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ndjson
ndjson-spec
Learning & Reference2018–2024
ndjson / ndjson-spec

ndjson-spec

Specification

10Distinct people
10Mentions
0Explicit recommenders
854GitHub stars
REPOSITORY AT A GLANCE

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What it is

Specification

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 8–Nov 15 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/15/2026, 3:30:57 AM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year10 dated mentions

Observed mentions: 2018-09-17 09:03:22 UTC to 2024-09-17 00:04:56 UTC.

02462018-01-01 00:00:00 UTC to 2019-01-01 00:00:00 UTC (exclusive): 1 mentions; 1 submissions, 0 comments20182019-01-01 00:00:00 UTC to 2020-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2020-01-01 00:00:00 UTC to 2021-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2021-01-01 00:00:00 UTC to 2022-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments20212022-01-01 00:00:00 UTC to 2023-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2023-01-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-01-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 6 mentions; 0 submissions, 6 comments2024

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20182018-01-01 00:00:00 UTC2019-01-01 00:00:00 UTC110
20192019-01-01 00:00:00 UTC2020-01-01 00:00:00 UTC000
20202020-01-01 00:00:00 UTC2021-01-01 00:00:00 UTC000
20212021-01-01 00:00:00 UTC2022-01-01 00:00:00 UTC202
20222022-01-01 00:00:00 UTC2023-01-01 00:00:00 UTC101
20232023-01-01 00:00:00 UTC2024-01-01 00:00:00 UTC000
20242024-01-01 00:00:00 UTC2025-01-01 00:00:00 UTC606

What Hacker News says

6 sources
I like that it mimics SQL queries/filtering which is straightforward. Typically I use something like JSONPath [1] (basically XPath for JSON) [2] or jq for this but having more options with other syntax and style is helpful. For streamed JSON like NDJSON [3] there are some nice filtering options [4] [1] https://en.wikipedia.org/wiki/JSONPath [2] https://datatracker.ietf.org/doc/html/rfc9535 [3] https://github.com/ndjson/ndjson-spec [4] https://github.com/mbostock/ndjson-cli?tab=readme-ov-file#fi...
In Show HN: JAQT – JavaScript Queries and Transformations
NDJSON, which actually has a rudimentary spec, says > Each JSON text MUST conform to the [RFC8259] standard and MUST be written to the stream followed by the newline character \n (0x0A). https://github.com/ndjson/ndjson-spec/ But yeah, these things should be merged and formalized. Being web-adjacent, how likely is that? What we're seeing here is the usual patterns: - the less-useful newer thing with slightly better marketing wins eyeballs even when it's technically inferior - an "ecosystem cornerstone" is someone's pet project from a prior employer and now neglected (https://github.com/ndjson/ndjson-spec/issues/35#issuecomment...) - web things don't get RFCs written because web people are disconnected from old school internet people - W3C adjacent people didn't get their RDF tuple world domination and industry standards don't matter to th
Read the rest
em - even MDN is switching to paywalls instead of being a useful resource
In Documentation for the JSON Lines text file format

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