You asked about Collaboration
21 people built something like it. 21 are gone.
That is 100% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2022-04-21 | runhighlight.com | gone |
| 2021-01-25 | jel.app | gone |
| 2022-09-07 | proto.formation.tools | gone |
| 2013-01-01 | YCMedisas Medisas builds workflow & collaboration software for hospitals. · medisas.com | gone |
| 2019-06-01 | YCTandem Tandem is a virtual office for remote and distributed teams. · tandem.chat | gone |
| 2022-01-01 | YCOzone Figma for video · ozone.pro | gone |
| 2016-06-01 | YCUbiq Screen-sharing for enterprise conference rooms · goubiq.com | gone |
| 2019-06-01 | YCMuddy The multiplayer browser that knows you · feelmuddy.com | gone |
| 2020-06-01 | YCDuckly Video chat with real-time collaboration. · duckly.com | gone |
| 2021-01-01 | YCClay Figma for 3D design · clay3d.io | gone |
| 2006-06-01 | YCJamglue jamglue.com | gone |
| 2023-01-01 | YCSorted Instant SaaS management · sorted-lp.webflow.io | gone |
| 2019-01-01 | YCHerald A collaborative repository for user feedback. · heraldhq.com | gone |
| 2013-06-01 | YCFloobits Real-time collaborative editing in the browser with support for… · floobits.com | gone |
| 2011-01-01 | YCSiasto Siasto is a collaboration tool designed for SMBs who use Google Apps,… · siasto.com | gone |
| 2024-01-01 | Your team’s AI powered communication tool · atpatchwork.com | gone |
| 2014-01-01 | Virtual activities for remote teams · merrymint.co | gone |
| 2011-06-01 | YCDraft Making Draft. Super simple version control and collaboration for… · draftin.com | gone |
| 2012-01-01 | Github for designers. We automatically keep track of revisions of… · pixelapse.com | gone |
| 2018-01-01 | YCHaiku Collaboration tools for software companies · haikuforteams.com | gone |
| 2019-01-01 | YCBlitzIQ Note taking workspace for B2B sales teams · blitziq.com | gone |
How this compares
Y Combinator reports its own outcomes, including acquisitions. The other two are judged by asking the domain, so they are not measured the same way and are never averaged together.
The register re-probes every domain it holds. Some that answered last month stop answering. We send that list — what went quiet, and what it was — once a month. Nothing else.
How this was made. Show HN entries are every post from 2021 to 2023 with at least five points that linked to its own domain; code hosts and free hosting are excluded, because a repository outlives the effort behind it. Product Hunt entries needed 100 votes — a far higher bar, so they are the promoted top slice rather than a like-for-like sample. Both are judged by asking the domain whether it still answers: gone means it no longer resolves, refuses the connection, serves a parking page, or says plainly that it shut down. An HTTP error is not counted as gone — a server answering 404 is one somebody still pays for, and an audit of 25 gone-calls found two such sites alive with only a moved homepage. Y Combinator entries use the status YC publishes itself, which is why only those can say acquired. Squatted domains — a lapsed name now serving somebody else's site — are not detected, so these figures run slightly low.