Which JSON Schema version is supported?

A practical subset of draft-07: type/bsonType, properties, required, additionalProperties, items, enum, pattern, min/maxLength, min/maxItems, and minimum/maximum.

Can I paste a MongoDB $jsonSchema validator?

Yes. Wrap it as { "$jsonSchema": { ... } } exactly as you would for db.runCommand({ collMod }), or paste the schema object directly.

Is my document or schema uploaded?

No. Validation runs entirely in your browser.

NoSQL Validator

Validate a JSON document against a JSON Schema or MongoDB $jsonSchema

Document (JSON)

Schema (JSON Schema / $jsonSchema)

Build MongoDB Queries Without Memorizing Operators

Find filters and aggregate pipelines from visual rows — $eq, $in, $regex, $exists, and how AND/OR logic maps to $and and $or arrays.

Two SQL Reviews Every Query Should Pass

A security review and a performance review for SQL. Catch injection signatures before production, then strip the anti-patterns that make a query slow — without needing a live database.

Validate MongoDB Documents With $jsonSchema

Stop bad documents at the door. Build a JSON Schema or MongoDB $jsonSchema visually, validate documents against it, and apply it as a collection validator — all in your browser.