Privacy
Oxygen by Project 236 · last updated 12 October 2026In short
Oxygen thinks on your device. Your account, your conversations and Oxygen's memory of you are stored online so that they follow you between devices. Nobody else can read them, unless you switch on Help improve Oxygen. Nothing is sold, and there are no advertisements.
What is stored
| What | Where | Why |
|---|---|---|
| Your email address and password | Firebase Authentication (Google). The password is kept only in a scrambled form that we cannot read. | To sign you in |
| Your conversations | Firebase Firestore (Google), under your account | So that they are there on every device |
| Oxygen's memory: what you told it about yourself, words you taught it, results of searches | Firebase Firestore (Google), under your account | So that Oxygen remembers |
| Your email address, the date you last used Oxygen, how many messages you have sent (a count only, never what they said) and whether sharing is on | Firebase Firestore (Google). The developer can read this. | To see who is testing Oxygen, and to give Oxygen Pro |
| Settings, and the knowledge packs you chose | On your device only | To keep your preferences and work offline |
Memory is kept strictly per account. One person's memory is never used to answer another person.
Help improve Oxygen
The newest model is offered as a beta. To use it you become a beta tester, which means this setting must be on (people with Oxygen Pro are excepted). The other models never need it. As a beta tester you mark each reply with a thumbs up or a thumbs down before writing again; those marks are part of the shared copy.
This is off unless you switch it on. While it is on, your conversations (with your email address) are copied to a list that the developer reads to find and fix Oxygen's mistakes. Switching it off removes those copies. Deleting a conversation removes its copy too.
What leaves your device when you use Oxygen
- Searches. When Oxygen looks something up, your browser asks Wikipedia and its sister sites, and Vikidia, for the words being searched. They see your IP address, as any website does.
- Weather. The name of the place is sent to Open-Meteo.
- "Is this site up?" Your browser tries to reach the site you named.
- Knowledge packs. Pack files are downloaded from GitHub Pages; GitHub sees your IP address. After that, answers from a pack are found on your device.
- Voice. If you use the microphone, your browser turns speech into text. In Chrome and Safari this is done by Google or Apple, so the sound is sent to them. Oxygen itself does not record or keep audio. Reading answers aloud happens on your device.
Projects made by Oxygen Code run inside a closed frame in your browser. Their forms send nothing anywhere.
What is not done
- There are no usage statistics or trackers. Oxygen does not count what you do.
- Your data is not sold or shared for advertising.
- Your conversations are not used to train a neural network. Oxygen is made of word lists and premade syntax; it is improved by hand.
Your choices
- Delete a conversation from the list of chats.
- Wipe Oxygen's memory under Settings → Memory.
- Delete your account under Settings → General. This removes your conversations, the memory and any shared copies, and then the account itself.
- Remove packs under Settings → Packs.
Children
Oxygen is not meant for children under 13 to use by themselves. If you are under 13, ask a parent or guardian before making an account.
Who is responsible
Oxygen is a personal project by Project 236. Questions and requests about your data can be sent by opening an issue at github.com/Siuozl/oxygen-packs. Please do not put private details in a public issue; say what you need and a way to reach you.
Data is processed by Google (Firebase) on its servers, which may be outside your country.
Changes
If this page changes in a way that matters, the date at the top changes with it.