#FOSS

Live, measured metrics for the hashtag #FOSS 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 #foss

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 #foss — $2,449.80/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
405
Uses / 7 days
Mastodon
307
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~3.3/hr
Recent pace
Mastodon · last 40
1.9
Avg reactions / post
Mastodon · last 40
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mas.to (Mastodon public tags API) · fetched 2026-10-25 01:02 UTC
60
10-19
64
10-20
71
10-21
74
10-22
66
10-23
69
10-24
1
10-25

405 uses by 307 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.

Related hashtags

measured · mas.to (Mastodon public search API) · fetched 2026-10-25 01:02 UTC
#foss4g
8 uses · 8 accounts / 7d
#fossilfuels
116 uses · 86 accounts / 7d
#fossil
25 uses · 24 accounts / 7d
#foss4guk
0 uses · 0 accounts / 7d
#foss_de
6 uses · 5 accounts / 7d
#foss4gbe
0 uses · 0 accounts / 7d
#fossils
10 uses · 10 accounts / 7d
#fossilfuel
8 uses · 8 accounts / 7d
#foss4guk2026
1 uses · 1 accounts / 7d
#foss_gaming
0 uses · 0 accounts / 7d
#fosstodon
6 uses · 5 accounts / 7d
#foss4hg
0 uses · 0 accounts / 7d

Live pulse

measured · mas.to (Mastodon tag timeline) · fetched 2026-10-25 01:02 UTC

Everything below is measured over the latest 40 public posts (spanning ~12 hours).

Posting hours (UTC) — busiest: 15:00

00:0012:0023:00

Languages: English (33) · German (4) · Portuguese (1)

Avg boosts / post: 2.5

Top of the latest posts

  • we got to 11 out of 1,443 on day 1! 🥳 to keep me accountable and make sure I don't make any sneaky progress offline, here's the Figma file: https://www.figma.com/design/EZt7Rt0KKdzXVtga8pB2in/Pidgin-Emoji I want to do this on a regular bas

    Hylke Bons 🥜@[email protected]♥ 26↻ 62026-10-24 16:37 UTCView post →

  • 🔴 I'm live streaming on Twitch designing 1,443 #OpenSource emoji for some reason! trying to get to 25 followers to become affiliate. :) https://www.twitch.tv/planet_peanut_studio #gnome #design #icon #linux #pidgin #opensource #foss @pidgi

    Hylke Bons 🥜@[email protected]♥ 25↻ 102026-10-24 15:06 UTCView post →

  • RE: https://mastodon.social/@ryanprior/117496914743525428 "LLMs in #FOSS" is a contradiction. There's no such thing. "Using #AI to contribute to FOSS codebases" no you're not, you're putting slavery into it. That's a slave-labor-dependent c

    DNA schedule@[email protected]♥ 12↻ 112026-10-24 16:53 UTCView post →

What “foss” means

Wiktionary

foss

  • nounA pit, groove, cavity, or depression.
  • nounA carnivorous mammal endemic to Madagascar, Cryptoprocta ferox.
Full entry on Wiktionary →

#foss across platforms

every network with a public tag surface

Follow #foss 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/foss