Database & SQL Tools

MongoDB Query Formatter

Format a MongoDB query/filter document into clean, readable, properly indented JSON-like syntax.

Paste a MongoDB query or filter document below - this tool reformats it with clean, consistent indentation.

MongoDB Query/Filter Document

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This formats the query document you provide - it never connects to or runs anything against a real MongoDB server.

What Does This Tool Do?

It reformats a MongoDB query/filter document (JSON-like syntax, e.g. { status: "active", age: { $gt: 18 } }) with clean, consistent indentation, making nested operators easier to read.

Why Use This Tool?

MongoDB queries often nest operators several levels deep ($and, $or, comparison operators inside field objects) - a single-line query with several nested braces is hard to scan. Proper indentation makes the structure clear.

How to Use It

Paste your MongoDB query/filter document.
Click Format.
Copy the cleanly indented result.

Limitations

MongoDB query syntax is JSON-like but allows unquoted keys and single quotes, unlike strict JSON - this tool handles that common syntax, though it is not a full BSON-aware parser for every possible MongoDB-specific value type.

Frequently Asked Questions

The formatter is designed for filter documents in JSON-like syntax. Shell helpers such as ObjectId("...") or ISODate("...") may need to be written as strings or extended JSON.

No. The text is only reformatted in your browser.

Deeply nested operators such as $and, $or and $elemMatch are much easier to read and debug when each level is indented.