404tomb
Digital tombstones for dead startups
404tomb launched on April 20, 2025 with 388 votes, #55 of 7,818 launches that month and more than 99% of that year's launches. The site was still online in September 2026, 1 year on.
In plain words
404tomb is a web app that serves as a digital graveyard for defunct startups. It creates memorial pages for failed companies, allowing users to document and browse monuments to unsuccessful ventures. The platform combines humor with a record of internet history, offering an entertaining way to acknowledge startup failures without judgment. It appeals to entrepreneurs, tech enthusiasts, and anyone interested in learning from business mishaps through a lighthearted lens.
written from the facts on this page · September 2026
From the sources
A digital graveyard for forgotten startups, where cold ambitions sleep and lost code lies in frost—no mourning, just monuments to the internet's silent failures.
Discover the ultimate AI graveyard, a curated collection of 597 discontinued AI products and failed AI startups. Explore the stories behind dead AI projects and learn from their digital tombstones.
Welcome to the AI graveyard , where dead AI products find their eternal rest. This curated collection documents 597 discontinued AI projects , failed AI startups, and abandoned artificial intelligence ventures that once promised to change the world. Unlike the rest of our archive (community-submitted, not independently verified), every entry below has been fact-checked against public reporting — real dates, real numbers, real reasons, with sources. Swish.ai (originally DeepCoding.ai) was an enterprise AI platform that provided ... Ghost Autonomy (formerly Ghost Locomotion) built autonomous-driving software for... Beam was a UK-based deep-technology company focused on offshore wind…from 404tomb.com
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