What this site does
- Serves static files (HTML, CSS, JavaScript). That's all this server does.
- The language model runs locally via WebGPU in your browser. All inference happens on your device.
- Chat history is held only in the page's memory (a JavaScript variable). It is never written to disk, never sent to us, and is destroyed when you close or reload the tab. The only time any of it leaves your device is if you switch web search on, which sends your message text to the search provider — see below.
What this site does not do
- No accounts, no forms, no cookies, no localStorage of your conversations.
- No analytics, tracking pixels, fingerprinting, or advertising.
- No server-side logging of message content — messages never reach the server in the first place.
- No logs of any kind on this server. The web server writes no access log and no error log, and network-level flow logging is switched off, so nothing about your visit is recorded here. Cloudflare, which sits in front of this site to protect it, keeps its own edge records — that is described below.
- The AI library is served from this domain, not from a third-party CDN.
Optional web search
The chat page has a Web search switch that is off by default. While it is off, nothing you type leaves your device.
If you switch it on, your browser sends your message text as a search query directly to the search providers (DuckDuckGo and Wikipedia) so it can show the model some context. Those requests go from your browser to those services — they do not pass through this site, and we never see them, store them, or receive any copy. Naturally, the search provider itself does see the query and your IP address, under its own privacy policy. If that matters to you, leave the switch off.
Content filter
The chat page checks messages against a list of blocked patterns in your browser, and stops the conversation if one matches. This check runs entirely on your device: the flagged text is not reported, transmitted, or recorded anywhere. Nothing is logged — you simply need to press Clear and start a new conversation.
What is stored on your device
Nothing is stored on your device until you press Download & start. When you do, your browser downloads the model you selected and keeps it in its own cache storage — roughly 400 MB to 1.5 GB, depending on the model. That is the only thing this site puts on your device, and it exists so that later visits do not have to download it again. It contains no personal data: it is the model itself, identical for every visitor.
You can remove it at any time by clearing your browser's cache or site data for this domain. Your conversations are never part of it.
Third-party downloads (transparency)
The AI library itself is served from this domain. The model weights — between roughly 400 MB and 1.5 GB, depending on which model you choose — are downloaded by your browser from the Hugging Face CDN, because serving files that large ourselves is not practical. Like any web download, Hugging Face sees your IP address for the purpose of delivering those files, exactly as when you load any website. We are not involved in, and receive nothing from, those requests. The weights are then cached by your own browser, so later visits need no download at all.
This site also sits behind Cloudflare, which protects it from attack. Cloudflare passes requests through to our server and keeps its own edge records under its own privacy policy. We do not use its analytics, and we receive no visitor data from it.
Data protection
We collect nothing, store nothing, and log nothing. There is no database, no account, no cookie, no analytics, and no log file. Nothing you type is transmitted to us, and your IP address is never written down on our server. There is simply nothing here to disclose, sell, hand over, or lose in a breach.
To the extent any personal data is processed at all in serving you these pages — the technical exchange of packets that delivering any website requires — the purpose is simply to deliver and secure this site, and the lawful basis is our legitimate interests in doing so. No data is retained for that purpose, because nothing is written down.
Being candid about the edges: delivering any website means your browser exchanges packets with a server, and the model weights and optional web search involve the third parties named above. Those are ordinary, unavoidable parts of loading a web page, and we have removed every one that was avoidable. If you want the strictest possible setup, load the page once, leave web search off, and everything after that runs on your device alone.
Who operates this site
This site is operated from the United Kingdom by the operator of the koas.uk domain, who is responsible for the pages served here.
No contact address is published, and none is needed for data requests: the usual rights — access, correction, export, deletion and objection — apply to data held about you, and this site holds none. There is no account, no database and no log file, so there is no record here to retrieve, amend or erase, and nothing that could identify you as a visitor. To erase the conversation itself, press Clear or close the tab.
If you are unhappy with how this site handles personal data, you have the right to complain to the UK's supervisory authority, the Information Commissioner's Office, at ico.org.uk.
Models and software
The models that run on your device carry their own licences and use restrictions, which are passed on to you. See the licences and attribution page for the full terms covering Gemma, Llama and SmolLM2, and for the licence of the software that runs them.
Your controls
- Press Clear or close the tab to wipe the chat instantly.
- Leave Web search off to keep everything on your device.
- Clear your browser cache to remove the downloaded model files from your device.
Last updated: 28 July 2026.