Google Keep
keep.google.com
Sticky notes that sync with your Google account and can read a photo
Free account
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google.com
Clipped text from any page into a notebook without leaving the tab.
Use Standard Notes instead
Encrypted notes where the sync server only ever holds ciphertext. The free plan is plain text only — editors, attachments and revision history need a subscription.
Open Standard NotesA browser extension and web app for clipping quotes and links into organised notebooks while researching, with the source URL attached automatically. Google stopped development in 2009 and closed it in 2012. Its actual descendant is the modern web clipper built into every notes product.
Questions
No. Google Notebook is no longer running and google.com does not serve the tool any more. Standard Notes is the closest current equivalent — it encrypted notes where the sync server only ever holds ciphertext.
Yes. Google Notebook sends your input to its own servers to process it. That is fine for public material; for anything containing personal data, use one of the on-device tools instead.
Development stopped in 2009 and the service closed in 2012.
Alternatives
Same category or same task, ordered by how closely they overlap.
keep.google.com
Sticky notes that sync with your Google account and can read a photo
simplenote.com
Plain-text notes that sync everywhere and never ask you to format anything
anotepad.com
Opens straight into a blank note you can type in without signing up
notion.com
Builds a workspace out of pages and databases instead of a folder of files
standardnotes.com
Encrypted notes where the sync server only ever holds ciphertext
workflowy.com
One infinite bulleted list you can zoom into at any level