使用方法: 電子郵件二維碼產生器
電子郵件二維碼產生器 是一款免費線上qr工具,可在瀏覽器中即時create a mailto: QR code with prefilled recipient, subject and body。貼上資料、調整選項即可即時獲得結果——無需安裝、無需註冊,任何資料都不會上傳到伺服器。
說明
Create a mailto: QR code with prefilled recipient, subject and body.
- qr
- 由於全部運算都在客戶端完成,使用 API 金鑰、權杖或私有記錄等敏感資料時,電子郵件二維碼產生器 同樣安全。
使用方法
使用 電子郵件二維碼產生器 只需三步:
- 將資料貼上到輸入框(或載入範例)。
- 依目標格式或使用情境調整選項。
- 複製、下載或檢視輸出——輸入時結果即時更新。
執行
範例
Builds mailto:john@example.com?subject=…&body=… with the subject and body percent-encoded.
輸入
john@example.com
輸出
<div class="qr-out">
<div class="qr-preview"><img src="data:image/png;base64,iVBORw0KGgo=" alt="QR code" width="256" height="256" style="max-width:100%;height:auto;image-rendering:pixelated"></div>
<div class="qr-meta">
<table class="tb-table"><tbody>
<tr><th>Detected type</th><td>Email</td></tr>
<tr><th>Version</th><td>6 (41×41 modules)</td></tr>
<tr><th>Error correction</th><td>M</td></tr>
<tr><th>Quiet zone</th><td>4 module(s)</td></tr>
<tr><th>Payload size</th><td>94 bytes (UTF-8)</td></tr>
<tr><th>Contrast</th><td>21.00:1</td></tr>
<tr><th>Validation</th><td class="ok">VALID</td></tr>
<tr><th>Render → decode self-test</th><td class="bad">FAILED (decoded ≠ payload)</td></tr>
</tbody></table>
<table class="tb-table"><tbody><tr><th>address</th><td>john@example.com</td></tr><tr><th>subject</th><td>Hello from 26173</td></tr><tr><th>body</th><td>This is a prefilled message.</td></tr></tbody></table>
</div>
</div>
<div class="qr-payload"><strong>Payload</strong><pre class="ex-io">mailto:john@example.com?subject=Hello%20from%2026173&body=This%20is%20a%20prefilled%20message.</pre></div>
<div class="tb-btns qr-actions">
<button class="btn btn-primary" data-qr-dl="png">Download PNG</button>
<button class="btn" data-qr-dl="svg">Download SVG</button>
<button class="btn" data-qr-copy="payload">Copy payload</button>
<button class="btn" data-qr-copy="svg">Copy SVG</button>
<button class="btn" data-qr-copy="image">Copy image</button>
<button class="btn" data-qr-print>Print</button>
</div>
<p class="ex-note">Generated and verified entirely in your browser. No data is uploaded.</p>
此输出由工具真实运行产生,并非人工编写。
使用場景
電子郵件二維碼產生器 常見的使用情境:
- Create a mailto: QR code with prefilled recipient, subject and body.
參數說明
| key | 選項 | type | allowed | default | 電子郵件二維碼產生器 |
|---|---|---|---|---|---|
type | Content type | select | text, url, wifi, email, phone, sms, vcard, mecard, geo, calendar, whatsapp, telegram, bitcoin, ethereum, upi, json, custom | — | |
ec | Error correction | select | M (M ≈ 15% (default)), L (L ≈ 7%), Q (Q ≈ 25%), H (H ≈ 30% (needed for logos)) | — | M |
version | Version (0 = auto) | number | — | 0 | — |
margin | Quiet zone (modules) | number | — | 4 | 4 |
scale | Module size (px) | number | — | 8 | — |
fg | Foreground | color | — | #000000 | — |
bg | Background | color | — | #ffffff | — |
dot | Module style | select | square (Square), rounded (Rounded), dots (Dots) | — | — |
corner | Finder pattern style | select | square (Square (safest)), styled (Styled) | — | — |
輸入: — · 輸出: HTML · live: ✗
常見問題
什麼是 Email QR Code Generator?
Email QR Code Generator 用於create a mailto: QR code with prefilled recipient, subject and body。它完全在瀏覽器內執行,資料保持私密。
Email QR Code Generator 可以免費使用嗎?
可以。Email QR Code Generator 免費、無次數限制,無需註冊或安裝。
我的資料會被上傳嗎?
不會。所有處理都在本機瀏覽器完成,不會傳送到任何伺服器。
注意事項
- 结果不会随输入实时更新——修改输入后请点击「运行」。
- 输出以格式化内容呈现;如需纯文本请使用「复制」。
- 全部计算在浏览器端完成,因此超大输入受限于标签页内存,而非服务器上传限制。
相關工具
二維碼產生器Create QR codes for text, URLs, Wi-Fi, vCard, email, phone, SMS, geo, calendar, WhatsApp, Telegram, Bitcoin, Ethereum, UPI and JSON, with error correction, quiet zone, colours and PNG/SVG export.URL 二維碼產生器Turn any link into a scannable QR code, adding https:// when the scheme is missing and warning about unsafe schemes.Wi-Fi 二維碼產生器Build a standards-compliant WIFI: payload with SSID, password, WPA/WEP/open encryption and hidden-network flag so phones join the network on scan.vCard 二維碼產生器Generate a vCard 3.0 contact QR code with name, organisation, title, phone, email, website, address and note.MECARD 二維碼產生器Build a MECARD contact payload — the compact alternative to vCard that fits in a smaller, lower-version QR symbol.Phone 數字二維碼產生器Generate a tel: URI QR code that opens the dialler with the number already filled in.