Dev Tools · 1h ago
Split 10GB JSON files in seconds without RAM overload
A developer shares a technique to split massive JSON arrays by scanning raw bytes instead of parsing. Using a state machine that tracks nesting depth and string boundaries, the method avoids memory allocation. The approach works with any language and can handle files up to tens of gigabytes.
Meridian48 take
The technique is clever but not new; similar streaming parsers exist. Still, it's a practical reminder that sometimes the simplest solution is best.
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json-processingmemory-efficiency