Privacy Policy

When you activate Loom on a video, the extension reads the subtitle text from the tracks the site already serves to your browser, deduplicates it, and sends the unique subtitle strings to api.loom.nerv-analytic.ai for romanization (e.g. “東京” → “Tōkyō”) and per-character annotation (e.g. furigana, Pinyin). Each video produces roughly one request per subtitle track when you activate Loom; we do not send anything during playback after that.

The request carries only the subtitle text and the target language code. Romanization and annotation require server-side language tools (MeCab, pypinyin, aksharamukha, and others) that can’t run in the browser — that is the sole reason any text leaves your device.

We do not send your account information, your viewing history, your playhead position, any unique device identifier, or any browser-level telemetry. The API receives the subtitle text and the language code, and nothing more.

If you set an owner key (via loom.nerv-analytic.ai/?owner_key=…), that key is sent as an HTTP header on API requests to bypass rate limits. It is stored only in your browser’s local storage and is removed when you uninstall the extension or clear it.

The Loom API processes requests in memory and does not archive subtitle text by default. A future opt-in research pipeline may store anonymized text to train language models; if and when that ships, it will be governed by an explicit per-request opt-in flag that you control from the extension’s settings, and this page will be updated before it does.

We do not share data with third parties. We do not use analytics services. We do not run advertising.

Uninstalling the extension removes all locally-stored preferences and the owner key. The Loom API holds no per-user records, so there is nothing server-side to delete.

Questions about this policy? privacy@nerv-analytic.ai.