ランダムメールジェネレータ
テスト、モックアップ、デモ用に偽のメールアドレスを一括生成します。現実的な名前またはランダム文字列をローカル部分として選択し、名前形式と一般的なドメイン、架空のドメイン、またはカスタムドメインを選びます。実際のメールボックスではありません。
入力
出力
テスト用の偽のアドレス - 1行に1つのメール。
このツールを使う他の方法
REST API
curl -X POST https://api.iotools.cloud/v1/tool/random-email-generator \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"count": "10",
"usernameStyle": "realistic",
"emailFormat": "first.last",
"domainType": "common"
}'ご自身のアカウントのキーに差し替えてください。ツールのフィールドがそのままリクエストボディになります——ラッパーはありません。
AIエージェントに依頼する
Use the IOTools `random-email-generator` tool (Random Email Generator) on this input:
YOUR_INPUT_HEREIOTools MCPサーバーに接続された任意のエージェントにこれを貼り付け、入力内容を追加してください。
埋め込みウィジェット
<iframe
src="https://iotools.cloud/embed/random-email-generator/"
width="100%" height="520" frameborder="0" scrolling="no" loading="lazy"
title="ランダムメールジェネレータ — iotools.cloud"
sandbox="allow-scripts allow-forms allow-same-origin allow-downloads allow-popups allow-popups-to-escape-sandbox"
allow="clipboard-write"
style="width:100%;border:1px solid #e5e7eb;border-radius:12px;overflow:hidden"></iframe>
<script src="https://iotools.cloud/embed.js" async></script>ご自身のページに貼り付けるだけ——無料、キー不要、リンクを掲載するだけです。
| API/MCP 1回あたりの費用 | 5クレジットから |
|---|---|
| クレジットが足りませんか? | 料金を見る |
次の方法でも利用可能
ガイド
The Random Email Generator creates batches of fake, well-formed email addresses in one click. Every address follows the standard user@domain.tld shape, so it drops straight into test databases, sign-up form fixtures, spreadsheet mockups, screenshots and demos without tripping email validation. The addresses are randomly assembled and do not belong to real inboxes.
How to use it
- Set Number of Emails with the slider (1 to 100 per batch).
- Pick a Username Style:
- Realistic Names builds the local part from a large pool of common first and last names.
- Random Strings uses a 6–12 character lowercase alphanumeric string instead.
- When using realistic names, choose a Name Format —
first.last,firstlast,first_last,f.last, orflast. - Choose a Domain Type: common mailbox providers (gmail.com, outlook.com, …), obviously fictional test domains (example.org, test.email, …), or your own Custom Domain.
- Click Generate. Results appear one per line, ready to copy or download as a text file.
Each batch is de-duplicated, so you won't get the same address twice in a single run.
Which domain type should I pick?
Use Common Providers when you want addresses that look like everyday user accounts. Use Fictional / Test Domains when the data should be unmistakably fake — these domains are reserved for examples and tests, so nothing you generate can collide with a real address. Use Custom Domain to pin every address to one domain (e.g. your app's staging domain) for seeding an internal directory.
Are these real email addresses?
No. The names, strings and domains are combined at random purely to produce syntactically valid addresses. They are meant for testing and demonstration only — do not use them to send mail or to sign up for services.
Why do I get different results each time?
Generation is random by design, so pressing Generate again gives a fresh batch. If you need a specific set, generate once and save the output.
Privacy
Everything runs in your browser. No addresses are sent to a server, stored, or logged — the tool simply assembles random text locally each time you click Generate.