JSON formatter and validator

Runs on your deviceFreeNo account

How to use JSON formatter

Paste JSON, format or minify, and copy the result. Invalid JSON shows a parse error with context. Prefer redacting tokens before sharing screenshots.

1

Open the tool

Use the workspace below — no signup is required.

2

Enter your input

Paste JSON, format or minify, and copy the result. Invalid JSON shows a parse error with context. Prefer redacting tokens before sharing screenshots.

3

Copy the result

Copy text or download a file when the tool offers an export. Local tools keep processing in this tab.

Direct share: Install Omnipus as an app on Android to share files and links into this tool from other apps.

About this tool

Pretty-print, minify, and validate JSON in your browser. Useful for API payloads, config files, and debugging without pasting secrets into a random online formatter you do not trust.

#json formatter#json validator#pretty print json#minify json

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Frequently Asked Questions

Do you store my JSON?

No. Parsing stays in the tab.

Large files?

Multi-megabyte JSON may stress the editor — split when possible.

Comments allowed?

Standard JSON does not allow comments. Strip them before parsing.

Sort keys?

Use format for readability; sorting depends on the controls shown in the tool.

Is JSON formatter completely free to use?

Yes. JSON formatter on Omnipus is free to use with no subscription paywall for the tool itself.

Are my files or data uploaded to any servers?

No. JSON formatter processes your input locally in this browser tab. Your files and text are not sent to Omnipus. Some tools download an engine or model file the first time you use them; that is a download, not an upload.

Can I use JSON formatter on my mobile phone?

Yes. Omnipus has touch-friendly controls and can be installed as an app. On Android you can also share files or links into tools from other apps.

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