NoSQL Validator
Validate a JSON document against a JSON Schema or MongoDB $jsonSchema
About this tool
Validate JSON documents against JSON Schema or MongoDB $jsonSchema. Clear path-precise errors for types, required fields, patterns and ranges. Free online, in-browser. NoSQL Validator runs in the browser on DevTools. There is no signup, and your input stays on this device unless the tool explicitly performs a live network lookup.
What this tool does not do
- NoSQL Validator is a free in-browser utility, not a hosted API. It does not keep server-side history and is not a substitute for production verification in your own stack.
How do I use this tool?
How do I use NoSQL Validator?
Open NoSQL Validator, enter or paste your input, and copy the result. The page works without an account.
Related guides
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.
Related tools
Base64 Toolbox
Professional Base64 workspace for text, files and images with Base64URL, MIME, Data URI, strict validation, image preview and ready-to-use snippets.
C# to VB.NET Converter
Convert a subset of C# — classes, methods, variables, loops — into VB.NET
CSV Data Viewer
Paste CSV and browse rows in a sortable table with delimiter detection
CSV to Chart
Paste or upload CSV data and generate bar, line, pie, or doughnut charts. Export as PNG.
CSV to JSON Converter
Paste CSV data and convert it to pretty-printed JSON instantly — supports custom delimiters, header row toggling, and value trimming.
CSV to Markdown Converter
Convert CSV to a Markdown table and Markdown tables back to CSV