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    メールアドレス生成ツール

    どんな名前からでも、プロフェッショナルなまたはランダムなメールアドレスのアイデアを数秒で generat します。

    メールアドレスの候補

    これらはアドレスのアイデアです。登録されたメールボックスではありません。サインアップの参考にしてください。

    クリエイターやプロに役立つ便利なユーティリティ

    QRコード、パスワード、色、ハッシュタグ、タイマーなど、時間を節約できる小さなツール集です。

    必要なものを数秒で生成

    QRコード、強力なパスワード、ハッシュタグ、メールアドレスをワンクリックで作成。クリーンな出力で、コピー、共有、スキャンする準備ができています。

    このツールを試す
    必要なものを数秒で生成

    色を選び、単語を数え、フォントを組み合わせる

    色の正確なHEX値の取得から下書きの単語数カウントまで、実際の作業のために作られたデザインとライティングのヘルパーです。

    フォントペアリングを開く
    色を選び、単語を数え、フォントを組み合わせる

    楽しさと生産性を兼ね備えたツールキット

    教室、ワークアウト、会議、ゲームナイトに使えるタイマー、ストップウォッチ、コイントス、サイコロ。ダウンロードは不要です。

    QRコードジェネレーターを開く
    楽しさと生産性を兼ね備えたツールキット

    ステップバイステップガイド

    メールアドレスジェネレーター の使い方

    プレースホルダーデータやテスト用のランダムまたはテーマ別メールアドレスを生成します。

    ステップバイステップの手順

    1. 1

      スタイル（ランダム、名前ベース、ドメイン固有）を選択します。

    2. 2

      必要なアドレスの数を設定します。

    3. 3

      生成ボタンをクリックします。

    4. 4

      1つをコピーするか、リスト全体をエクスポートします。

    メリット

    • リアルなテスト用メールアドレスを作成します。
    • QAやデモ用の大量生成。
    • カスタマイズ可能なドメインと形式。
    • 無料で無制限に利用できます。

    対象者

    • テストデータベースにデータを投入する開発者
    • フォームに入力するQAエンジニア
    • リアルなデータでモックアップを埋めるデザイナー

    よくある質問

    よくある質問

    Email Name Generator Free generates readable, unique local‑parts (the part before @) and pairs them with domain suggestions using a single-page UI. Click the blue "Generate" button on the homepage, choose a batch size from the "Batch size" dropdown (defaults to 20, up to 100 per click), then use "Shuffle" to get a new ordering or "Copy All" to copy the full list to clipboard. You can also filter by mode (Personal, Business, Temporary) before generating; results appear instantly in the results pane and are safe to export as .csv or .txt via the "Export CSV" or "Download TXT" buttons.

    Switch the top toggle to "Business Mode", enter the company domain in the "Domain" field (e.g., example.com), then set the "Format" selector to options such as "first.last", "f.last", "first" or "first_last". The tool will generate variations like john.smith@example.com, j.smith@example.com and john_s@example.com and shows an internal score column for deliverability-style heuristics. Use "Bulk Mode" to input a CSV of employee names (Accepts .csv with columns first,last) and press "Generate" to create up to 5,000 formatted addresses per run; exported CSV includes columns suggestion, type, score.

    Toggle "Temporary Mode" to get name ideas optimized for disposable inboxes (labels like temp-hex, 10min style), which output suggestions such as temp-94f2a@domain.com or guerrilla-friendly formats. The generator does not create mailboxes — it only suggests local‑parts; to use them you must sign up with a disposable provider like 10minutemail or Guerrilla Mail and paste a generated name. For privacy, the tool does not require sign-up and keeps generation local in your browser, although analytics events (non-identifying) may be sent; you should still avoid pasting real personal info into public devices.

    Results can be exported using the "Export CSV" button (produces UTF‑8 .csv with columns suggestion,type,score), "Download TXT" (plain .txt, one suggestion per line), or "Export JSON" (application/json). Single exports support up to 10,000 suggestions; typical file sizes remain under ~2 MB for 10,000 short strings so browsers like Chrome/Firefox handle downloads fine on desktop. If a browser blocks automatic downloads, the UI shows a secondary "Save As" link that triggers the native download dialog; for very large exports split into multiple CSVs using the batch-size control.

    The generator produces local‑parts using letters (a–z), digits (0–9), periods (.), dashes (-) and underscores (_), and enforces the SMTP limit of 64 characters for the local part and 255 characters for the full address. Some providers further restrict dots in specific positions (e.g., Gmail ignores dots) or disallow consecutive dots, so the tool flags suggestions with a red "Provider conflict" badge when it detects a common restriction. Use the "Strict RFC" toggle to remove leading/trailing dots and collapse consecutive punctuation to avoid incompatibilities with stricter providers.

