Google Keep
keep.google.com
Sticky notes that sync with your Google account and can read a photo
Free account
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anotepad.com
Opens straight into a blank note you can type in without signing up.
The page loads with an empty note and an autosave, which makes it the fastest way to park a phone number or a paragraph you are about to paste somewhere else. Notes can be plain text, rich text, Markdown or a checklist, and any of them export to PDF or Word. Without an account the note gets a public URL, so treat it as a scratchpad rather than a diary.
AltFTool does this too
If you would rather not leave the site, Online Notepad covers the same job here — free, no account, and it runs in your browser.
Open Online NotepadQuestions
Works the moment the page loads. No account, no email, no trial. Notes written without an account are readable by anyone with the link, and attachments are a paid feature.
Yes. aNotepad 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.
Notes written without an account are readable by anyone with the link, and attachments are a paid feature.
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
notion.com
Builds a workspace out of pages and databases instead of a folder of files
pomofocus.io
A 25-minute timer with a task list and nothing else on the screen
simplenote.com
Plain-text notes that sync everywhere and never ask you to format anything
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