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MrBober Barcode Generator
Free barcode and QR code generator
Create, customise, download and print individual codes or numbered label series directly in your browser.
QR code data
Choose the content type and complete the fields.
It can be a link, message, order number or any other text.
After scanning, the phone will offer to make a call.
Appearance Preview updates automatically
280 px
#111827
#ffffff
Top watermark Choose a logo
The selected logo appears above the preview. Click the preview or use “Open image / print”, then press Ctrl + P.
QR code preview
Barcode data
Choose a standard and enter a valid value.
CODE128 supports digits, letters and special characters.
90 px
Appearance SVG provides the highest quality
100%
Enlarges or reduces the complete barcode while keeping its proportions.
2.0
12 px
#111827
#ffffff
20 px
Top watermark Choose a logo
Click the preview or drag it to a new tab to open the complete code with the selected logo.
Series printing Create numbered labels automatically
100 labels will be created.
Each number becomes a separate label: 1, 2, 3 and so on up to the selected end number.
Barcode preview
Instant preview
Every change to the data or appearance is visible immediately.
PNG and SVG
Download files for printing, labels, websites and documents.
Practical guide
Create codes that remain easy to scan
The generator works locally in your browser. Use the instructions below to choose a barcode standard, prepare sequential labels and avoid the most common printing problems.
Choose the code type
Use a barcode for short identifiers used by scanners and warehouse systems. Use a QR code for links, text, email, phone numbers or Wi-Fi details.
Enter and verify the value
Check every character before printing. A correct-looking label can still open the wrong record when one digit or letter is missing.
Adjust the appearance
Keep strong contrast, leave a clear margin and avoid making barcode bars too narrow. SVG is the safest format when the label will be resized.
Test before bulk printing
Print one sample at the final size and scan it with more than one device. Only then print the full batch.
Barcode formats
Which barcode format should you choose?
The correct choice depends on the system that will read the label. When a workplace, retailer or software provider specifies a format, always follow that requirement.
| Format | Best for | Important notes |
|---|---|---|
| CODE128 | General labels, stock IDs and mixed text | Compact and flexible; supports letters, numbers and many symbols. |
| CODE39 | Warehouses, tools and internal asset labels | Easy to use but usually wider than CODE128 for the same value. |
| MSI | Numeric inventory and warehouse systems | Use only when the receiving system explicitly supports MSI. |
| Pharmacode | Specialist pharmaceutical packaging workflows | Not a general product barcode; it accepts a restricted numeric range. |
Sequential printing
Print labels numbered from 1 to 100
Open the Barcode tab, select a format and set the appearance first. In the series section, enter the start number, end number and step. A range of 1 to 100 with a step of 1 produces one label for every number.
Choose how many labels should fit on each A4 page. Use fewer labels per page for large warehouse labels and more labels per page for small identification stickers.
Read the full sequential-label guide
Print quality
A quick checklist for reliable scanning
Most scanning failures are caused by low contrast, insufficient blank space, distortion or printing at a size that is too small for the available scanner.
Use dark bars or modules on a light, plain background.
Keep an empty margin around the complete code.
Do not stretch the image in only one direction.
Prefer SVG when resizing or sending artwork to a printer.
Avoid glossy reflections, folds and curved label surfaces.
Test the final printed label, not only the screen preview.
Detailed guides
Learn more about barcodes, QR codes and label printing
These practical guides explain the decisions that affect readability, print quality and compatibility.
CODE128 or CODE39?
Compare two popular formats and choose the better option for your labels.
Read guideSequential labels from 1 to 100
Set a range, choose an A4 layout and test the first sheet.
Read guideWhy will my barcode not scan?
Diagnose contrast, margins, scaling, damage and format problems.
Read guideChoosing a QR code print size
Match code size and error correction to the scanning distance and material.
Read guideCreate a Wi-Fi QR code
Prepare network details safely and test connection behaviour before sharing.
Read guidePNG or SVG for labels?
Understand when a bitmap is convenient and when a vector file is safer.
Read guide
FAQ
Frequently asked questions
Are the entered values uploaded to a server?
The generator is designed to create codes in the browser. Do not enter confidential information unless you have reviewed the page and your organisation permits it.
Which file type is best for printing?
SVG is normally the safest choice when the code may be resized. PNG is convenient for documents and applications that do not accept SVG.
Can I print a series such as 1 to 100?
Yes. Use the barcode series fields to define the start, end and step, then select the number of labels per A4 page.
Why does a code scan on screen but fail after printing?
The printed version may be too small, blurred, stretched, low contrast or placed too close to other graphics. Test the final material and size.
Does the generator create official retail product numbers?
No. The tool visualises values you provide. Official product identifiers and retailer requirements must be obtained and managed through the relevant organisation.