Free Content Calendar Generator

How this tool computes its result

Renders a month grid (starting Sunday) computed from the days in the selected month and the weekday of the 1st, then plots saved content items — each with a date, title, platform, content type, and optional notes — into an itemsByDate map keyed by ISO date string. All state is persisted to the browser's localStorage under a fixed key on every change, guarded by a "hasLoaded" flag so the initial empty state doesn't overwrite previously saved data before the load effect runs. It supports exporting all items as CSV (Date, Title, Platform, Content Type, Notes columns) or as a plain-text report sorted by date.

Worked example

Clicking the 15th of the current month opens the add-content form; entering title "Product launch teaser," platform "Instagram," and content type "Reel" and submitting appends a new item with id = Date.now().toString() to the items array, which the save effect immediately writes to localStorage. If a fourth item is later added to the same day, the calendar cell shows only the first two item titles as chips plus a "+2 more" indicator, since the day cell explicitly renders dayItems.slice(0, 2).

When not to use this tool

Storage is client-side localStorage only, scoped to a single browser with no account or backend sync — it works well as a personal planning scratchpad, but isn't suitable for team calendars needing shared access, reminders, or recurring-post scheduling.

Common mistakes

• - Clicking "Clear All Items" and confirming without exporting first — this wipes the localStorage key entirely with no undo, and the confirmation dialog doesn't preview what's about to be deleted.
• - Assuming the Platform and Content Type dropdowns are linked — they're fully independent selects, so combinations like "TikTok" + "Article" are allowed even though they don't correspond to a real format; the tool does no platform/format validation.
• - Expecting the calendar to be available on another device or browser — since it's localStorage-only, clearing site data or switching browsers loses every saved item with no recovery.

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