Suggest an editImprove this articleRefine the answer for “What does a BSON document example look like?”. Your changes go to moderation before they’re published.Approval requiredContentWhat you’re changing🇺🇸EN🇺🇦UAPreviewTitle (EN)Short answer (EN)BSON is a binary format, so a "real" document in it is a set of bytes, but logically it corresponds to a JSON structure with extra types like `ObjectId` and `ISODate` that plain JSON doesn't have, and it natively supports arrays and nested objects. **Key point:** inside MongoDB the object is stored in binary BSON form, but for reading and display it's usually shown as JSON.Shown above the full answer for quick recall.Answer (EN)ImageBSON is a binary format, so a "real" document in it looks like a set of bytes. But logically it corresponds to a JSON structure. It's easier to show an example in the JSON form that BSON represents internally: ```json { "_id": ObjectId("6512bd43d9caa6e02c990b0a"), "name": "Alex", "age": 25, "isActive": true, "skills": ["MongoDB", "Node.js"], "createdAt": ISODate("2025-10-22T10:00:00Z"), "profile": { "city": "Berlin", "status": "developer" } } ``` ### What matters here - `ObjectId` and `ISODate` are special BSON types (JSON has no equivalent) - arrays and nested objects are supported natively - the document is stored as **key-value** pairs and stays a coherent structure Inside MongoDB this object is stored in binary BSON form, but for reading and display it's usually shown as JSON.For the reviewerNote to the moderator (optional)Visible only to the moderator. Helps review go faster.