DataNap — Local Tab Vault & Memory-Saving Deep Sleep Manager
Vault open tabs to a local list you can reopen, and deep-sleep idle tabs to free RAM. 100% local. A OneTab-style tab manager.
See How DataNap Works in Real Life
Full Walkthrough Transcript
[00:00.0–00:07.8]: Need a simpler way to handle parking research tabs and freeing up browser memory without creating another account or handing your data to an external cloud?
[00:07.8–00:17.7]: Watch DataNap in action: Put heavy background tabs to sleep natively without closing them or losing their place in your tab bar—and wake them instantly when you click back.
[00:17.7–00:36.4]: Sweep a whole window of open tabs into a dated, searchable local list that survives browser updates, restarts, and system crashes. Plus, migrate years of saved OneTab links in one paste, and export any vaulted session to clean Markdown or JSON for Obsidian and local backups.
[00:36.4–00:45.4]: Unlike free tab suspenders caught injecting tracking scripts, DataNap uses native browser APIs with zero outbound network permissions.
[00:45.4–00:55.3]: Software that lives where you do. No accounts, no tracking, and zero cloud rent—at 864zeros.com.
Click Around DataNap
Try a realistic sample right here—nothing installs and nothing leaves your browser.