JSON to Parquet
Convert JSON files to Parquet format
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Accepted formats: .json • Max size: 25MB
About JSON to Parquet Converter
1What is it?
Convert JSON files to Parquet format for efficient storage and analytics. Supports both JSON arrays and line-delimited JSON (NDJSON). Automatically infers schema from your JSON structure, including nested objects and arrays. Ideal for preparing API responses or log files for data warehousing and big data processing.
2Use Cases
- Convert API response dumps to Parquet for analytics
- Prepare JSON log files for data lake ingestion
- Optimize JSON data exports for Spark processing
- Transform NDJSON streams to columnar format
3Examples
API Data
Input
api_responses.json
Output
api_responses.parquet
Log Compression
Input
server_logs.ndjson (100MB)
Output
server_logs.parquet (12MB)
?Frequently Asked Questions
Does it preserve nested JSON structure?
Yes! Parquet supports complex nested types (structs, arrays, maps). Your nested JSON objects become Parquet struct columns, and JSON arrays become list columns, preserving the full structure.
What's the difference between JSON and NDJSON?
Regular JSON is typically a single array of objects: [{...}, {...}]. NDJSON (newline-delimited) has one JSON object per line, making it easier to stream and process large files. This tool auto-detects both formats.