MongoDB ObjectID Generator
Generate and decode 12-byte BSON ObjectIDs.
MongoDB ObjectIDs
12-byte BSON ObjectId per the MongoDB spec: 4-byte timestamp (seconds since epoch) + 5-byte random + 3-byte counter. Roughly time-ordered, which makes them sortable but exposes creation time.
About
Generates ObjectIDs (24-character hex) per the MongoDB BSON spec. Also decodes existing ObjectIDs to show the embedded timestamp, machine random, and counter parts.
How to use
- Generate fresh IDs.
- Or paste an existing ObjectID to decode.
FAQ
Are these valid Mongo IDs?+
Yes, structurally. Mongo accepts any 24-character hex as ObjectID. The timestamp portion is the only meaningful part for sorting.