    The generator ranks candidates by a composite score that weighs uniqueness (frequency in public name datasets) against memorability (length, pronounceability) and your selected mode. In "Unique" mode it will append short numeric or lexical suffixes like -42 or -nova to prioritize less-used identifiers, while "Memorable" mode prefers shorter, dictionary-friendly forms such as ben.smith or clairej. This trade-off means truly unique outputs can be longer or include non-dictionary fragments, so use the "Length" slider and "Include numbers" checkbox to tune that balance for your preference.

    If "Copy" or "Copy All" fails, the most frequent causes are browser clipboard permissions or lack of a user gesture; on iOS Safari you must tap the button once more after the permission prompt, while on Android Chrome the action works only over HTTPS and with a direct tap. If "Export CSV" returns a blocked download, check your pop-up blocker — the page shows a small "Retry Download" link which triggers a manual Save As dialog. For JSON exports that look garbled in Notepad, open them in a UTF‑8‑aware editor (VS Code or Sublime) or import the .csv into Excel using Data → From Text to preserve encoding.

    On desktop Chrome/Firefox the UI supports keyboard shortcuts (G for Generate, S for Shuffle) and full clipboard APIs; mobile browsers show a simplified toolbar and require explicit taps for clipboard writes. iOS Safari will prompt for clipboard permission and may refuse programmatic file downloads — use the "Copy All" button then paste into Notes or a mail composer to save; Android Chrome supports direct .csv downloads but large batch exports over ~5,000 items can hit memory limits on low‑RAM devices. For best results on mobile, reduce batch size to 50 and use the "Export TXT" option which is smaller and lighter to handle.

    Email Name Generator Free requires no account, no email, and no payment for basic use; generated lists contain no watermarks and copy/export tools are active immediately. There are soft rate limits to prevent abuse: 1000 suggestions per IP per hour and a 10,000 suggestions per day export cap; if you hit limits you'll see a polite "Rate limit reached" modal with a 1‑hour countdown. Optional premium features (not required) include API access and higher daily quotas for teams; basic browser use remains free and anonymous.

    Yes — open "Bulk Mode", click "Upload CSV" and upload a .csv with column headers like company,first,last or keywords; the importer accepts up to 5,000 rows per upload. After upload choose formats (first.last, f.last, role@company) and press "Generate"; the tool will output a mapped CSV you can download with suggestion,source_row,type fields. For very large lists split uploads into chunks under 5,000 rows to avoid browser memory spikes and consider exporting to .json if you plan to pipe results into scripts.

    The generation logic runs primarily in your browser and results are not stored on our servers by default; however short-lived telemetry (generation counts, errors) and your non-identifying settings (mode, batch size) are logged to prevent abuse. Session preferences are kept in localStorage so your last-used settings reappear, and you can clear them via the "Clear Preferences" button. If you choose to use the optional "Save List to Cloud" feature, the site will request an email and store that specific list on the server (exportable .csv/.json); otherwise nothing you generate is persistently uploaded.

    The web generator provides instant human-readable heuristics (deliverability score, provider conflict flags) and pre-built formats (first.last, role@) which Excel requires you to assemble with formulas like =LOWER(CONCAT(A2,".",B2)). For bulk or reproducible pipelines, a command‑line script may be preferable: scripts can generate millions of permutations without browser memory limits, whereas the web tool is optimized for quick batches (up to 10,000 exports) and interactive tuning. Use the web tool for fast ideation and manual exports (.csv/.json/.txt) and switch to Excel or scripts when you need automation, version control, or integration with mail systems.

    このツールについて

    任意の名前からプロフェッショナルなメールアドレスを生成

    良いメールアドレスを選ぶのは、思っているよりも難しいものです。名前の短いバージョンはほとんどGmailで使われていて、職場のメールアドレスはITチームが推奨する厳格な形式があり、サイドプロジェクトにはまた別のものが必要です。このジェネレーターは、任意の氏名から、最も一般的な7つの形式（first.last、firstlast、first_last、イニシャル、ランダムな数字付き）で1〜20個の洗練された候補を生成するので、最適なものを選ぶことができます。

    すべてブラウザ内で完結します。入力した名前、生成された候補、コピーしたメールアドレスがサーバーに触れることはありません。これらはあなたの登録のためのインスピレーションであり、実際のメールボックスではありません。そのため、Gmail、Outlook、ProtonMail、その他のプロバイダーで登録する前に、オプションを比較検討できます。

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