Anleitung: E-Mail QR-Codegenerator
E-Mail QR-Codegenerator ist ein kostenloses Online-qr-Tool, das create a mailto: QR code with prefilled recipient, subject and body sofort im Browser ausführt. Daten einfügen, Optionen anpassen, Ergebnis in Echtzeit — ohne Installation, ohne Konto, ohne Uploads.
E-Mail QR-Codegenerator jetzt verwenden →
Beschreibung
Create a mailto: QR code with prefilled recipient, subject and body.
- qr
- Da alles clientseitig berechnet wird, ist E-Mail QR-Codegenerator auch für sensible Daten wie API-Keys sicher.
Anleitung
E-Mail QR-Codegenerator in drei Schritten:
- Daten ins Eingabefeld einfügen (oder Beispiel laden).
- Optionen für das Ziel format anpassen.
- Ausgabe kopieren, herunterladen oder prüfen — Live-Aktualisierung.
Ausführen
Beispiele
Builds mailto:john@example.com?subject=…&body=… with the subject and body percent-encoded.
Eingabe
john@example.com
Ausgabe
<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。
Anwendungsfälle
Typische Einsatzfälle für E-Mail QR-Codegenerator:
- Create a mailto: QR code with prefilled recipient, subject and body.
Parameter
| key | Optionen | type | allowed | default | E-Mail QR-Codegenerator |
|---|---|---|---|---|---|
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) | — | — |
Eingabe: — · Ausgabe: HTML · live: ✗
FAQ
Was ist Email QR Code Generator?
Email QR Code Generator dient dazu, create a mailto: QR code with prefilled recipient, subject and body. Es läuft vollständig im Browser — Daten bleiben privat.
Ist Email QR Code Generator kostenlos?
Ja: unbegrenzt, ohne Registrierung und ohne Installation.
Werden meine Daten hochgeladen?
Nein. Alles wird lokal im Browser verarbeitet.
Gut zu wissen
- 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。
Verwandte Tools
QR-CodegeneratorCreate 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 QR-CodegeneratorTurn any link into a scannable QR code, adding https:// when the scheme is missing and warning about unsafe schemes.Wi-Fi QR-CodegeneratorBuild a standards-compliant WIFI: payload with SSID, password, WPA/WEP/open encryption and hidden-network flag so phones join the network on scan.vCard QR-CodegeneratorGenerate a vCard 3.0 contact QR code with name, organisation, title, phone, email, website, address and note.MECARD QR-CodegeneratorBuild a MECARD contact payload — the compact alternative to vCard that fits in a smaller, lower-version QR symbol.Phone Zahlen QR-CodegeneratorGenerate a tel: URI QR code that opens the dialler with the number already filled in.