Privacy policy

Last update: 2 November 2026

Summary

Lull does not send the content of posts to a server. The AI model runs on your computer.
Lull does not collect analytics or telemetry.
Lull has no server and does not need an account.

Data	Purpose	Where it goes
Text, author handle, and image descriptions of posts on x.com	Check each post against your filters	Stays in your browser. The on-device model reads it.
Images of posts on x.com (when "Check images" is on)	Read the text in the images	Stays in your browser. The text of the last 500 images stays in memory only.
Your settings and filters	Apply your filters	Chrome sync storage. Chrome syncs it to your other computers if Chrome sync is on.
Daily counts and the last 30 filtered posts (author handle, first 100 characters, reasons)	Show the activity in the popup	Local storage on this computer. Chrome does not sync it.
Posts saved for evaluation (author handle, post and quoted text, image descriptions and recognized text, and your labels), only when you turn on "Save checked posts for evaluation" (off by default)	Label posts and measure the filters	Local storage on this computer, up to 1,000 posts. Chrome does not sync it. Lull sends these posts nowhere. You can export them to a file yourself.

Model weights. On first use, Lull downloads the AI models from Hugging Face (huggingface.co). The requests do not contain your data. The models stay in the browser cache.
Post images. When "Check images" is on, Lull downloads the images of posts from the X image server (pbs.twimg.com) to read their text. These are the same images that x.com shows to you.

Lull makes no other network requests.

Lull does not sell, transfer, or share your data. It does not use your data for advertising or for credit decisions.

To delete posts saved for evaluation, click "Delete all" on the label page. You can open this page from "Label saved posts" in the settings.

Remove the extension from Chrome to delete the settings, the counts, the list of filtered posts, the posts saved for evaluation, and the models.

Open an issue on GitHub. The source code is public, so you can check this policy against the code.

Lull is not affiliated with, endorsed by, or sponsored by X Corp.