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QR Code Generator
Creates QR codes for links, WiFi, contacts, email, SMS and plain text, downloadable as PNG or…
WhatsApp QR Code Generator
Makes a QR code that opens a WhatsApp chat with your number and an optional pre-filled message, generated in your browser.
Generators
Nothing uploaded
No sign-up
Free, unlimited
Full international form, digits only.
Fill in the fields and press Generate.
In short
WhatsApp QR Code Generator is a free online tool on inputtesthub.com that makes a QR code that opens a WhatsApp chat with your number and an optional pre-filled message, generated in your browser. It needs no account, no download and no payment, and there is no daily usage limit. Everything is processed inside your own browser, so the data you paste is never uploaded to a server.
How to use the WhatsApp QR Code Generator
- Enter the number and any pre-filled message.
- Choose H if the code is going to print.
- Download the PNG.
About the WhatsApp QR Code Generator
The WhatsApp QR Code Generator makes a QR code that opens a WhatsApp chat with your number and an optional pre-filled message, generated in your browser. It runs as plain JavaScript inside the page, which means there is no upload step, no queue and no size limit imposed by a server — the only limit is your own device.
What people use it for
- Putting a scan-to-chat code on a shop counter or a flyer.
- Adding a WhatsApp code to a business card.
- Letting people start a conversation without typing a number.
Details
| Encodes | The same wa.me link the link generator makes |
|---|---|
| Error correction | L 7%, M 15%, Q 25%, H 30% recoverable |
| Use H, and never crop the white margin | |
| Runs | In your browser — the library is served from this site |
This encodes the link, not your identity — the code is just a picture of a URL. That also means it never expires and cannot be revoked, so a printed code with your personal number on a public poster stays live for as long as the poster does.
Where this tool stops
A very long pre-filled message makes the code too dense to scan reliably. If the code looks like noise, shorten the message.
Frequently asked questions
My printed QR code will not scan. Why?
Usually the quiet zone. The white margin around a QR code is part of the code, and a designer who crops it or places the code on a photograph breaks it. After that, size: a rough rule for print is that the code should be about one-tenth of the scanning distance, so 2 cm for arm's length and 30 cm for a code read across a room.
Should I use a coloured QR code?
You can, but keep the contrast high and keep the code darker than the background. Scanners look for dark modules on light; a light code on a dark background fails on many phones, and a mid-tone pair fails on most.
What does error correction actually do?
It adds redundancy so a damaged or partly covered code still reads. H recovers 30% of the code, which is what makes a logo in the centre possible — but every level up makes the code denser, so it needs to be printed larger.
Are there any usage caps on the WhatsApp QR Code Generator?
No charge and no sign-up. There is no free tier to run out of because there is no paid tier — inputtesthub.com is funded by advertising rather than by metering the page.
Is my data uploaded anywhere?
No. The WhatsApp QR Code Generator runs entirely in your browser using JavaScript. Because the work happens locally, the page also keeps working if your connection drops, and closing the tab is all it takes to discard everything.
What is the WhatsApp QR Code Generator used for?
In practice it gets used for three things: putting a scan-to-chat code on a shop counter or a flyer. Adding a WhatsApp code to a business card. Letting people start a conversation without typing a number. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
When is the WhatsApp QR Code Generator not the right tool?
A very long pre-filled message makes the code too dense to scan reliably. If the code looks like noise, shorten the message. Knowing where a tool stops being trustworthy matters more than the cases where it works.
Which values should I know?
Encodes is The same wa.me link the link generator makes. Error correction is L 7%, M 15%, Q 25%, H 30% recoverable. Print is Use H, and never crop the white margin. These are printed on the page itself, so you do not have to take them on trust.
Does the WhatsApp QR Code Generator work on a phone?
Yes. The page is responsive and the page works in Chrome, Safari, Firefox, Edge and Samsung Internet on both Android and iOS. There is no app to install and nothing to sign into.
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