WebMargin by DDD

WebMargin keeps private notes at the edge of the web. Create a separate note for one page, an entire website, or every page. Notes save automatically and stay in your browser's local extension storage.

Features:

• Compact popup and optional Firefox sidebar
• Notes for a specific page, an entire website, or everywhere
• Automatic saving
• Bold, italic, underline, strikethrough, and lists
• Tags, favorites, and search across all notes
• Recoverable trash with automatic deletion after 30 days
• Instant calculations inside your notes: type an expression using +, −, ×, ÷ or parentheses, then press Tab to insert the suggested result.
• Complete local JSON backups with merge and replace modes
• Dark and light themes
• English and Russian interface
• No account, advertising, analytics, or transmission of note data

WebMargin works entirely locally and does not send your notes to the developer or third parties.