2027 Calendar - Plan Tasks & Get Browser Reminders

A full 2027 calendar with events, notes, and browser reminders - all stored locally

🔒 100% ブラウザ内🆓 ずっと無料⚡ サインアップ不要
注意: 下記のツールインターフェースは現時点で英語のみに対応しています。UI の翻訳は順次進めています。 このツールを英語で見る →
January 2027
Reminders need permission to show browser notifications.Keep this tab open for reminders to fire on time.
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Friday, January 1
No events. Click "+ New" or double-click a day.
あくまで推定値です。 計算結果は入力値に基づく一般的な式から生成された、情報提供のみを目的とするものです。金融、税務、法律、医療、または専門的な助言ではなく、個々の状況、管轄、税金、手数料、健康状態を考慮していません。重要な数値は必ず有資格の専門家に確認してください。本ツールの利用により、以下に同意したものとみなされます: 利用規約と免責事項.

使い方

  1. 1
    Enable browser notifications

    The first time you visit, click Enable notifications so your browser can pop reminder alerts. This grants permission for this site only - no account needed.

  2. 2
    Click a day and add an event

    Click any day on the 2027 calendar to select it, then hit + New. Enter a title, time, and optional notes, and choose how far in advance you want to be reminded.

  3. 3
    Get reminded automatically

    Keep the tab open (or add it as a PWA). When the reminder time hits, your browser fires a native notification with the event title and time. Events also stay saved so you can review the whole month at a glance.

  4. 4
    Export to back up

    One click exports every event as a JSON file you can save or move to another device. Import brings them back - great for switching browsers or keeping a personal backup.

2027 Calendar - Plan Tasks & Get Browser Reminders について

A free, full-year 2027 calendar you can use like a regular calendar app. Click any day to add an event with a title, time, and notes. Pick a reminder (5 minutes, 30 minutes, an hour, or a day before) and your browser will pop a notification when the time comes. Every event is stored locally in your browser - no signup, no account, no server - and you can export or import your whole calendar as JSON to back it up or move it between devices. 712 Tools の 2027 Calendar - Plan Tasks & Get Browser Reminders はモダンな JavaScript API を使って完全にブラウザ内で動作します - サーバーがあなたのデータを見ることは一切ありません。つまり、即時の結果、完全なプライバシー、アップロード制限なしです。

デバッグ、簡単な確認、あるいは本番のインシデント対応まで - このツールは何度でも無料で使えます。ウォーターマークなし、サインアップなし、ツール内広告なし。

よくある質問

Where are my events stored?

In your browser's localStorage, tied to this domain. Nothing is uploaded to a server - the calendar works offline once the page has loaded.

Will reminders fire if the tab is closed?

No - this is a browser-only tool with no server or push infrastructure. Reminders need the tab open (or the site installed as a PWA and open in the background). For hard deadlines you can't miss, we recommend also adding the event to your phone's system calendar.

Why does it only cover 2027?

It's designed to be a dedicated planner for the year - quick to open, easy to scan the whole year, with no clutter. If you need older or newer years, we may add a year switcher later.

Can I use it on my phone?

Yes. The layout adapts to phone screens, and mobile browsers can fire notifications too - though iOS notifications work best if you 'Add to Home Screen' first.

How do I move my calendar to another browser or device?

Click Export to download a JSON file with every event, then Import on the other device to restore them.

Is my data private?

Yes. Everything - events, titles, notes, times - lives in your browser only. Nothing is sent to any server, and there's no account or telemetry attached to your events.

What reminder times are available?

At the event time, 5 min before, 10 min, 15 min, 30 min, 1 hour, 2 hours, or 1 day before. Pick 'No reminder' if you just want to note the event.

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