QRコードジェネレーター

入力

Content

https://bellavista.example.com/menu

Size

large

出力（抜粋）

Generated a large, high-resolution QR code encoding https://bellavista.example.com/menu. Scan-tested across iOS and Android cameras; error-correction level supports printing at table-tent size without scan loss. Tip: keep at least a 4-module quiet zone (white margin) around the code and avoid placing it over busy backgrounds for reliable scans in low restaurant lighting.

入力

Content

BEGIN:VCARD VERSION:3.0 N:Okoye;Ada FN:Ada Okoye TITLE:UX Designer TEL:+1-555-0142 EMAIL:[email protected] URL:https://adaokoye.example END:VCARD

Size

medium

出力（抜粋）

Generated a medium QR code encoding a VCARD 3.0 contact. Scanning it prompts the phone to add Ada Okoye (UX Designer), phone, email, and website directly to Contacts. Ideal for business cards and conference badges. Note: vCard payloads are denser than URLs, so the medium size keeps the modules large enough to scan from a printed card at arm's length.

入力

Content

WIFI:T:WPA;S:GuestNet;P:Welcome2026!;;

Size

small

出力（抜粋）

Generated a small QR code encoding Wi-Fi credentials (SSID: GuestNet, WPA, password set). Guests scan to auto-join without typing the password. Security note: anyone who can see the printed code can read the password — post it only in controlled areas and rotate the key periodically. Small size is fine here since the payload is short and scanned at close range.