QR Code Generator

About the QR Code Generator

A QR code is a two-dimensional barcode that stores a short piece of text as a grid of dark and light squares called modules. When a phone camera reads the grid, it decodes the text and then decides what to do with it: open a web address, join a Wi-Fi network, display a plain message, or offer to save a contact. This generator takes whatever you type into the box, encodes it in your browser, and gives you back a PNG image you can print, drop into a slide, or send in a message. It does not check or shorten your input, so the finished code contains exactly the characters you entered and nothing else.

The grid grows with your data. The smallest QR code, version 1, is 21 modules on each side, and every step up in version adds four modules per side, all the way to version 40 at 177 by 177. A 20-character web address fits in a 25-module code, while a 500-character paragraph needs 85 modules. This tool always applies error-correction level M, which adds enough redundancy that a code can usually still be read when roughly 15 percent of it is smudged, creased, or covered. The downloaded image is 320 pixels square with a two-module white border, drawn in deep navy on white for strong contrast.

The tool suits anyone who needs to bridge printed material and a screen: shop owners labeling tables, teachers adding a link to a worksheet, organizers putting a registration page on a flyer, or families sharing a guest network. Because the code is static, it carries the data itself rather than pointing at a tracking service, so it never expires and nothing is logged. The flip side is that you cannot edit a static code after it is printed. If the destination might change, plan for a link you control that can be redirected later.

When to Use It

How to Use It, Step by Step

1. Decide what the code should do before you open the tool. A web address should start with https:// so phones recognize it as a link, a Wi-Fi code needs the WIFI: format, and plain text can simply be a sentence.
2. Click into the box labeled 'Text or URL to encode' and type or paste your content. Copy long addresses straight from your browser's address bar rather than retyping them, which avoids transcription errors.
3. Read the text once more for typos, stray spaces, and line breaks. The generator does not validate anything, so it will happily encode a misspelled address or a trailing space.
4. Press the 'Generate QR Code' button. The image does not update as you type, and pressing Enter inside the box only adds a new line, so the button is the step that actually builds the code.
5. If you see the message 'Please enter some text or a URL to encode', the box was empty or contained only spaces. Add content and press the button again.
6. Look at the code that appears in the result panel. A short address gives a loose, chunky pattern, while long text gives a fine pattern. Scan the on-screen code with your own phone to confirm it opens what you expect.
7. Click 'Download PNG' to save the image. It downloads as a 320 by 320 pixel file named everyfix-qr-code.png, so rename it if you will be saving several codes in one folder.
8. To make another code, edit the text and press 'Generate QR Code' again, or press 'Reset' to clear the box, the preview, and any error message in one click.

Understanding Your Results

The output is a single image, so the main thing to judge is how it looks and how it scans. A tidy, low-density pattern means your data was short and the code will scan quickly even at small sizes or from a distance. A dense, fine-grained pattern means you encoded a lot of text. Dense codes are perfectly valid, but each module is physically smaller at a given print size, so they need more space, better printing, and a steadier hand when scanned.

As a rough guide for this tool, a 20-character address comes out as a 25 by 25 module grid, an 87-character address with tracking parameters as 41 by 41, and a 500-character paragraph as 85 by 85. Since the PNG is a fixed 320 pixels wide, those codes use about 11, 7, and 3.6 pixels per module respectively. If you plan to print large, avoid smoothing when you enlarge the image, because blurred module edges are the most common cause of slow scanning.

Always sanity-check the code before it leaves your hands. Scan it on at least two different phones, ideally one iPhone and one Android, in normal room lighting and at the distance people will actually use. If the scan is slow or fails, shorten the text, print larger, or add white space around the code. The standard asks for a four-module border and this image includes two, so extra white margin on your layout helps.

More Worked Examples

Tips for Better Results

• Prefer the shortest destination that still works. Every character you remove can reduce the grid size, and a smaller grid means larger modules at the same print size, which is the single biggest factor in reliable scanning.
• Always include the https:// prefix on web addresses. Without it, some scanners treat the content as plain text and show it for copying instead of offering to open it, which confuses people who expect a link.
• If you write a Wi-Fi string by hand, remember that the characters semicolon, comma, colon, quote, and backslash have special meaning in that format and must be escaped with a backslash when they appear inside a name or password.
• Keep dark modules on a light background. Inverted codes, with light squares on a dark field, are not read by every scanner app, and low-contrast color combinations make slow or failed scans far more likely.
• Print a proof first and scan it from the real viewing distance. A common rule of thumb is that a code can be scanned from roughly ten times its width, so a 2-inch code works at about 20 inches and a poster needs a much larger one.
• Leave a generous blank margin around the code in your layout and avoid placing it on glossy, curved, or wrinkled surfaces. Reflections and distortion damage modules in ways that error correction cannot always repair.

Common Mistakes to Avoid

• Editing the text after generating and forgetting to press the button again. The preview and download stay as the old code until you click 'Generate QR Code', so confirm the image changed before saving.
• Leaving out https:// or including a stray space or line break. The code will encode these literally, so scan your own result and check the destination, not just the picture.
• Printing a dense code too small. A code built from a 500-character message will not scan at stamp size, so either shorten the text or increase the printed width.
• Using a destination that will change. A static code cannot be edited after printing, so point it at a stable address you control, such as a short link on your own domain that you can redirect later.
• Putting sensitive information in the code. Anyone with a camera can read it, so never encode a private password or personal data in a code displayed in public view.

Assumptions and Limits

• The generator creates a static code. It stores your text directly, adds no tracking or redirect, and has no expiry, but that also means there are no scan statistics and no way to edit the code later.
• Error correction is fixed at level M, and the color scheme is fixed as navy on white at 320 pixels with a two-module border. There are no controls for logo overlays, other correction levels, or custom colors, so those features are outside what this page does.
• Capacity is limited. Plain text and typical web addresses are stored as bytes, and the largest code this tool built in testing held 2,331 such characters. Characters outside basic ASCII, such as accented letters, use more than one byte each, so the practical limit drops for text in many languages.
• The tool does not verify that a link is safe or that it exists. A code is only as trustworthy as the address inside it, so treat unfamiliar printed codes the way you would treat unfamiliar links.

Key Terms

Module

One of the small dark or light squares that make up the QR grid. Scanning reliability depends largely on how large each module is when printed or displayed.

Version

The size class of a QR code, from 1 (21 by 21 modules) to 40 (177 by 177). The encoder picks the smallest version that fits your data and its error-correction overhead.

Error correction

Extra data built into the code, using a Reed-Solomon scheme, that lets a scanner reconstruct information from damaged or hidden areas. Level M can recover roughly 15 percent.

Quiet zone

The blank border around a QR code that helps a scanner find where the code begins. The specification calls for four modules of clear space.

Static QR code

A code that contains the actual data rather than a pointer to a service. It cannot be changed after creation and does not depend on any company staying in business.

Byte mode

The encoding method used for general text and most web addresses, storing each character as one or more bytes. It uses more space per character than numbers-only content.