Bulk QR Code Generator

Q: How many QR codes can I generate at once?

500 per run. That limit is about your browser rather than the encoder — every code is generated, rendered and zipped in the page itself, so a very large batch would consume memory and freeze the tab. If you paste more than 500 rows the tool uses the first 500 and tells you how many were left, so you can split the list and run it again.

Q: Can I control the filenames?

Yes. Put a name, then a comma, then the value: 'Table 4, https://example.com/menu?t=4' produces Table 4.png. Only the first comma splits the line, so values containing commas — which query strings often do — stay intact. Without a name, the value itself becomes the filename with unsafe characters replaced, and duplicates get a numeric suffix so nothing is silently overwritten.

Q: What is the CSV file in the ZIP for?

It maps every generated file back to its label and the exact value it encodes. Once you have a folder of images, the filenames alone will not tell you reliably which is which, and that mapping is exactly what a mail-merge or label template needs to place the right code next to the right row. Keep it with the images.

Q: Why does the tool warn about mixed code sizes?

Because batches are almost always printed at one size, and QR codes in a batch are not all equally complex. A short link makes a version 2 code with large modules; a long tracked URL might make a version 6 with much smaller ones. Print both at 20mm and the short one scans beautifully while the long one fails. The analysis finds the densest code in your batch and gives you the minimum size the whole sheet needs.

Q: Should I download PNG or SVG?

SVG for print, if your label or design software accepts it — the codes are vector, so they stay perfectly sharp at any size and the files are tiny. PNG when you need raster images, for example for a system that only accepts bitmaps. At 1024px a PNG is comfortably enough for most label printing.

Q: Is my list uploaded anywhere?

No. The encoding, the image rendering and the ZIP construction all happen in your browser — there is no server involved at any point, and nothing is stored after you close the page. That matters here more than on most tools, since a bulk list is often customer or inventory data.

Paste a list and generate hundreds of QR codes at once, downloaded as a single ZIP.

Your list — one per line

Put a name before a comma to control the filename. Everything after the first comma is the value, so links with query parameters are safe.

Content type

Error correction

Download

Format

PNG size

The archive includes index.csv mapping every filename back to the value it encodes — that is what you merge against in a print template.

Paste a list to generate codes.

What It Does

This tool takes a list — one value per line, optionally named — and generates a QR code for each, then packages them into a single ZIP with a CSV index mapping every filename back to the value it encodes. It uses the same encoder as the single-code generators here, so the output is identical; what it adds is the thing that actually matters across a batch, which is whether all your codes can share one printed size.

When to Use It

You are printing table numbers for a restaurant and want one code per table, each with its own tracking parameter.
You have a product spreadsheet and need a code per SKU to drop into a label template.
You are running an event and need a code per attendee, seat or session.
You manage assets or equipment and want a code per item that links to its record.

Worked Examples

Named rows — the filenames come out labelled

The name before the comma becomes the filename, so the ZIP arrives sorted and readable instead of code-1.png, code-2.png. Note the values keep their query parameters — only the first comma splits.

Plain list — values used as filenames

With no names, each value names its own file with the unsafe characters replaced. Fine for a quick batch, harder to match up later than named rows.

Mixed lengths — the case the analysis is for

Two very different value lengths give two different QR versions. The analysis names the densest one and the size the whole sheet has to be printed at, which is the mistake this tool exists to prevent.

Common Mistakes

Printing every code at the size the shortest one needs. QR complexity scales with the value, so a batch of mixed-length links produces codes of different densities. Print them all at one size chosen for the simplest, and the longest values fail while the rest scan — the analysis names the densest code so you can size for it.
Losing track of which file is which. Filenames alone do not tell you what a code encodes, which makes merging into a label template guesswork. The included index.csv maps filename to label to encoded value; keep it with the images.
Pasting a spreadsheet column with a header row. The header becomes a QR code encoding the word 'URL' or similar. Delete it before pasting.
Assuming duplicate values are harmless. Two rows with the same value produce two identical codes under different names, which is usually a copy-paste error rather than intent — the analysis counts them so you can check.
Generating thousands in one go. This runs entirely in your browser tab, so very large batches are limited by memory rather than by the tool. The cap is 500 per run; split larger jobs.

Features

Up to 500 codes per run

Optional per-row names that become filenames

Links

text

phone

Instagram and YouTube values

PNG at three sizes or scalable SVG

Single ZIP download with a CSV index

Per-row validation with the failures named

Batch density analysis so one print size fits all

Runs entirely in your browser with no upload

How to Use

1. Paste your list, one value per line. 2. Optionally put a name and a comma before each value to control the filenames. 3. Pick the content type and error correction level. 4. Read the batch analysis — particularly the print size for the densest code. 5. Choose PNG or SVG and download the ZIP, keeping index.csv alongside the images.

Frequently Asked Questions

How many QR codes can I generate at once?

Can I control the filenames?

What is the CSV file in the ZIP for?

Why does the tool warn about mixed code sizes?

Should I download PNG or SVG?

Is my list uploaded anywhere?

Related Tools

QR Code Generator Barcode Generator

Everything runs in your browser, including the ZIP — your list is never uploaded and nothing is stored. The 500-row cap per run exists because the work happens in your browser tab; larger jobs should be split into batches. Always print and scan one code from a batch before committing to the full run.