Save, activate, edit, import, export, and delete reusable NotebookLM system prompts per notebook.
Users
17
+1 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#165K
#138K among extensions
Version
0.1.0
updated 28 May 2026
Users
monthly, 5 months
Latest, 18 Oct 2026:17 usersMove the mouse over the chart for any month
Ratings count
monthly, 5 months
Latest, 18 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About NBLMsysprompt
NBLMsysprompt adds a reusable system prompt library to NotebookLM chat settings. Save prompts per notebook, activate or deactivate them from a compact library, edit them later, and move them between browsers with JSON import and export. No manual copy-paste workflow is needed.
What it adds:
- Save Prompt and Manage Library buttons inside NotebookLM Configure chat
- Per-notebook prompt storage based on the notebook URL
- Fast activation and deactivation of saved prompts
- Edit, delete, search, import, and export tools for prompt libraries
- Local-only storage in chrome.storage.local
NBLMsysprompt runs locally in the browser and does not use an external server. NBLMsysprompt is an independent project and is not affiliated with, endorsed by, or sponsored by Google or NotebookLM.
Growth
Window
Users
Change
Ratings
Rating
7 days
+2
+13.3%
0
0.00
30 days
+1
+6.2%
0
0.00
Chrome Web Store search rankings
Where NBLMsysprompt appears when people search the store, with the 30 day change