Flatten NestedPreview TableDownload Excel
Paste a JSON array of objects

Frequently Asked Questions

What JSON format is supported?
An array of objects works best: [{"key":"value"}, ...]. Single objects are also supported. Nested objects are automatically flattened using dot notation.
Is my data safe?
Yes. All processing happens in your browser. No data is sent to any server.
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About JSON to Excel

When you need this task done in seconds, JSON to Excel delivers a clean, focused interface without the friction of a generic tool. Built to be the kind of tool you bookmark and use weekly: no surprises between visits, no degraded free tier, and a UI that gets out of the way. It is one of about a hundred utility tools that share the same philosophy: do one thing, do it well, get out of your way.

When you'd reach for JSON to Excel

  • You need to handle a one-off task right before a meeting and don't have time to install anything.

    Anyone working remotely on a borrowed or restricted machine.

    Open the page, get the result, paste it into your doc — under a minute.

  • You're hitting the daily limit of a paid SaaS and need a backup option for a single quick job.

    Marketers and ops people whose primary tool is metered.

    Stay productive without burning credits.

  • You're cleaning up a folder of files that accumulated over a project and need to standardize them.

    Designers, writers, and developers wrapping up deliverables.

    Drop each file in, copy the output, move on.

  • You're on a public or shared machine and don't want to leave traces of what you're working on.

    Travelers, contractors, anyone working from a friend's computer.

    Nothing is uploaded, nothing persists if you're not signed in.

Frequently asked about JSON to Excel

Are my files uploaded to a server when I use JSON to Excel?
JSON to Excel processes everything in your browser using local APIs. Your files never leave your device.
What browsers does JSON to Excel support?
Every modern browser released in the last three years: Chrome, Firefox, Safari, Edge, Brave, Opera.
Can I use JSON to Excel commercially?
Yes. The output of JSON to Excel belongs entirely to you, with no licensing restrictions.
Do I need to create an account to use JSON to Excel?
No. JSON to Excel works without any signup. We only ask for an email if you decide to subscribe to a paid plan.
Is JSON to Excel really free?
Yes — JSON to Excel is free for unlimited personal use, with no account required and no watermark on the output.