MongoDB Playground (In-Browser) — Collections, CRUD, Aggregate, $lookup
Offline • localStorage • JSON-only • Beginner friendly
Ready ✅
📄 CSV: Run a query

Query Playground

Tip: Pick a collection + operation, then edit JSON. Use aggregate for pipelines and $lookup for joins.
Collection
Operation
Filter (JSON)
Payload (JSON)
Aggregate Pipeline (JSON array) — used only by aggregate
Docs: 0
Collections: 0
Last ms: 0
Ready.
Saved in localStorage on this device.

Notes

Reserved (optional)
This panel is intentionally kept minimal in VS Code style. Your main explorer + history is on the left sidebar.
Recommended flow:
  1. Pick a demo chip
  2. Run
  3. Export DB JSON if you want to save/share
Mongo Playground UTF-8 JSON Ready localStorage