BoldSphere Lab — Free Marketing Tools QR Code Generator URL · vCard · WiFi · Email · SMS · Twitter · Bitcoin Custom Colours & Logo Upload High-Resolution PNG Download — 1× & 4× Your Creative Growth Partner BoldSphere Lab — Free Marketing Tools QR Code Generator URL · vCard · WiFi · Email · SMS · Twitter · Bitcoin Custom Colours & Logo Upload High-Resolution PNG Download — 1× & 4× Your Creative Growth Partner
BoldSphere Lab

QR Code
Generator

Generate custom QR codes with advanced branding, colours, logos and high-resolution downloads — built for serious businesses.

Step 1 — Choose QR Code Type
🔗URL
👤vCard
📝Text
✉️Email
📶WiFi
💬SMS
𝕏Twitter/X
₿Bitcoin
Step 2 — Enter Your Content
Step 3 — Customise Design
📷 Click to upload logoJPEG · PNG · WebP | Max 5 MB
logo preview
260 px
Live Preview
📱Your QR code will appear here
Size260 px
FormatPNG
TypeURL
ECLM
Frequently Asked Questions
1. What QR code types does this generator support?

This generator supports eight types: URL, vCard (digital business card), plain text, email (with subject and body), WiFi credentials, SMS, Twitter/X posts, and Bitcoin payments — covering the most common business use cases.

2. Can I add my logo to the QR code?

Yes — upload a JPEG, PNG, or WebP logo (max 5 MB) and it will be centred over the QR code. Use High (30%) error correction for best results with logos, as it ensures the code remains scannable even with the logo overlay.

3. What download formats are available?

Download as PNG at 1× (standard) or 4× (high-resolution) for crisp printing on business cards, signage, packaging, or merchandise.

4. Is my data safe and private?

Everything happens entirely in your browser — no data is sent to any server. Your URLs, vCard details, WiFi passwords, and other content stay completely private on your device.

5. What's the best error correction level to use?

Medium (15%) is recommended for standard QR codes. Choose Quartile or High if you're overlaying a logo, as these allow the code to remain scannable even when part of it is covered.

Need More Marketing Tools?

BoldSphere Lab offers a growing suite of free tools — meme generators, typography tools, QR code builders, barcode generators, and more — all built for Australian businesses.

Browse All Tools Contact Us
BoldSphere Lab — Free Marketing Tools Professional Barcode Studio EAN-13 · EAN-8 · UPC · Code 128 · Code 39 · ITF-14 · Codabar Bulk / Batch Mode — Up to 50 Barcodes Download SVG · PNG · JPG — 100% Client-Side Your Creative Growth Partner BoldSphere Lab — Free Marketing Tools Professional Barcode Studio EAN-13 · EAN-8 · UPC · Code 128 · Code 39 · ITF-14 · Codabar Bulk / Batch Mode — Up to 50 Barcodes Download SVG · PNG · JPG — 100% Client-Side Your Creative Growth Partner
BoldSphere Lab

Barcode
Studio

Generate retail, logistics and industrial barcodes in-browser — no server, no upload, no tracking.

📦 Step 1 & 2 — Format & Content
Format
EAN-13: enter 12 digits  |  EAN-8: 7 digits  |  UPC-A: 11 digits. Check digit added automatically.
Format
Format
Format
For QR codes a separate library is needed. This tool generates linear 1D barcodes.
Barcode Content
Please enter valid barcode content.
Bulk / Batch Mode Paste one value per line — generates up to 50 barcodes
🎨 Step 3 — Customise Appearance
Bar Colour
Background
Bar Width (px)
2
Bar Height (px)
100
Font Size (px)
16
Margin (px)
10
Show text valueDisplay human-readable number below bars
Remove quiet zoneStrips outer margins — some scanners may reject
⚡ Preview & Export
Your barcode will appear here
Frequently Asked Questions
1. What barcode formats are supported?

The studio supports EAN-13, EAN-8, UPC-A, UPC-E, Code 128, Code 39, Code 93, ITF-14, MSI Plessey, Codabar, and Pharmacode — covering retail, logistics, healthcare, and industrial use cases.

2. How do EAN-13 and UPC check digits work?

Enter 12 digits for EAN-13, 7 digits for EAN-8, or 11 digits for UPC-A — the check digit is calculated and appended automatically. You do not need to include it.

3. What is Bulk / Batch Mode?

Enable the toggle and paste up to 50 values, one per line. The studio generates all barcodes at once and provides individual SVG download buttons for each one.

4. Is my data safe?

Yes — everything runs entirely in your browser. No data is transmitted to any server. Your SKUs, serial numbers, and product codes never leave your device.

5. What download formats are available?

Download as SVG (scalable, print-ready), PNG, or JPG. SVG is recommended for professional printing as it remains sharp at any size.

Need More Marketing Tools?

BoldSphere Lab offers a growing suite of free tools — meme generators, QR code builders, barcode generators, typography tools and more — all built for Australian businesses.

Browse All Tools Contact Us