You asked about Developer Tools
464 people built something like it. 0 are gone.
That is 0% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2023-12-22 | heynote.com | still up |
| 2014-01-01 | YCAlgolia A developer-friendly and enterprise-grade search API. · algolia.com | still up |
| 2023-02-01 | trigger.dev | still up |
| 2022-11-03 | daily.dev | still up |
| 2022-06-21 | trywilco.com | still up |
| 2022-11-22 | apyhub.com | still up |
| 2022-11-25 | pequodllibres.com | still up |
| 2022-03-17 | knock.app | still up |
| 2022-11-14 | tailscan.com | still up |
| 2022-08-03 | adadot.com | still up |
| 2022-05-11 | creattie.com | still up |
| 2017-01-01 | YCRetool Build internal tools fast. · retool.com | still up |
| 2011-06-01 | Change the world to value skills over pedigree · hackerrank.com | still up |
| 2022-03-24 | microfounder.com | still up |
| 2015-06-01 | YCTeleport The Infrastructure Identity Company · goteleport.com | still up |
| 2022-04-25 | showwcase.com | still up |
| 2016-01-01 | Agentic Observability Platform for Mobile · luciq.ai | still up |
| 2022-04-07 | pipedream.com | still up |
| 2017-01-01 | YCBitrise Hosted Continuous Integration and Delivery for mobile apps · bitrise.io | still up |
| 2022-01-28 | adadot.com | still up |
| 2021-01-12 | vantage.sh | still up |
| 2022-06-22 | developers.miro.com | still up |
| 2011-06-01 | YCApollo Apollo helps engineering teams accelerate delivery · apollographql.com | still up |
| 2022-10-04 | debugmail.io | still up |
| 2022-08-30 | ethicalads.io | still up |
| 2022-07-19 | payloadcms.com | still up |
| 2020-01-01 | Robotic Process Automation and Document Processing Platform · electroneek.com | still up |
| 2015-01-01 | YCMezmo Observability platform to control all of your log data · mezmo.com | still up |
| 2018-06-01 | Build and grow your app business · revenuecat.com | still up |
| 2022-02-15 | yepcode.io | still up |
| 2022-04-21 | column.com | still up |
| 2022-06-21 | dendron.so | still up |
| 2020-01-01 | YCPostHog The single platform to analyze, test, observe, and deploy new features · posthog.com | still up |
| 2019-01-01 | YCAlpaca API-first stock and crypto brokerage platform · alpaca.markets | still up |
| 2011-06-01 | Engage customers through personalized omni-channel messaging · onesignal.com | still up |
| 2015-06-01 | YCBitmovin Powers OTT online video providers with video developer tools. · bitmovin.com | still up |
| 2022-01-15 | getdevkit.com | still up |
| 2015-06-01 | YCZeplin Deliver on the Promise of Design · zeplin.io | still up |
| 2022-04-09 | screendot.io | still up |
| 2016-01-01 | YCDaily Conversational Voice and Multimodal AI built with Open Source · daily.co | still up |
| 2020-06-01 | YCSupabase Build in a weekend. Scale to millions. · supabase.com | still up |
| 2019-06-01 | Customer data collection, safeguarding, & activation for healthcare · freshpaint.io | still up |
| 2021-01-22 | gitnews.tech | still up |
| 2021-01-01 | Tools & infra to build and scale high-quality blockchain applications. · quicknode.com | still up |
| 2022-02-15 | codementor.io | still up |
| 2022-01-23 | cheet.dev | still up |
| 2023-01-24 | infisical.com | still up |
| 2022-02-23 | xsgames.co | still up |
| 2017-01-01 | YCNanoNets Automatic Data Extraction · nanonets.com | still up |
| 2020-01-01 | YCCortex Cortex is the Internal Developer Portal eliminating “developer tax”… · cortex.io | still up |
| 2020-06-01 | YCRoboflow 🖼️ Give your software the sense of sight. · roboflow.com | still up |
| 2021-01-01 | YCAlokai Frontend Platform for eCommerce · alokai.com | still up |
| 2016-01-01 | YCMux Video infrastructure for developers · mux.com | still up |
| 2020-01-01 | YCAirbyte Context layer for production-grade AI agents · airbyte.com | still up |
| 2023-06-20 | inngest.com | still up |
| 2023-03-04 | talentsignals.com | still up |
| 2023-11-01 | anchor.dev | still up |
| 2021-06-01 | YCRootly AI-native on-call and incident response carefully crafted to help… · rootly.com | still up |
| 2021-06-01 | YCExa Web search rebuilt for LLMs · exa.ai | still up |
| 2022-01-01 | YCMintlify The intelligent knowledge platform · mintlify.com | still up |
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.
Older launches have had longer to die, so this slope is expected. A year that broke it would mean something is wrong with the checking.
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.