JSON to BSON Converter
Convert JSON to Binary JSON (BSON) format for MongoDB. Serialize JSON objects to efficient BSON encoding with proper type preservation. Perfect for database imports, testing, and data processing workflows.
Recommended Settings
For MongoDB
- •Use hexadecimal format for mongorestore compatibility
- •Ensure JSON uses proper MongoDB types
- •Test with small datasets first
Data Types
- •ISO date strings convert to BSON Dates
- •Standard JSON types fully supported
- •Avoid undefined and function values
Pro Tips
- •Choose hex format for MongoDB tools compatibility
- •Use Base64 for compact data transfer
- •All conversion happens client-side for privacy
Most Popular
Most users export to hexadecimal format for MongoDB import
When to Use This Tool
Convert JSON data to BSON format for importing into MongoDB databases. Generate BSON-encoded data that can be directly used with MongoDB's tools like mongorestore or bulk import operations.
Recommended: Database import
Create BSON test data for benchmarking MongoDB applications. BSON's binary format is more efficient for storage and traversal than text-based JSON, making it ideal for performance testing.
Recommended: Testing
Serialize JSON objects to BSON for efficient data storage or transmission. BSON preserves data types better than JSON and includes type information that prevents data loss during conversion.
Recommended: Data processing
How It Works
Paste your JSON data
Tool parses and validates JSON
Serializes to BSON binary format
Encodes output as hex or base64
100% Private
Files never leave your device. All processing happens locally in your browser.
Lightning Fast
Powered by Client-side JavaScript with MongoDB BSON library for optimal performance on modern browsers.
Open Source
Built with verified, open-source libraries. Fully transparent.
Frequently Asked Questions
What is BSON?
BSON (Binary JSON) is a binary-encoded serialization format used primarily by MongoDB. It extends JSON with additional data types like Date, Binary, ObjectId, and Decimal128, making it more efficient for storage and data traversal than text-based JSON.
What format is the output?
You can choose between hexadecimal or Base64-encoded output formats. Hexadecimal is the standard format used by MongoDB's bsondump tool and is human-readable. Base64 is more compact and commonly used for data transfer.
Are all JSON values supported?
Standard JSON types (strings, numbers, booleans, arrays, objects, null) are fully supported. However, some JavaScript-specific values like undefined or functions cannot be serialized to BSON and will cause errors.
How do dates work in BSON?
To include dates in your BSON output, use ISO 8601 date strings in your JSON (e.g., "2025-01-15T10:30:00Z"). The BSON library will automatically convert these to BSON Date objects during serialization.
Is my data safe?
Absolutely! All conversion happens entirely in your browser using client-side JavaScript. No data is ever sent to any server, ensuring complete privacy and security for your JSON data.