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Free QR Code Generator

Make a QR code for a link, Wi-Fi, a contact or a payment, add your logo and colours, and download it once our scan check has read it back.

16 types · Logo, colours and frames · SVG, PNG and PDF · Made in your browser, never uploaded

Made in this browser and never uploaded · static codes that never expire

Website address

Static: what you type is in the squares, so it never expires
Try
In the codehttps://dnsrobot.net/example28 bytes

Your code

QR code: Link

Version 3 · 29 × 29 · EC Q

1,036 × 1,036 px · 8.8 cm wide at 300 dpi

Scan check

Reading…

Checking…

Reading the code back the way a strict phone reader would.

Exact fileas downloadedreading
Small print≈ 2.5 cm, slight blurreading
Tiny print2 px a modulereading
Fadedglare, dim lightreading
Read backReading…
Logo
No logo
Contrast
85 % · A#0e7490 on #ffffff
Quiet zone
4 modules
Smallest print (estimate)
3.7 cm at 25 cm · 15 cm at 1 m37 modules wide with the margin, 1 module per 250th of the distance

Design

Every template reads back in the scan check, on screen and on a small faded print.

How do I create a QR code for free?

Pick what the code holds (a link, Wi-Fi, a contact, a payment), fill in the fields, and the code appears as you type. Choose a template or set your own colours, dots, corner squares, frame and logo, then download it as SVG, PNG, JPEG, WebP or PDF.

It's a free QR code generator with no sign-up, no watermark and no limit, the logo and the vector downloads included. Before the download button lights up, our scan check reads your code back the way a strict phone camera would, so a custom QR code that won't scan never reaches the printer.

Free QR code generator: a link's QR code styled in navy, read back by the scan check, ready to download as SVG or PNGFree QR code generator: a link's QR code styled in navy, read back by the scan check, ready to download as SVG or PNGWhat the code holdsTen everyday types and six payment schemes, each with its own form and colour.DesignTemplates, colours, dot and corner shapes, a frame with a call to action, and a logo kept within its budget.Scan checkZXing reads your code back: the exact file, a small print and a faded copy, with one-click fixes.DownloadSVG, PNG, JPEG, WebP or PDF, sized for print and made in this tab.
The generator with a link code: what the code holds, the design tabs, the code on its navy column with the scan check, and the downloads. Select a number to see what each part does.

Is it safe to make a QR code online?

Here, yes: the code is made in your browser tab, and nothing you type (a link, a Wi-Fi password, a UPI ID) is sent to us or anyone else. The encoder, the drawing and the scan check all run on your device, and closing the tab clears everything.

Many generators work on their own server instead. QR Code Monkey draws the code there and keeps the image files cached for 24 hours (its FAQ); goQR's server logs your IP address, browser and referring page, though not the code's contents (goQR). That's fine for a public link, less so for a Wi-Fi password.

Where your data goes: every step runs in this tab

This browser tab

  1. TypeA link, Wi-Fi or a payment
  2. Encodelean-qr, 3.6 KB
  3. StyleSVG drawn from the grid
  4. Read backZXing, in a background worker
  5. DownloadSVG · PNG · JPEG · WebP · PDF
dnsrobot.net
  • Sends the ZXing decoder once, for the scan check
  • Receives nothing you type: 0 bytes

Do QR codes expire? Static vs dynamic

Not a static QR code: the link or text is written into its squares, so no account, server or subscription can switch it off. Every code this page makes is static and never expires. It stops working only if the page it points to goes away or the print wears out.

A dynamic code holds the vendor's own short link instead, and the vendor's server forwards each scan to your page. That's how it can be edited after printing, and how it can be stopped: at qr-code-generator.com, dynamic codes made in the 14-day free trial point to a service page once the trial ends, until you pay (its help centre).

Two codes printed on day 0

Static: your link is in the squares

Still opens your page

Dynamic: the squares hold the vendor's link

The free trial ends on day 14every scan after it lands on the vendor's page

The codeThe vendor's serverYour page

QR code deactivatedThe vendor's page, not yours

How big can a logo be in a QR code?

About 10 % of the code's area, with error correction at level H. The often-quoted 30 % is the share of codewords level H can repair, not of the picture (Denso Wave): a logo breaks every codeword it touches, each one costs two codewords of repair, and the worst block decides.

We measured it: on a perfect image, the largest centred logo that still decoded at level H covered 14–27 % of the area from version 3 up, and only 2–8 % at versions 1 and 2. The limit doesn't even rise steadily (version 15 held less at H than at Q), and prints and cameras lose part of it. So this QR code generator with logo support keeps a 10 % default, never goes past 15 %, and reads every code back before you download it.

