Sidelog

Your daily log, always in the sidebar. Write, tag, and search notes without ever leaving the tab.

You don't need another app. You need a margin. Most note tools pull you away from what you're doing — new tab, new window, new context switch. Sidelog lives in your browser's side panel, always one click away, never in the way. Open it while you're reading a GitHub issue. Jot down what you figured out. Close it. Come back tomorrow and it's already dated and waiting. What makes it different: It's a daily ledger, not a blank canvas. Every session starts with today's note — already dated, already ready. No setup, no friction. Markdown that actually works. Type / for a slash command menu — headings, lists, code blocks, quotes — exactly like Notion, without needing a Notion account. Your data never leaves your machine. No accounts. No cloud sync. No servers storing your thoughts. Everything lives in your browser's local storage, privately. A timeline that earns its name. Go back through your history with smart gap-filling for missed days. Search by text, filter by tag, find anything in seconds. Built for people who think in text: Developers keeping daily work logs Writers tracking daily word counts and ideas Researchers logging findings as they browse Anyone who thinks better by writing things down