grade tools with educational content so developers and analysts can work with JSON data faster and more securely.
Why JSONStudio exists
Working with JSON day-to-day means constantly pasting data into browser tabs, hoping the tool on the other end isn't logging your API tokens or internal payloads. JSONStudio was built to solve that directly: every operation—formatting, validation, conversion—runs inside your browser with zero server involvement.
The core promise is simple: the tool is free, your data stays private, and there are no accounts or sign-ups required.
How it works
JSONStudio is a fully static web application. When you paste JSON into the editor, nothing is transmitted over the network. Parsing, formatting, validation, and conversion all happen using JavaScript running locally in your browser tab.
This architecture means the tool works offline once loaded, and it is fundamentally incapable of leaking your data — there is no backend to send it to.
What the tool does
The core features are a JSON viewer with tree, table, and code views; a formatter with configurable indentation; a real-time validator with line-level error highlighting; and converters to TypeScript, CSV, YAML, XML, Go, Kotlin, Zod schema, and more.
The blog covers common JSON questions, error fixes, and format comparisons to help developers at all levels understand the data they're working with.
Feedback and contact
Bugs, suggestions, and questions can be sent to support@jsonstudio.online. Responses are best-effort; this is an independent project, not a funded company with a support team.