Bulk QR code generator from CSV

What this tool does

The bulk generator turns a CSV list into many matching QR codes in one run. Supported types in Phase B1: URL, WiFi, LINE, WhatsApp, and vCard. You apply one visual design to every code and download a ZIP of PNG files.

Everything happens in your browser. We do not store your CSV or exported images on a server. No account is required.

Each batch supports up to 50 codes so export stays fast on everyday laptops and phones — including devices with about 4 GB of RAM.

CSV file format

Use the type dropdown above the upload button, then download the matching sample (for example bulk-qr-sample-wifi.csv). Each sample includes only the columns you need. Legacy CSV files with only url, filename, and label still work for URL batches.

type

Required for mixed batches. One of: url, wifi, line, whatsapp, vcard.

filename

Optional but recommended. PNG file name inside the ZIP, without the .png extension.

label

Optional. Frame text when your design uses a label frame.

url

For type url. Full https:// or http:// address.

wifiSsid / wifiPassword / wifiEncryption

For type wifi. Encryption is WPA, WEP, or nopass.

lineId

For type line. LINE ID, @official account, or https://line.me URL.

whatsappPhone / whatsappMessage

For type whatsapp. Phone in international format; message is optional.

vcardFirstName / vcardLastName / …

For type vcard. At least first or last name required; phone, email, and website optional.

type,filename,label,url
url,table-01,Table 1,https://example.com/menu?table=1
url,table-02,Table 2,https://example.com/menu?table=2
url,table-03,Table 3,https://example.com/menu?table=3
url,table-04,Table 4,https://example.com/menu?table=4
url,table-05,Table 5,https://example.com/menu?table=5
url,table-06,Table 6,https://example.com/menu?table=6
url,table-07,Table 7,https://example.com/menu?table=7
url,table-08,Table 8,https://example.com/menu?table=8
url,table-09,Table 9,https://example.com/menu?table=9
url,table-10,Table 10,https://example.com/menu?table=10

type,filename,label,lineId
line,line-01,Add LINE,@YourShop
line,line-02,Order on LINE,@YourShop
line,line-03,Chat with us,@YourShop
line,line-04,Shop LINE,@YourShop
line,line-05,Scan to add,@YourShop
line,line-06,LINE order,@YourShop
line,line-07,Contact LINE,@YourShop
line,line-08,LINE OA,@YourShop
line,line-09,Add friend,@YourShop
line,line-10,LINE here,@YourShop

type,filename,label,wifiSsid,wifiPassword,wifiEncryption
wifi,room-101,Room 101,Room101Net,guest001,WPA
wifi,room-102,Room 102,Room102Net,guest002,WPA
wifi,room-103,Room 103,Room103Net,guest003,WPA
wifi,room-104,Room 104,Room104Net,guest004,WPA
wifi,room-105,Room 105,Room105Net,guest005,WPA
wifi,room-106,Room 106,Room106Net,guest006,WPA
wifi,room-107,Room 107,Room107Net,guest007,WPA
wifi,room-108,Room 108,Room108Net,guest008,WPA
wifi,room-109,Room 109,Room109Net,guest009,WPA
wifi,room-110,Room 110,Room110Net,guest010,WPA

• Pick a type in the dropdown and download bulk-qr-sample-url.csv, bulk-qr-sample-wifi.csv, and so on — one file per type you need.
• The samples above show 10 real rows each — copy the filename pattern (table-01, line-05, room-305) so print shops know which PNG goes where.
• Merge multiple types into one ZIP by appending rows to a single CSV (keep the first header row) or export separate batches.
• You can create the file in Excel, Google Sheets, or any spreadsheet app, then export as CSV (UTF-8).
• If a cell contains commas, wrap it in double quotes.
• Rows with missing required fields or invalid values are marked Invalid and skipped from the ZIP.
• Lists longer than 50 rows are trimmed to the first 50 — split very large jobs into multiple batches.

Step-by-step workflow

1. 1. Prepare and upload your CSV

   Choose a QR type from the dropdown, download the matching sample CSV, fill your rows, then click Upload CSV. After upload, the preview table shows type, content, filename, label, and Ready/Invalid status for each row.

2. 2. Choose one design for the whole batch

   Pick a template or customize colors, dot style, logo, frame, and size. The same design applies to every valid row. Per-row labels override the default frame text when a label column is present.

3. 3. Review valid rows

   Check the summary panel on the right. Only rows marked Ready are included in the export. Fix invalid rows in your spreadsheet and re-upload if needed.

4. 4. Download the ZIP

   Click Download ZIP to render each PNG one at a time and pack them into bulk-qr-codes.zip. PNG files include your frame, label, and background when selected.

5. 5. Test before printing

   Open a few PNG files from the ZIP and scan them with your phone at the size you plan to print. Confirm WiFi joins, links open, LINE/WhatsApp opens, and vCard saves correctly.

Common use cases

• Thai restaurant — 10 table menu QR codes (table-01 … table-10) linking to a Google Sheet or PDF in one ZIP.
• Shop or cafe — 10 LINE counter stickers (line-01 … line-10) with the same add-friend link and different frame labels.
• Hotel — WiFi per room for 10 rooms (room-101 … room-110) with filenames that match room numbers.
• Restaurant — combine menu URLs plus WiFi and LINE rows in one CSV with a shared frame design.
• Events — WhatsApp support QR plus registration URLs for each session.

Design and print tips

• Use error correction level Q or H when adding a logo so codes remain scannable.
• Keep contrast strong between QR dots and the background.
• Prefer short, stable URLs — fewer characters produce easier-to-scan codes.
• Name files clearly (table-01, room-305) so print shops know which PNG goes where.
• For more than 50 codes, export in batches and keep the same design settings each time.

Troubleshooting