A QR code (Quick Response code) is a two-dimensional barcode that stores data — URLs, text, WiFi credentials, contact info (vCard), payment details (UPI), and more. When scanned with a smartphone camera or QR reader app, it instantly opens the encoded information. QREndlessPro supports 1,421+ QR code types across 38 categories.

Is QREndlessPro free?

Yes, QREndlessPro is 100% free forever. There are no sign-ups, no subscriptions, no watermarks, and no hidden fees. All 7 tools (Generator, Bulk Generator, Customizer, Scanner, Enhancer, Decoder, and Expiry Checker) work entirely in your browser — your data never leaves your device.

What formats does QREndlessPro support?

QREndlessPro supports 7 export formats: PNG, SVG, PDF, EPS, JPEG, WebP, and Base64. QR codes can be generated in any size from 100px to 4096px, with custom colors, logos, and error correction levels (L, M, Q, H). Bulk QR codes can be exported as print-ready Grid PDFs or ZIP archives.

How do I create a QR code for WiFi?

Select 'WiFi' as the QR type in QREndlessPro, enter your network name (SSID), password, and encryption type (WPA/WEP). Click Generate — your WiFi QR code is ready instantly. Guests can scan it to connect without typing the password. You can also bulk-generate WiFi QR codes for hotels, offices, or events.

Can I add my logo to a QR code?

Yes! QREndlessPro's Customizer tool lets you embed a logo in the center of your QR code. It automatically upgrades error correction to Level H so the QR code remains scannable even with 30% of the code covered. You can also add custom colors, gradients, dot styles, and branded frames.

How do I scan a QR code from an image?

Use QREndlessPro's Scanner tool — either drag & drop an image file or use your device camera. It reads QR codes and 13+ barcode formats (EAN-13, Code 128, UPC-A, Data Matrix, Aztec, PDF417, etc.). Bulk scanning is supported — upload multiple images and export results as CSV.

Is my data safe? Does QREndlessPro collect my information?

QREndlessPro is 100% browser-based — all QR code generation, scanning, and decoding happens on your device. Your data is never uploaded to any server. There are no accounts, no tracking, no data collection. The tool even works offline after the first load as a PWA (Progressive Web App).

Free · No Signup · No Watermark

Free Code 39 Extended Barcode Generator

Full ASCII Code 39. Generate free Code 39 Extended barcodes online — 100% browser-based, unlimited, no signup. Download as PNG or SVG.

Generate Code 39 Extended Barcode All Barcode Types

About the Code 39 Extended Barcode

Code 39 Extended is a barcode symbology. Full ASCII Code 39 QREndlessPro lets you generate unlimited Code 39 Extended barcodes for free, entirely in your browser — no server processing, no signup, no watermark.

Our Code 39 Extended generator uses the industry-standard BWIPP (Barcode Writer in Pure PostScript) engine, rendered 100% client-side via bwip-js. This means your data never leaves your device, and barcodes are generated instantly with print-ready accuracy.

Code 39 Extended Format

Data format:: Any ASCII text (full ASCII via shift pairs)
Sample data:: abc-123
Category:: Linear Codes
Export formats:: PNG, SVG

How to Generate a Code 39 Extended Barcode

Open the Generator

Click "Generate Code 39 Extended Barcode" — the tool opens with Code 39 Extended pre-selected.

Enter Your Data

Type the data to encode. Any ASCII text (full ASCII via shift pairs).

Download Free

Download as PNG for web or SVG for print. No watermark, no signup.

Open Code 39 Extended Generator

Why Generate Code 39 Extended Barcodes with QREndlessPro

Instant Generation

Code 39 Extended barcodes render instantly as you type. No waiting, no page reload.

100% Private

All generation happens in your browser. No data uploads. No tracking.

Free PNG + SVG

Download print-ready barcodes. No watermark, no attribution required.

Works Anywhere

Any device, any browser. Offline with PWA. No install needed.

Code 39 Extended Barcode FAQ

Is the Code 39 Extended barcode generator free?

Yes. No signup, no API key, no credit card. Generate unlimited Code 39 Extended barcodes free forever. Download as PNG or SVG with no watermark.

What data format does Code 39 Extended use?

Code 39 Extended requires: Any ASCII text (full ASCII via shift pairs). The sample "abc-123" is a valid example you can use to test generation immediately.

Can I download Code 39 Extended barcodes as SVG?

Yes. Download Code 39 Extended as PNG (raster for web) or SVG (vector, scalable for print). Both formats are free with no watermark.

Is my Code 39 Extended barcode data safe?

Yes. All Code 39 Extended barcode generation happens 100% in your browser. No data is sent to any server. Your information stays private and secure.

What is Code 39 Extended used for?

Full ASCII Code 39 Code 39 Extended is one of 104+ barcode types supported by QREndlessPro's free browser-based generator.