BigLeaf
Open a 5GB JSONL in seconds — without watching your editor eat 50GB of RAM
by KEISUKE OIKAWA
Description
Open a 5GB JSONL in seconds — without watching your editor eat 50GB of RAM. BigLeaf is a read-only viewer for large JSON, JSONL, and NDJSON files. It opens the file with memory mapping and a sparse index instead of loading the whole thing into RAM, so the first records appear almost immediately and memory stays flat as the file grows.…
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BigLeaf FAQ
What is BigLeaf?
Open a 5GB JSONL in seconds — without watching your editor eat 50GB of RAM. BigLeaf is a read-only viewer for large JSON, JSONL, and NDJSON files. It opens the file with memory mapping and a sparse index instead of loading the whole thing into RAM, so the first records appear almost immediately and memory stays flat as the file grows.
Do I need to download BigLeaf?
No. BigLeaf runs in your browser at key115.github.io, so there's nothing to install.
Who makes BigLeaf?
BigLeaf is made by KEISUKE OIKAWA.
What are the best BigLeaf alternatives?
Popular alternatives to BigLeaf include Speed Test by OpenSpeedTest™, HTTPie AI and MiniSim. See all BigLeaf alternatives