Largest centred logo that still decoded, versions 3–40, on a perfect image (versions 1–2: 2–8 %)
  • L4.3%–8.3%No logo
  • M7.6%–14.2%Not offered with a logo
  • Q10.0%–23.1%
  • H14.4%–27.2%

Share of the code's area

Measured limitCodewords the level repairsOur defaultHard cap, after the scan check

One code (version 5, level H), three logo sizes, read back by ZXing

  • 8.8 % of the area8.8 % of the areaReads in every copy, 45 % of its error correction to spare
  • 16.4 % of the area16.4 % of the areaReads, but only 9 % of its error correction is left
  • 21.1 % of the area21.1 % of the areaWon't scan

Which parts of a QR code can I customize?

The data modules can take any shape and colour, as long as round or shrunk dots keep at least 80 % of a module and the dark colour stays clearly darker than the light one; in our tests, dots at 60 % failed under a mild blur even with no logo. The three corner squares (finder patterns) can change shape, but a camera finds the code by their 1 : 1 : 3 : 1 : 1 rings, so each ring and centre stays solid.

The timing lines, the format information beside the finders and the quiet zone round the code are left alone, and a logo never covers them: they hold no data, so error correction can't repair them, and if the format information can't be read, nothing else in the code can be (ISO/IEC 18004). The small alignment square near the bottom-right corner stays clear too.

A real version 5 code, 37 × 37 modules
  • Free to styleData and error correction: any shape or colour, dots at least 80 % of a module
  • Shape onlyFinder patterns: keep the 1 : 1 : 3 : 1 : 1 rings
  • Leave aloneTiming, format information, the alignment pattern and the 4-module quiet zone
  • Logo zoneCentred, snapped to whole modules: 8.8 % of the area

Why won't my QR code scan?

Usually the colours. A camera turns the picture into black and white at a threshold halfway between its lightest and darkest parts, so pale dots, a gradient that fades into the background, light corner squares or a light code on a dark ground fall on the wrong side of it. Print grading rates the contrast from A (70 % and more) down to F (under 20 %) (Cognex on ISO/IEC 15415).

Light-on-dark codes are allowed by the standard, but many readers never try them: Tor Browser's and 1Password's dark-mode codes failed on some phones. The other usual causes are a logo that's too big and no blank margin round the code. These eight codes were read back by ZXing, the decoder our scan check uses, the same way the tool reads yours.

Eight real codes, read back the way the tool reads yours
  • Dark on lightDark on lightThe safe defaultReads in every copyExact file: readSmall print: readTiny print: readFaded: readContrast 85 % · grade A
  • Brand gradientBrand gradientBoth ends stay darkReads in every copyExact file: readSmall print: readTiny print: readFaded: readContrast 84 % · grade A
  • Yellow modulesYellow modulesFine on screen, lost when fadedReads, but a worn copy failsExact file: readSmall print: readTiny print: readFaded: not readContrast 36 % · grade D
  • Fading gradientFading gradientThe pale end drops out when fadedReads, but a worn copy failsExact file: readSmall print: readTiny print: readFaded: not readContrast 29 % · grade D
  • Light corner squaresLight corner squaresThe corners a camera looks for first are paleReads, but a worn copy failsExact file: readSmall print: not readTiny print: not readFaded: not readContrast 29 % · grade D
  • Light on darkLight on darkStrict readers see nothingOnly if the reader tries inverted codesExact file: not readSmall print: not readTiny print: not readFaded: not readLight on dark
  • No marginNo marginThe frame touches the codeWon't scanExact file: not readSmall print: not readTiny print: not readFaded: not readContrast 85 % · grade A
  • Logo too bigLogo too big21 % of the areaWon't scanExact file: not readSmall print: not readTiny print: not readFaded: not readContrast 84 % · grade A

Each code was read four ways, as the scan check reads yours: the exact file, a small blurred print (3 px a module), a tiny print (2 px a module) and a faded copy (glare, dim light).

What size should a QR code be?

Make each module, one square of the grid, at least 1/250 of the distance it's scanned from: a short link read from 25 cm needs a code about 3.3 cm wide with its margin, and from 1 m about 13 cm. The 1/250 is our own estimate, worked out from QR vendors' rule of thumb that a phone reads a typical 25-module code from about ten times its width (QRStuff). No standard sets a distance, so in poor light or at an angle go a size up.

