Infomelt (信息炉来) browser extension · Last updated: September 2026
In one sentence: the extension only records public content you browsed yourself. By default it stays on your own computer and is never sent to any server.
While you browse Xiaohongshu or Douyin normally, the extension organises the public information you have already seen (title, author name, like/save/comment counts, publish date, cover link, note link; for notes you opened, also the body text and comments) into a spreadsheet for your own content analysis.
During capture, it does not auto-scroll, click, navigate or make bulk requests to platform content APIs. You control the browsing pace. When you choose Export with cover thumbnails, the browser fetches the relevant images from platform image servers.
| Data | Purpose | Where it is stored |
|---|---|---|
| Public note information you browsed | Your own analysis spreadsheet | Your browser's local storage |
| Extension settings (export format, language, etc.) | Remember your preferences | Your browser's local storage |
| Your email, subscription and run records (cloud mode only) | Billing and restoring your balance | Our server |
| Login session (random token, device type and browser name, last used) | Verify it is you; limit simultaneous devices | Our server (expires after 90 days unused; sign out or remove devices in the extension) |
Cloud mode requires signing in: we send a one-time code to the email you enter (via Cloudflare's email service). No password, no account registration. The code is valid for 10 minutes and used only for that sign-in.
The extension does not collect: your Xiaohongshu / Douyin passwords or credentials, private messages, personal identity information, browsing history on any other site, or location.
Recorded content exists only in your browser and on your computer. Exported files go to your own Downloads folder. Nothing passes through our servers; it works offline.
During a capture, for videos you open and play yourself, the extension records the player's audio output in your browser and grabs up to 4 frames. Only videos you play, only as far as you watched; nothing is downloaded, auto-played or bulk-collected. The recording stays in your browser and is uploaded only with a run you submit for cloud analysis: the audio is transcribed immediately (Alibaba Cloud Bailian speech service) and the audio file is deleted as soon as it is transcribed; the text and frames are used for that run only and deleted with the other raw content afterwards. Switch it off under Settings → Video voice-over capture.
The data improvement program in the extension's settings is on by default and can be switched off at any time. When it is on, after a cloud analysis finishes we keep a de-identified statistical summary of the result: the content directions found, the kinds of title templates that worked, and per-keyword engagement averages. We never keep note bodies, comments, nicknames, user IDs or anything that points to a specific post or person. These summaries are used only to improve report quality and to build industry-level aggregate insights (for example, which directions are rising across a category). Participants receive one extra run per month. You can switch it off at any time; summaries already kept are not linked to your account and cannot be traced back to you.
If you don't want anything to leave your computer, use local mode or the desktop edition; both are fully functional.
| Permission | Why it is needed |
|---|---|
| storage | Save recorded content and preferences locally |
| downloads | Save spreadsheets and cloud reports to your Downloads folder |
| alarms | Cloud analysis takes minutes; a timer polls progress and saves the report when done. Also a daily check for new versions |
| sidePanel | Show the extension in the browser side panel without covering the page |
| offscreen | Build the Excel with cover thumbnails in the background (canvas scaling) |
| host_permissions (xhscdn.com, douyinpic.com) | Platform image servers. Only when you click Export, cover thumbnails of notes you browsed are fetched and embedded in the local spreadsheet; never uploaded |
| host_permissions (xiaohongshu.com, rednote.com, douyin.com) | Works only on Xiaohongshu and Douyin pages, reading the page you are viewing. It never runs on other sites. tiktok.com is reserved for future support; no code runs there today |
| host_permissions (auth.infomelt.com) | Our own server, cloud mode only: subscription and balance, purchases and codes, submitting de-identified content, retrieving reports. Capture does not make bulk requests to platform content APIs; Export may fetch cover images from platform image servers |
Local mode involves no third party. In cloud mode, de-identified content is sent to AI providers (DeepSeek, Alibaba Cloud Bailian) for text analysis under their own terms.
Local data: click Clear in the extension, or uninstall it. Server data: raw content is deleted automatically after processing; to delete billing records, contact us below.
The extension is for business content analysis and is not directed at children under 14; we do not knowingly collect their information.
Changes update the date at the top of this page. Material changes to data use will be announced in the extension and require your consent.
Questions about this policy: use the contact details on the extension's Settings tab.
Infomelt 信息炉来 · infomelt.cn