Notes from the team.
Engineering deep-dives, release notes, and stories from people moving JSON at the size you don't talk about at parties.
How we parse JSON at 2 GB/s — the boring tricks that matter.
Branchless structural detection, SIMD masks, two-stage validation, and a tape that fits in cache. None of it is novel on its own; the win is in stacking five "mehs" until they multiply.
How to open a large JSON file (when your editor gives up).
Why VS Code chokes, what jq is good at, and the tiered playbook for opening a multi-gigabyte JSON file without watching your fan spin for an hour.
JSONBolt vs Dadroit vs JSON Crack vs JSON Hero.
An opinionated JSON viewer comparison from the team that ships one of the four. Real tests on 100 MB, 2 GB, search and CSV export. We'd rather you pick the right tool than the loudest one.
jq alternatives for massive JSON files.
Five tools — jaq, jet, gron, fx, jb — on the same 5 GB ndjson. Where jq runs out of road, and when it's still the right call.
Feeding large JSON to an LLM without blowing the context window.
JSON is verbose, LLMs charge by the token. From 487 MB raw to 18 k tokens and five cents — the boring compaction stack that gets you there.
Tailing NDJSON / JSONL log files in real time.
tail -f works for syslog and breaks the moment a line is JSON. Five tools for the on-call engineer who still wants to read what's happening.
JSON to CSV from a large file.
Pandas won't fit it. Excel won't either. Stream a subtree out by JSONPath, project the columns, filter at the parser. The Pandas-can't-fit-it playbook.
Why we built a JSON viewer in 2026.
Every editor has a JSON mode. None of them open the file we needed to look at. So we wrote one — for the file your editor refused.
jsonbolt 1.4 — Apple Silicon native, half the RAM.
Native ARM build for M-series. Minimap. JSONPath autocomplete. And a memory regression we caught the hard way.
The boring tricks behind 2 GB/s.
Branchless tape, structural masks, two-stage validation, mmap'd indices. The unglamorous stack that adds up to a half-second gigabyte.