A denser code needs more room at the same distance: a long link, a logo at level H or a full contact card adds modules. Under the scan check, the tool shows the smallest print for your own code. Print a test copy and scan it with an older phone before a large run.

Smallest width with the 4-module margin, by scan distance (our estimate from vendors' rule of thumb, not a standard)
Scan distanceShort linkShort linkversion 2 · 25 × 25Link + logoLink + logoversion 5 · 37 × 37Contact cardContact cardversion 10 · 57 × 57
25 cm3.3 cm4.5 cm6.5 cm
50 cm6.6 cm9 cm13 cm
1 m13 cm18 cm26 cm
2 m26 cm36 cm52 cm
3 m40 cm54 cm78 cm

1 module ≥ distance ÷ 250 · in poor light ÷ 200

For QR codes on retail packs, GS1 sets 0.396 mm a module as the minimum and 0.495 mm as the target (GS1).

How do I make a Wi-Fi QR code?

Choose Wi-Fi, type the network name and password exactly as your router shows them, and pick the security. The code holds a short text such as WIFI:T:WPA;S:Cafe Example;P:espresso-2026;;, which the iPhone Camera, Android's Wi-Fi settings and many Android camera apps offer to join, so guests never type the password (ZXing's format).

We always write the security, as T:WPA for WPA2 and WPA3 alike (the value in the Wi-Fi Alliance's WPA3 specification), add R:1 for a WPA3-only network, and put a backslash before ; , : \ and " in a name or password. Anyone who scans the code can read the password, so print it for a guest network.

Open the WiFi QR code generator
What a Wi-Fi code holds, part by part

WIFI:T:WPA;S:Cafe\;Guest;H:true;P:espresso-2026;;

WIFI:
The kind of code
T:WPA
Security: WPA for WPA2 and WPA3, WEP, or nopass for an open network
S:Cafe\;Guest
The network name, here with its ; escaped
H:true
A hidden network (written only when it is)
P:espresso-2026
The password, in plain text
;
The end of the record

A WPA3-only network gets R:1, so WPA3 devices never fall back to WPA2.

  • iPhone CameraOffers to join, iOS 11 and later
  • Android SettingsThe QR icon in the Wi-Fi list, Android 10 and later
  • Android camera appsDepends on the phone maker

Can a QR code take payments in India?

Yes, through UPI: choose Payments › UPI and type your UPI ID. The code holds a upi://pay link that every UPI app must open, so PhonePe, Google Pay, Paytm, BHIM and the rest all pay the same code (NPCI's UPI Linking Specification v1.6 (copy hosted by labnol.org)). The part after the @ shows which app and bank issued the ID: @ybl is PhonePe on YES Bank.

Leave the amount empty and the payer types it; fill it in and it's fixed, written as am=250.00. Your UPI PIN is only ever entered to pay, never to receive money (NPCI). For a shop's table stand, a fixed amount and UPI's limits, use the UPI QR code generator.

Open the UPI QR code generator
A UPI payment link, part by part

upi://pay?pa=shop.example@ybl&pn=Example%20Store&am=250.00&cu=INR&tn=Order%2042

upi://pay?
Every UPI app opens it
pa=shop.example@ybl
The UPI ID that gets paid@yblIssued byPhonePeYES Bank
pn=Example%20Store
The name the app shows
am=250.00
A fixed amount, two decimals; leave it out and the payer types it
cu=INR
Rupees, the only currency UPI takes
tn=Order%2042
A note

One code, every UPI app

  • PhonePe
  • Google Pay
  • Paytm
  • BHIM
  • Amazon Pay
  • CRED
  • MobiKwik
  • WhatsApp

Which payment QR codes can I make?

Six kinds: UPI in India, Pix in Brazil, SEPA bank transfers in the euro area (the EPC QR code, often called GiroCode in Germany), PromptPay in Thailand, crypto addresses and PayPal.me links. Each follows its scheme's published format, and our QR code scanner reads every one of them back, field by field.

Some payment codes can't come from any free generator: Indonesia's QRIS needs a merchant ID from a licensed provider (Bank Indonesia), Türkiye's TR Karekod is made only by licensed payment providers, and Russia's Faster Payments (SBP) codes come from banks.

