{"id":1095,"date":"2016-07-14T15:44:20","date_gmt":"2016-07-14T15:44:20","guid":{"rendered":"http:\/\/www.vocso.com\/blog\/?p=1095"},"modified":"2026-04-08T11:00:05","modified_gmt":"2026-04-08T05:30:05","slug":"what-is-qr-code-or-quick-response-barcode","status":"publish","type":"post","link":"https:\/\/www.vocso.com\/blog\/what-is-qr-code-or-quick-response-barcode\/","title":{"rendered":"What is QR Code or Quick Response Barcode?"},"content":{"rendered":"<div style=\"margin-top: 0px; margin-bottom: 0px;\" class=\"sharethis-inline-share-buttons\" ><\/div>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title ez-toc-toggle\" style=\"cursor:pointer\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.vocso.com\/blog\/what-is-qr-code-or-quick-response-barcode\/#what-is-a-qr-code\" >What is a QR Code?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.vocso.com\/blog\/what-is-qr-code-or-quick-response-barcode\/#how-does-qr-code-work\" >How does QR Code Work?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.vocso.com\/blog\/what-is-qr-code-or-quick-response-barcode\/#some-interesting-usages%e2%80%a6\" >Some Interesting Usages&#8230;<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.vocso.com\/blog\/what-is-qr-code-or-quick-response-barcode\/#whatsapp-web-qr-code-scan\" >Whatsapp Web QR Code Scan<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.vocso.com\/blog\/what-is-qr-code-or-quick-response-barcode\/#qr-code-based-cash-lesh-payments\" >QR Code Based Cash-lesh Payments<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.vocso.com\/blog\/what-is-qr-code-or-quick-response-barcode\/#advertisingbillboards\" >Advertising\/Billboards<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.vocso.com\/blog\/what-is-qr-code-or-quick-response-barcode\/#device-registration-product-identification-configuration\" >Device registration \/ Product Identification &amp; Configuration<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.vocso.com\/blog\/what-is-qr-code-or-quick-response-barcode\/#ticketspasses\" >Tickets\/Passes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.vocso.com\/blog\/what-is-qr-code-or-quick-response-barcode\/#certificates\" >Certificates<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.vocso.com\/blog\/what-is-qr-code-or-quick-response-barcode\/#how-to-generate-qr-codes%e2%80%a6\" >How to generate QR Codes&#8230;<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"what-is-a-qr-code\"><\/span>What is a QR Code?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>QR Code is&nbsp;an odd-looking,&nbsp;machine-readable,&nbsp;square-shaped graphic label. QR Code is an acronym for Quick Response Code. It&#8217;s an&nbsp;extension of the traditional bar code. &nbsp;It was initially developed by Japanese automakers to track the auto components. Bar codes usually store numbers and letters and have short limits, whereas QR codes can accommodate comparatively larger amounts of data.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"how-does-qr-code-work\"><\/span>How does QR Code Work?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>These graphic labels are easily scanned by scanners or apps. Apps usually use a camera to capture the image of the QR code. It then decodes the code and reads the underlying information. Apps can process the information further based on the usage.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"some-interesting-usages%e2%80%a6\"><\/span>Some Interesting Usages&#8230;<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"whatsapp-web-qr-code-scan\"><\/span>Whatsapp Web QR Code Scan<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Many mobile apps use the qr code to connect to it&#8217;s web versions. Here is an example of how Whatsapp for web works. When a user visits web.whatsapp.com&nbsp;, he is presented with a dynamically generated QR code. &nbsp;Whatsapp mobile app has an option called &#8220;Whatsapp Web&#8221;, which has the ability to scan this QR Code. The moment you scan the code in your browser, whatsapp web server authenticates you and opens the whatsapp in your web browser. This offers you the ability to use the Whatsapp from within your web browser. The entire process does not require any login or lengthy authentication.