QR Code for WeChat
A QR code generated by QRSen that links to a WeChat-related URL is a fully standard, spec-compliant QR code, and WeChat's own in-app scanner, as well as any phone's default camera, can read it without issue, because WeChat reads ordinary QR codes rather than a proprietary format like Snapchat's Snapcode. What QRSen cannot do is generate a code that lets someone scan-to-add you as a WeChat contact, since that specific type of code has to be created from inside the WeChat app itself, tied to your account session. For marketing to a WeChat-using audience, QRSen works well for linking to a WeChat Official Account's public page or any other URL you control.
WeChat is less a single app than an entire ecosystem, and QR codes sit at the center of nearly all of it. People scan codes to add contacts, follow Official Accounts, open Mini Programs (WeChat's in-app micro-apps used for everything from ordering food to paying at a register), and join group chats through a shared invite code. In China and among WeChat-using communities elsewhere, scanning a code is often the default way to connect with a business or a person, more so than exchanging a phone number or a link typed out by hand. Because of this, WeChat's own built-in scanner, accessible from the app's main screen, is the dominant way WeChat QR codes actually get scanned in practice, similar in spirit to how Snapchat users mostly scan Snapcodes from inside Snapchat itself.
The good news, technically speaking, is that WeChat does not require a proprietary visual format the way Snapchat does. A Snapcode has to be generated by Snapchat because it embeds a ghost logo and a scan pattern that only Snapchat's scanner reliably reads. WeChat QR codes, by contrast, are ordinary QR codes under the hood — the same black-and-white module grid, the same error correction, the same specification used for a website link or a WiFi password. That means a QR code QRSen generates, pointing to any public URL, will scan correctly in WeChat's in-app scanner exactly as it would in any other camera app. The limitation with WeChat has nothing to do with code format and everything to do with what the code is allowed to point to.
The one thing QRSen cannot produce is a code that adds someone as a WeChat contact when scanned. WeChat's Add Contact QR codes are generated from inside the app itself, under Profile > My QR Code, and each one is tied to that specific account's session on WeChat's own backend — there is no public web address, like a wechat.com/add/username link, that a third-party tool could encode instead. This is a deliberate account-security measure, not a technical gap QRSen is missing. If what you actually need is a code that lets people add you personally on WeChat, the code you want already exists on your phone, inside the WeChat app, and sharing that is the correct approach rather than generating a new one elsewhere.
Where QRSen is genuinely useful is linking to any public WeChat-related destination you control, most commonly a WeChat Official Account's public profile or article page, or a general business URL you want a WeChat-using audience to land on. A restaurant with an Official Account, for example, can put a QRSen-generated code on a menu or storefront sign pointing to that account's public page; a business without any WeChat presence at all can point a code at their own website, knowing WeChat's scanner will still open it correctly in its built-in browser. It is not a scan-to-add-contact code, and it should not be presented as one, but it is a legitimate, fully functional way to reach WeChat users with marketing material.
To generate one, choose the URL content type in QRSen, paste in the Official Account link, article URL, or website address, and download the code as an SVG for print materials or a high-resolution PNG for digital use. Since QRSen's codes are static, the destination is encoded directly into the pattern rather than routed through a redirect, so there's no expiry, no scan limit, and no account needed to generate or reuse it. That also means the URL itself needs to be the final, correct link before printing, because a static code cannot be repointed later — double-check the destination, particularly for printed materials like packaging or signage that will stay in circulation for a while.