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ChromeChat
Local AI chat via Chrome's built-in Prompt API
ChromeChat is a local AI chat built on Chrome's built-in Prompt API — it runs Gemini Nano directly in your browser. 100% offline after setup No API keys or subscriptions Zero data sent to external servers Chat history stored locally Custom AI name, personality & system prompt Import/export your conversations Free forever Requires Chrome 148+, a compatible GPU (4GB+ VRAM), and ~4 GB free storage. One-time setup
Hey
ChromeChat is built entirely on Chrome's Prompt API,
Google's built-in interface that runs Gemini Nano locally
in the browser.
The Prompt API only became an official Origin Trial in late
2025, so the ecosystem is still tiny. ChromeChat is one of
the first full chat interfaces built on top of it.
The catch: you need Chrome 148+, a GPU with 4GB+ VRAM and
~4GB free. But once set up, it work offlin
Would love feedback on:
Is the setup flow clear enough?
What would you build next?
Source: https://github.com/nay-cat/Chrom...
About ChromeChat on Product Hunt
“Local AI chat via Chrome's built-in Prompt API ”
ChromeChat was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #44 on the daily leaderboard. ChromeChat is a local AI chat built on Chrome's built-in Prompt API — it runs Gemini Nano directly in your browser. 100% offline after setup No API keys or subscriptions Zero data sent to external servers Chat history stored locally Custom AI name, personality & system prompt Import/export your conversations Free forever Requires Chrome 148+, a compatible GPU (4GB+ VRAM), and ~4 GB free storage. One-time setup
On the analytics side, ChromeChat competes within Productivity, Open Source, Artificial Intelligence and GitHub — topics that collectively have 1.2M followers on Product Hunt. The dashboard above tracks how ChromeChat performed against the three products that launched closest to it on the same day.
Who hunted ChromeChat?
ChromeChat was hunted by lenavon. 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.
For a complete overview of ChromeChat including community comment highlights and product details, visit the product overview.
lenavon