<\/p>\n\n\n<div class=\"wp-block-image is-style-default\">\n<figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"934\" height=\"412\" src=\"https:\/\/www.vocso.com\/blog\/wp-content\/uploads\/2016\/07\/whatsapp-web-qr-code.png\" alt=\"whatsapp web - qr code\" class=\"wp-image-1098\" srcset=\"https:\/\/www.vocso.com\/blog\/wp-content\/uploads\/2016\/07\/whatsapp-web-qr-code.png 934w, https:\/\/www.vocso.com\/blog\/wp-content\/uploads\/2016\/07\/whatsapp-web-qr-code-300x132.png 300w, https:\/\/www.vocso.com\/blog\/wp-content\/uploads\/2016\/07\/whatsapp-web-qr-code-624x275.png 624w\" sizes=\"auto, (max-width: 934px) 100vw, 934px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"qr-code-based-cash-lesh-payments\"><\/span>QR Code Based Cash-lesh Payments<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>While QR codes enable quick, device-to-device transfers, merchants can elevate checkout by pairing them with <a href=\"https:\/\/www.weareplanet.com\/in-person-payments\" target=\"_blank\" rel=\"noopener\" title=\"\">secure point-of-sale payments<\/a> that unite contactless, chip &amp; PIN, and digital wallets in one platform\u2014delivering faster in-person transactions, offline resilience during network disruptions, and consolidated reporting across locations<\/p>\n\n\n\n<p>This is another interesting use of QR Code, thats rapidly catching up. Every user is given a unique QR&nbsp;code, which can be scanned by the other user to transfer money.<\/p>\n\n\n<div class=\"wp-block-image is-style-default\">\n<figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"451\" src=\"https:\/\/www.vocso.com\/blog\/wp-content\/uploads\/2016\/07\/paytm-qr-code-1.jpg\" alt=\"cashless payment using paytm qr code\" class=\"wp-image-1099\" srcset=\"https:\/\/www.vocso.com\/blog\/wp-content\/uploads\/2016\/07\/paytm-qr-code-1.jpg 1024w, https:\/\/www.vocso.com\/blog\/wp-content\/uploads\/2016\/07\/paytm-qr-code-1-300x132.jpg 300w, https:\/\/www.vocso.com\/blog\/wp-content\/uploads\/2016\/07\/paytm-qr-code-1-624x274.jpg 624w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"advertisingbillboards\"><\/span>Advertising\/Billboards<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Advertisers club a QR code along with their ads\/offers on billboards, newspapers or magazines. People on the move, do not have to type in the whole url to find out more details or to avail the offer. All they need to do is to simply scan the very clearly displayed QR code, which lands them directly on the web page that presents more information. All this without pressing any single keystroke. This also makes it easy for the advertisers to track the impact.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"device-registration-product-identification-configuration\"><\/span>Device registration \/ Product Identification &amp; Configuration<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Device manufactures have started using QR code for easy configuration of devices. For example, IP cameras come with a QR Code sticker printed on the bottom which can be scanned by the accompanying app that reads the stored configuration data&nbsp;and easily configures the device for use.<\/p>\n\n\n<div class=\"wp-block-image is-style-default\">\n<figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"571\" src=\"https:\/\/www.vocso.com\/blog\/wp-content\/uploads\/2016\/07\/TN60W_LAN.jpg\" alt=\"\" class=\"wp-image-1100\" srcset=\"https:\/\/www.vocso.com\/blog\/wp-content\/uploads\/2016\/07\/TN60W_LAN.jpg 800w, https:\/\/www.vocso.com\/blog\/wp-content\/uploads\/2016\/07\/TN60W_LAN-300x214.jpg 300w, https:\/\/www.vocso.com\/blog\/wp-content\/uploads\/2016\/07\/TN60W_LAN-624x445.jpg 624w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"ticketspasses\"><\/span>Tickets\/Passes<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Event companies provide digitally generated tickets to customers. The tickets can be downloaded on mobiles or printed on paper. The tickets contain a QR Code. When the person having a ticket enters the event venue, the organizers have an app that can read barcodes printed on the ticket and validate it with the customer&#8217;s data available on the server. This helps to know if the ticket is genuine and has not been used before. If it has been used already, the app will indicate that the person has already checked in.<\/p>\n\n\n<div class=\"wp-block-image is-style-default\">\n<figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"825\" height=\"411\" src=\"https:\/\/www.vocso.com\/blog\/wp-content\/uploads\/2016\/07\/event-ticket-with-qr-code.jpg\" alt=\"event ticket with qr code\" class=\"wp-image-1101\" srcset=\"https:\/\/www.vocso.com\/blog\/wp-content\/uploads\/2016\/07\/event-ticket-with-qr-code.jpg 825w, https:\/\/www.vocso.com\/blog\/wp-content\/uploads\/2016\/07\/event-ticket-with-qr-code-300x149.jpg 300w, https:\/\/www.vocso.com\/blog\/wp-content\/uploads\/2016\/07\/event-ticket-with-qr-code-624x310.jpg 624w\" sizes=\"auto, (max-width: 825px) 100vw, 825px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"certificates\"><\/span>Certificates<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Our education startup TutorCity.in\/assessments makes an interesting use of QR Codes. The free&nbsp;assessment module allows learners to assess their skills using our multiple choice based questionnaires contributed by various tutors. At the end, they are awarded with a certificate, which is dynamically generated by the system containing their scores and details, which they can print and present to their teachers or interviewers. The digitally generated certificate contains a tiny QR Code. The interviewers can easily scan the QR Code to find out if the certificate is genuine and verify their scores and even see their answers for various questions.