#JSON

Live, measured metrics for the hashtag #JSON from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.

hashtag.org network · sponsored

Own #json

This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.

$2,449.80/ year · 4-character #name
Claim #json — $2,449.80/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
13
Uses / 7 days
Mastodon
10
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0.1/hr
Recent pace
Mastodon · last 40
0.2
Avg reactions / post
Mastodon · last 40
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · fosstodon.org (Mastodon public tags API) · fetched 2026-10-30 16:10 UTC
0
10-24
2
10-25
1
10-26
3
10-27
3
10-28
4
10-29
0
10-30

13 uses by 10 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.

Related hashtags

measured · fosstodon.org (Mastodon public search API) · fetched 2026-10-30 16:10 UTC
#json_rpc
1 uses · 1 accounts / 7d
#json_schema
0 uses · 0 accounts / 7d
#jsonschema
6 uses · 5 accounts / 7d
#jsonld
1 uses · 1 accounts / 7d
#jsonrpc
1 uses · 1 accounts / 7d
#jsonfeed
1 uses · 1 accounts / 7d
#jsonпарсеры
0 uses · 0 accounts / 7d
#strict_json
0 uses · 0 accounts / 7d
#обработка_json
0 uses · 0 accounts / 7d
#jsonapiroleaccess
0 uses · 0 accounts / 7d
#jsonata
0 uses · 0 accounts / 7d
#wal2json
0 uses · 0 accounts / 7d

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-10-30 16:10 UTC

Everything below is measured over the latest 40 public posts (spanning ~595 hours).

Posting hours (UTC) — busiest: 06:00

00:0012:0023:00

Languages: English (26) · Russian (8) · Italian (3) · German (1) · Hungarian (1)

Avg boosts / post: 0.6

Top of the latest posts

  • Better HTTP/1 connection reuse https://go.dev/blog/http-connection-reuse #GoLang #HTTP #JSON

    Blain Smith@blainsmith♥ 3↻ 02026-10-14 23:21 UTCView post →

  • 📢🦆 #DuckDB 2.0.0 has been released! This has *lots* of new features. The ones I’m most excited for are the “Quack” client-server protocol, and the VARIANT type, which shreds and stores semi-structured #JSON data efficiently in binary form

    James Gilbert@[email protected]♥ 1↻ 22026-10-21 14:18 UTCView post →

  • I'm releasing the first stable version of fennel-json, my #JSON library written completely in #Fennel #lisp. In this release: - test coverage for reading and writing JSON - fixes for issues uncovered during testing - tests run automatically

    DNA schedule@[email protected]♥ 1↻ 02026-10-14 20:43 UTCView post →

What “json” means

Wikipedia

JSON is an open standard file format and data interchange format that uses human-readable text to store and transmit data objects consisting of name–value pairs and arrays. It is a commonly used data format with diverse uses in electronic data interchange, including that of web applications with servers.

“JSON” on Wikipedia (CC BY-SA) →

#json across platforms

every network with a public tag surface

Follow #json straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.

X (Twitter) ↗Instagram ↗TikTok ↗Facebook ↗LinkedIn ↗YouTube ↗Threads ↗Bluesky ↗Mastodon ↗Reddit ↗Pinterest ↗Tumblr ↗

Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/json