Bulk CSV to JSON Conversion: Scripts and CLI
Convert hundreds of CSV files to JSON in batch using shell scripts, Node.js pipelines, or Python glob loops. Includes error logging patterns.
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Tags: data, csv, automation
Bulk CSV to JSON Conversion: Scripts, CLI Tools, and Automation Tips Converting one CSV file is a one-liner. Converting 500 of them — with different schemas, varying encodings, and the expectation that failed conversions don't silently drop data — is an engineering problem. This guide covers the right approach at every scale: shell scripts for quick automation, Python for production pipelines, Node.js for parallel processing, and the CLI tools that make CSV manipulation feel like Unix. --- Shell One-Liner (Python + glob) For a quick batch conversion when you trust the data: This creates from , etc. The strips the suffix. For large directories, use to handle subdirectories: --- Miller (mlr): The CSV CLI Tool Miller () is a stream-processing tool designed for structured text. It handles…
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