Payment QR codes by country
WhereSchemeWhat's in the codeWho can make oneHere
IndiaUPIA upi://pay linkAnyone with a UPI IDYes
BrazilPixEMV fields with a CRC-16Anyone with a Pix keyYes
Euro areaSEPA transfer (EPC QR)BCD lines, error correction MAnyone with an IBANYes
ThailandPromptPayEMV tag 29Anyone with a phone number or IDYes
WorldwideCryptoA bitcoin: or ethereum: linkAny walletYes
WorldwidePayPal.meA paypal.me linkAny PayPal accountYes
SwitzerlandSwiss QR-billSPC lines and the Swiss crossA CH or LI IBANLater
RussiaGOST R 56042ST00012 fieldsBank-transfer receiptsLater
SingaporePayNowField spec not published—No
VietnamVietQRField spec not public—No
IndonesiaQRISA merchant ID (NMID)Licensed providers onlyNo
TürkiyeTR KarekodThe issuing provider's codeLicensed providers onlyNo
RussiaSBPA bank's linkBanks onlyNo

QR Code is a registered trademark of DENSO WAVE INCORPORATED.

QR code generator FAQ

Is this QR code maker really free?

Yes. Every type, the logo library, your own logo upload and the SVG and PDF downloads are free, with no sign-up, no watermark and no limit on how many codes you make. QR codes are free to use commercially too: Denso Wave, which invented them, charges nothing for codes that follow the standard. The page is paid for by the ads below the tool.

Do QR codes made here expire?

No. They're static: the link or text is in the squares themselves, so no server, account or subscription stands between the code and your page, and nothing can switch it off. A static code stops working only if the page it points to goes away or the print is damaged. The codes that expire are dynamic ones, which hold a vendor's short link.

Can I change a QR code after printing it?

Not a static one: what it holds is the pattern itself, so a new link means a new code. If you expect the destination to change, point the code at a page you control, such as your own short link or a landing page, and change that page instead. The printed code then keeps working, with no QR vendor's subscription involved.

How do I make a QR code with a logo?

Open the Logo tab and pick a mark from the library (social, messaging, payment and review brands, plus Wi-Fi, menu and other icons) or upload your own. The generator switches error correction to level H, keeps the logo near 10 % of the code's area on a plate snapped to the grid, and reads the result back. If the logo is too big, it offers to shrink it.

Should I download SVG or PNG for printing?

SVG or PDF. Both are vectors, sharp at any size, and keep gradients, the logo and the frame, so a print shop can scale them up to a poster. PNG suits screens, documents and email; for print, pick a size the tool marks for your width at 300 dpi. JPEG and WebP are smaller but lossy, and JPEG can't be transparent.

Can I make a QR code with a transparent background?

Yes: set the background to transparent and download SVG or PNG (JPEG has no transparency). The code then shows whatever it's printed on, so the scan check reads it on white and on a backdrop colour you pick. Keep that surface clearly lighter than the modules, and keep the 4-module margin round the code free of any pattern.

Why doesn't my coloured QR code scan?

Usually the contrast. Pale dots, a gradient that fades into the background, light corner squares or a light code on a dark background fall on the wrong side of the camera's threshold. Keep dark modules on a light ground with at least 40 % contrast; the scan check shows yours as a grade and offers a one-click fix that darkens the colours and keeps their hue.

How do I make a vCard QR code for a business card?

Choose Contact, fill in the name, phone, email, company and address, and download the code. It's written as a vCard 3.0, which iPhone and Android cameras offer to save as a contact; MECARD is a shorter format that makes a smaller code. A full card makes a dense code, so check the smallest print the tool shows before you size it on the card.

How do I make a WhatsApp QR code?

Choose WhatsApp, type the number with its country code and, if you like, a first message. The code holds a wa.me link, WhatsApp's own click-to-chat link, which opens a chat with that number with your message ready in the text field. WhatsApp wants the number in international format without leading zeros, brackets or dashes, so spaces and the plus sign are removed for you and a number that starts with 0 gets a warning.

Do these QR codes track scans?

No. A static code has no server in between: the phone reads your link straight from the squares, so nobody, us included, learns when or where it's scanned. If you want scan counts, measure them on the page the code opens, for example with a campaign tag such as utm_source=qr in the link, which your own analytics then reads.

How small can I print a QR code?

By our estimate, using QR vendors' rule that a phone reads a code from about ten times its width, each module should be at least 1/250 of the scanning distance. At arm's length, about 25 cm, a short link needs a code about 3.3 cm wide, margin included; a link with a logo about 4.5 cm, and a contact card about 6.5 cm. The tool shows the size for your own code, and a test print settles it.

Is it safe to put my Wi-Fi password in a QR code generator?

Here, the code is made in your browser and the password is never sent anywhere or written into the page's address. The printed code is another matter: anyone who scans it can read the password in plain text. So print Wi-Fi codes for a guest network, and make a new code whenever you change its password, as the old one stops working.

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