<\/p>\n\n\n<div class=\"wp-block-image is-style-default\">\n<figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"903\" height=\"520\" src=\"https:\/\/www.vocso.com\/blog\/wp-content\/uploads\/2016\/07\/tutorcity-assessment-certificate-qr-code.png\" alt=\"tutorcity assessment certificate qr code\" class=\"wp-image-1102\" srcset=\"https:\/\/www.vocso.com\/blog\/wp-content\/uploads\/2016\/07\/tutorcity-assessment-certificate-qr-code.png 903w, https:\/\/www.vocso.com\/blog\/wp-content\/uploads\/2016\/07\/tutorcity-assessment-certificate-qr-code-300x172.png 300w, https:\/\/www.vocso.com\/blog\/wp-content\/uploads\/2016\/07\/tutorcity-assessment-certificate-qr-code-624x359.png 624w\" sizes=\"auto, (max-width: 903px) 100vw, 903px\" \/><\/figure>\n<\/div>\n\n\n<p>The list does not end here. The usage&nbsp;of a QR code is limited only by your imagination. At VOCSO, we actively use the QR code on our business&nbsp;cards and &nbsp;identity card for employees. Please let us know via comment, if you&#8217;ve come up with some other interesting usage.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"how-to-generate-qr-codes%e2%80%a6\"><\/span>How to generate QR Codes&#8230;<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>These codes can be generated programmatically&nbsp;as part of web or mobile applications and aid in easing the workflow for the end users. However, if you simply want to generate some QR codes for lighter usage like printing on business cards, brochures, etc, there are some free online services that will allow you to create them quickly.  If you want to generate a QR code through an online generator then I would like to recommend Adobe Express QR generator, a QR code maker free online service for all your collateral and campaigns.<\/p>\n\n\n\n<p>Go QR<\/p>\n\n\n\n<p>Visualead<\/p>\n\n\n\n<p><a href=\"https:\/\/www.unitag.io\/qrcode\" target=\"_blank\" rel=\"nofollow noopener\">Unitag QR<\/a><\/p>\n\n\n\n<p>Scanova QR Code Solutions<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is a QR Code? QR Code is&nbsp;an odd-looking,&nbsp;machine-readable,&nbsp;square-shaped graphic label. QR Code is an acronym for Quick Response Code. It&#8217;s an&nbsp;extension of the traditional bar code. &nbsp;It was initially developed by Japanese automakers to track the auto components. Bar codes usually store numbers and letters and have short limits, whereas QR codes can accommodate <\/p>\n","protected":false},"author":23,"featured_media":4393,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[66,67],"tags":[346,344,349,345,347,350,348,342,351,343],"class_list":["post-1095","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-marketing","category-technology","tag-advertising-qr","tag-barcode-technology","tag-certificate-qr-code","tag-digital-payments","tag-event-tickets-qr","tag-mobile-scanning","tag-product-identification-qr","tag-qr-code","tag-qr-code-generator","tag-quick-response-code"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.vocso.com\/blog\/wp-json\/wp\/v2\/posts\/1095","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vocso.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vocso.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vocso.com\/blog\/wp-json\/wp\/v2\/users\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vocso.com\/blog\/wp-json\/wp\/v2\/comments?post=1095"}],"version-history":[{"count":2,"href":"https:\/\/www.vocso.com\/blog\/wp-json\/wp\/v2\/posts\/1095\/revisions"}],"predecessor-version":[{"id":34046,"href":"https:\/\/www.vocso.com\/blog\/wp-json\/wp\/v2\/posts\/1095\/revisions\/34046"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.vocso.com\/blog\/wp-json\/wp\/v2\/media\/4393"}],"wp:attachment":[{"href":"https:\/\/www.vocso.com\/blog\/wp-json\/wp\/v2\/media?parent=1095"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vocso.com\/blog\/wp-json\/wp\/v2\/categories?post=1095"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vocso.com\/blog\/wp-json\/wp\/v2\/tags?post=1095"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}