How many QR codes can I generate at once?

You can generate up to 50 QR codes in a single batch. Each QR code is labeled with its source text.

Are my QR codes stored anywhere?

No. All QR codes are generated directly in your browser. Nothing is sent to any server.

What CSV format should I use?

One value per row works out of the box. For named files, use two columns: filename (no extension) in the first, content to encode in the second. Save the file as UTF-8 so accented letters, CJK characters and emoji encode correctly.

How fast is bulk generation?

Expect roughly 200–500 codes per minute depending on your device and the data complexity. Batches run in a Web Worker so the tab stays responsive, with a progress bar; SVG is marginally faster to generate than PNG.

Should I download SVG or PNG for a big batch?

SVG scales to any print size with no artifacts and is slightly faster to generate, ideal for labels. PNG produces smaller individual files, which helps when a batch runs into the thousands. All files arrive zipped together.

Do the bulk codes expire or get tracked?

No. Every code is a static QR with its data encoded directly — no redirect, no expiry and no scan tracking. They keep working as long as the destinations behind them stay live.

What is the practical limit for browser-based batches?

A few thousand codes is comfortable; tens of thousands gets very slow because all the work happens in your browser's memory on your CPU. For enterprise-scale runs in the tens of thousands, a server-side generator is the better fit.

Bulk QR Code Generator — Create Multiple QR Codes

How to use Bulk QR Code Generator

Generate hundreds of QR codes at once from a CSV file or pasted list — all processed in your browser with no data uploaded to any server. Ideal for product labels, conference badges, event tickets, loyalty cards, and inventory management. Download all codes as individual files in a ZIP archive, ready for printing.

Prepare a CSV file with one URL or text value per row (or paste a list).
Upload the CSV or paste your list into the input area.
Configure shared settings: size, error correction, file format (SVG or PNG).
Click "Generate All" — QR codes are created sequentially in the browser.
Download all codes as a ZIP archive with filenames based on the input values.

Your data never leaves your device — 100% private processing.

CSV format and field mapping

A simple CSV with one column of URLs or text values works out of the box. For named files, use a two-column CSV: the first column is the filename (without extension), and the second is the content to encode. Advanced mode supports additional columns for per-QR settings like colors or error correction level. UTF-8 encoding is required for non-ASCII characters like accented letters, CJK characters, or emoji.

Performance at scale

Browser-based batch generation can produce approximately 200–500 QR codes per minute depending on the device and QR complexity. For batches over 1,000 items, the process runs in a Web Worker to keep the UI responsive, with a progress bar showing completion percentage. SVG files are slightly faster to generate than PNG files. For enterprise-scale batches (tens of thousands), a server-side solution will be more appropriate.

Batch size	Estimated time	Recommended format	Notes
1–50	<5 seconds	SVG or PNG	Instant for most devices
51–500	10–60 seconds	SVG preferred	Progress bar shown
501–2,000	1–5 minutes	SVG	Web Worker keeps UI responsive
2,001–10,000	5–25 minutes	PNG (smaller files)	Consider server-side for speed
10,000+	Very slow	Server-side solution	Not recommended in browser

Worked examples

CSV of URLs

Inputs: CSV with 200 product URLs

Result: 200 QR files delivered in one ZIP (~30–60 s)

Named files

Inputs: two-column CSV: filename, content

Result: each code named per row for easy sorting

Glossary

CSV: Comma-Separated Values — a plain text format where each line is a data record and fields are separated by commas.
ZIP archive: A compressed file container that bundles multiple files together, commonly used for batch downloads.
Web Worker: A browser feature that runs JavaScript in a background thread, keeping the main UI responsive during heavy computations.
UTF-8: The dominant character encoding standard that supports virtually all characters from all writing systems.

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Bulk QR Code Generator

How to use Bulk QR Code Generator

CSV format and field mapping

Performance at scale

Worked examples

Glossary

Related reading

Frequently Asked Questions

Why use Bulk QR Code Generator?

Common use cases

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