These are the listings closest to OmniNotation in what they say they do. Comparable, not endorsed: the ranking is the catalog's, and the judgement is yours.
Replacing
OmniNotation
Category
Productivity · Tools
Its audience
13 users
Comparable listings
8
Comparable listings
Web NotesDescribes nearly the same job, smaller audience · Narrower access than the original4 usersCompare side by side
WebNoteDescribes nearly the same job, smaller audience · Wider access than the original19 usersCompare side by side
SidenoteDescribes nearly the same job, smaller audience · Fewer sites but more permissions than the original12 usersCompare side by side
AnnoDescribes nearly the same job, smaller audience · Narrower access than the original10 usersCompare side by side
MarkletDescribes nearly the same job, smaller audience · Wider access than the original19 users★ 5.0Compare side by side
Comparable listings are pre-computed from the meaning of each store listing, then shown with the audience and rating from our latest pass over the store. Access compares where each listing can run (every site, how many site patterns) and how many browser permissions it declares, against the extension it would replace. Narrower is not a verdict on safety: compare what each needs for the job.