QR Code Generator: Free Static QR Codes That Never Expire

What is a QR code generator?

A QR code generator is a tool that turns a link, text or contact details into a square barcode that phone cameras can scan. QR stands for Quick Response; the format was invented by Denso Wave in 1994 and is standardized as ISO/IEC 18004.

This QR code generator makes static codes. The data is written straight into the pattern of black and white squares, called modules, with no short link or redirect in between. Once downloaded, the image works on its own: no account, no trial and no connection to Ideluma.

How to make a QR code in 4 steps

To make a QR code, choose the content type, fill in the fields, adjust the design and download the file. The preview redraws as you type, so you can generate a QR code and check it in under a minute.

1. Choose the content. Click Link, Text, Wi-Fi, Email, Phone, SMS, WhatsApp or Contact above the form.
2. Fill in the fields. Paste an address into Website URL, or enter the Network name (SSID) and Password for Wi-Fi. If a link has no https://, the tool warns you, because some phones won’t open it as a link.
3. Style the code. Set Code color and Background, pick a Modules style (Square, Rounded or Dots) and Corners, and press Add logo to place your logo in the center.
4. Download. Choose a PNG size from 512 to 4096 px and press Download PNG, or press Download SVG to get a vector file for print.

Under the preview, a line such as Version 3 · 29 × 29 modules · error correction M shows how dense the code is.

Static vs dynamic QR codes: which one do you need?

A static QR code stores the data inside the image and never expires, while a dynamic QR code stores a short link to the provider’s server that can be edited but stops working when the subscription ends.

A static code fits most jobs: a Wi-Fi password, a contact card, a menu or a product page. Every code from this static QR code generator is permanent, because no server sits between the phone and your content.

A dynamic code makes sense only when the destination will change after printing or you need scan counts. Ideluma doesn’t make dynamic codes, but you can get both benefits yourself. Point the code at a page on your own domain and move visitors later with the 301 Redirect Generator. Add UTM tags with the UTM Builder so scans appear in Google Analytics 4.

QR code types you can create

You can create eight types of QR code here, each in the format that phone cameras read without an extra app.

• Link: any URL, such as a website, an online menu, a product page or a Google Form. Use it for a business, a flyer or packaging.
• Text: a short note, a serial number or instructions that show up on screen.
• Wi-Fi: joins a network without typing the password.
• Email: a mailto: link with an optional Subject and Message.
• Phone: a tel: link that opens the dialer.
• SMS: a ready message in the format SMSTO:number:message.
• WhatsApp: opens a chat through https://wa.me/<number>?text=<message>, with the number in international format, digits only.
• Contact: a vCard 3.0 QR code with First name, Last name, Phone number, Email address, Company, Job title and Website, saved to the phone in one tap.

How to create a Wi-Fi QR code

Choose Wi-Fi, enter the Network name (SSID) and Password, select the Security type and download the code; guests scan it and join without typing anything. The Security list offers WPA / WPA2 / WPA3, WEP and None, and a Hidden network switch covers networks that don’t broadcast their name.

The tool writes the standard Wi-Fi string into the code:

WIFI:T:WPA;S:CafeGuest;P:coffee2026;;

Hidden networks get H:true; before the final semicolon. Special characters in the name or password (\ ; , : ") are escaped with a backslash.

The password is stored in the image as plain text, and anyone who scans the code can read it. Print Wi-Fi codes for a guest network, not for the network your office computers use. The password itself is never sent anywhere: the code is generated in your browser.

How to add a logo and colors without breaking the scan

A branded code scans reliably when it keeps a dark pattern on a light background, a modest logo and enough error correction. A free QR code generator with logo should check this for you, so this one shows warnings before you download.

• Keep the contrast high. Use a dark Code color on a light Background. The tool warns about low contrast and about inverted codes, which many scanners can’t read.
• Let error correction cover the logo. QR codes use Reed–Solomon error correction with four levels: L 7%, M 15%, Q 25% and H 30%. Auto uses M, switches to H as soon as you add a logo, and goes higher when that fits in the same code size.
• Keep the logo modest. Logo size runs from 10% to 30% of the code width, 22% by default. The modules under the logo are cleared and the logo sits on a small plate in the background color.
• Leave the quiet zone. Every file includes a margin of 4 modules around the code. Don’t crop it in your layout.
• Mind transparency. With Transparent background turned on, place the code on a light surface only.

Print size and file format: PNG or SVG?

Print a QR code at about one tenth of the scanning distance, never smaller than 2 × 2 cm, and use SVG for print and PNG for screens.

These numbers are guidelines, not a standard. A dense code with a long link needs more room, so add a few centimeters or shorten the content. SVG stays sharp at any size; if a print shop asks for a raster QR code for print, send the 4096 px PNG.