Dropstone is the first multiplayer AI workspace. v3.0.5 adds Share Chat: send a link to code with humans & agents in real-time. Features infinite context (D3 Engine), persistent memory & background swarms. Built on original research, not a wrapper.
Hi Product Hunt! 👋 I’m one of the makers at Blankline (the research lab behind Dropstone).
We noticed a critical problem with tools like Cursor and Claude Code: They are single-player. You code alone. If you get stuck, you paste snippets into Slack. If you're a founder hitting the "70% wall," you're stranded.
Dropstone 3 is the first multiplayer AI workspace. With today's release, we are launching Share Chat:
🔗 One Link: Generate a URL for your local workspace.
⚡ Instant Join: A senior dev, designer, or client joins instantly.
🧠 Shared Brain: Everyone shares the same AI context and live preview.
This is not a wrapper. We are a research lab building proprietary infrastructure:
D3 Engine: Virtualizes context (50:1 compression) for infinite memory.
Horizon Mode: Background agent swarms that fix bugs asynchronously while you sleep.
I love support for local models! Thanks for making self-hosting possible! Can you talk a little more about the current approach to security (and recommendations) when sharing a local model?
Hi are there any review copies/license available for checking out agent swarms, currently free version have only linear programming feature.
Congrats on the launch! 🎉
The multiplayer AI code editor concept is interesting - real-time collaboration with AI assistance could be a game changer for remote teams.
How does the Share Chat feature work exactly? Does it maintain context across the entire coding session?
Building LaunchStack (SaaS boilerplate) and considering how collaborative tools like this could speed up the development process.
Good luck with the launch! 🚀
The “linearity barrier” framing is really interesting, especially with Horizon Mode and trajectory search. In early usage, what gave developers the biggest confidence boost, fewer hallucinated changes, faster debugging, or just better code quality overall?
I have looking for a collaborative ide like this. We can the PM and QA to collaborate with Dev directly in IDE and change 2week sprints to 1 day or 1 hour sprints
Whoa, Dropstone looks incredible! 10,000 agents in one tab is mind-blowing. Super curious how Semantic Entropy Tracking handles ambiguity in edge cases. Congrats on the launch!
Local model support is interesting. How does it perform with ollama only? Does all features work with local mode? Lets say i want to convert a mini app in react to nextjs code. How Would it perform nxt to doing it in claude or codex with opus 4.6? Do you have any head to head videos like that? There are alot of gd arguments on the landing page But at the end of the day. How it competes is what matters.
The Divergent Trajectory Search concept is wild - simulating 10,000+ futures to find optimal paths is such a different approach from linear AI coding assistants. The fact that Horizon Mode can fix bugs asynchronously while I sleep is honestly game-changing. Quick question: how does Share Chat handle conflicts when multiple people are editing with different AI contexts? Does the D3 Engine's context compression help merge those different trajectories, or do you surface conflicts to let the team decide?
Share Chat is what caught my eye. Saw Aleksandr's question about context drift and the chronological serialization answer makes sense for keeping things consistent. But I'm wondering about the opposite case - in pair programming you sometimes want to explore two competing approaches before picking one. With a single shared timeline, would you need separate chat sessions for each idea and merge the winner back? Or is there a way to branch the context?
Trend based research and the engage feature make a great loop. If SuperX shows the why behind each inspiration pick and timing suggestion, it'll stay reliable even when X shifts the rules. A simple decision log makes it stick.
About Dropstone 3 on Product Hunt
“The first multiplayer AI code editor. Now with Share Chat.”
Dropstone 3 launched on Product Hunt on February 9th, 2026 and earned 204 upvotes and 18 comments, placing #6 on the daily leaderboard. Dropstone is the first multiplayer AI workspace. v3.0.5 adds Share Chat: send a link to code with humans & agents in real-time. Features infinite context (D3 Engine), persistent memory & background swarms. Built on original research, not a wrapper.
Dropstone 3 was featured in Productivity (649.7k followers), Developer Tools (511k followers) and Artificial Intelligence (466.2k followers) on Product Hunt. Together, these topics include over 279k products, making this a competitive space to launch in.
Who hunted Dropstone 3?
Dropstone 3 was hunted by Santosh Arron. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Santosh Arron
Hi Product Hunt! 👋 I’m one of the makers at Blankline (the research lab behind Dropstone).
We noticed a critical problem with tools like Cursor and Claude Code: They are single-player. You code alone. If you get stuck, you paste snippets into Slack. If you're a founder hitting the "70% wall," you're stranded.
Dropstone 3 is the first multiplayer AI workspace. With today's release, we are launching Share Chat:
🔗 One Link: Generate a URL for your local workspace.
⚡ Instant Join: A senior dev, designer, or client joins instantly.
🧠 Shared Brain: Everyone shares the same AI context and live preview.
This is not a wrapper. We are a research lab building proprietary infrastructure:
D3 Engine: Virtualizes context (50:1 compression) for infinite memory.
Horizon Mode: Background agent swarms that fix bugs asynchronously while you sleep.
Research: We publish our papers openly (check blankline.org/research).
We’re live in the comments to answer questions about our compression architecture or the "70% wall." Let us know what you think! 👇