Can QRKIT generate a Bitcoin payment request with an amount built in?

No. QRKIT has no crypto payment builder — there is no coin picker, no address field and no amount field anywhere in the tool, and nothing in it constructs a payment request for you. What it does have is a Text QR code that encodes whatever string you type, character for character. If you write a Bitcoin URI yourself — the bitcoin:address?amount=… form defined by BIP-21 — and paste it in, the code carries exactly that string. We are not building the request; you are, and we are encoding it. That also means nothing on our side checks it.

Will a QR code of just my wallet address prefill the amount in someone's wallet app?

No, and it cannot — there is no amount in the code to prefill with. A wallet address is one string, and a QR code of it contains that string and nothing else: no amount, no label, no note, no currency. Whatever the scanning app does next, it has nothing to fill an amount field from. The consequence is real: the person paying you types the amount themselves, which is where wrong-amount mistakes come from. If prefilling matters, the amount has to be inside the string you encode — that is what the BIP-21 ?amount= parameter is for. Write the URI yourself and encode that instead of the bare address.

What is a BIP-21 bitcoin: URI?

BIP-21 is the published Bitcoin Improvement Proposal defining a URI scheme for payment requests: bitcoin: ?amount=…&label=…&message=…. The spec requires the amount in decimal BTC with a period as the decimal separator (amount=0.005, never a comma). It also defines a req- prefix for mandatory parameters: a wallet that does not implement a req- parameter it finds must treat the entire URI as invalid. Ethereum has an equivalent, ERC-681, which reached Final status and defines ethereum: [@chain_id][/function]?value=…. Both are conventions individual wallet apps choose to implement or not, and support varies by app and version — encode your URI, then scan the result with the wallet the people paying you actually use before you print anything.

Does QRKIT check that my wallet address is valid?

No. The Text field's only check is that it is not empty. There is no checksum verification, no address-format check and no coin detection anywhere in the tool — a mistyped address is encoded exactly as mistyped, and the resulting QR code will look completely normal. This is the failure mode to take seriously, because crypto transfers do not bounce back the way a wrong bank transfer sometimes does. Copy and paste the address straight from your wallet rather than typing it, then scan the finished code and compare the decoded string against your wallet character by character — especially the first and last six.

Is it safe to pay by scanning a crypto QR code?

Scanning is safe. Sending is the part that needs care, because a QR code is opaque by design: you cannot read an address by looking at the pattern, so a swapped code is invisible until after the money is gone. Someone printing a sticker with their own address and placing it over yours is a known QR attack pattern, and crypto is the version of it with no chargeback. Two habits cover most of it: before you send, check the decoded address in your wallet against the one you were given through a different channel, and check the whole string rather than the first few characters; before you display a code of your own, put it somewhere tamper-evident and re-scan it periodically. Our guide to QR code scams covers the sticker-overlay pattern in detail.

Should a crypto QR code be static or dynamic?

If the code is meant to hand a wallet an address or a URI, it has to be static. A static code holds your data in the pattern itself; a dynamic code holds a short link that redirects. A scanner handed a link gets a link, not a payment request — so the redirect layer that makes dynamic codes useful is exactly what breaks a wallet handoff. Dynamic is the right choice for the other shape: a URL QR code pointing at a page you control that lists how to pay you, which you can repoint after printing and see scan counts for. Check the free-plan limits first — one dynamic code, and 100 scans a month across the whole account, after which a free dynamic code stops redirecting until the monthly reset.

Can I make a QR code for Ethereum, USDT, Solana or another coin?

Yes, in the same sense as Bitcoin: the Text QR code encodes any string, so any address or URI you can write down, you can encode. What you will not find is per-coin support — there is no network picker, no token selector and nothing that knows one chain from another, because the tool does not parse what you type at all. That cuts both ways. It means every chain works identically, and it means nothing warns you if you paste an address for the wrong network, which is one of the more expensive mistakes in crypto. Confirm the chain in your own wallet before you encode, and test-scan the result.

Can I track how many people scan my crypto QR code?

Only for the URL shape, and never the payment itself. QRKIT counts scans by sitting in the redirect path of a dynamic code, so it can count a URL QR code being opened. A static code that carries an address has nothing of ours in the path, so there is nothing to count and no upgrade changes that. And QRKIT never sees a transaction — we are not connected to any chain, wallet or exchange. A scan count tells you a code was opened; whether anyone paid is something only your wallet can tell you.

Do I need an account to make a crypto QR code?

Not to build one. The generator on this page runs without signing in — type your address or URI, style the code, watch the preview update. Getting the image file is where a free account comes in: a signed-out visitor is not handed a download from the QR tool. Free costs nothing and needs no card. Once you are in, downloads are watermark-free on every plan including free. A free account exports PNG up to 1024 px; the SVG and PDF are the paid part — any paid plan unlocks them, so budget for the SVG if you are printing. Paid plans also add the larger PNG sizes and more dynamic codes.

What size should I print a crypto QR code, and does a long address make it worse?

Yes, length matters here more than on most codes. Every extra character adds modules, and more modules in the same printed square means smaller modules and a fussier scan. A bare address is already long; a BIP-21 URI with an amount, a label and a message is longer still. Print crypto codes bigger than you would print a short link, and if the pattern looks visibly dense, drop the optional label and message and keep the address and amount. Keep the quiet zone — the blank margin around the code — clear, and do not sacrifice contrast for a colour scheme. Export the SVG for anything printed, and test-scan the printed proof rather than the screen.

Get Started Free

Crypto QR Code Generator: Turn a Bitcoin
or Wallet Address Into a QR Code

Free, and honest about the part other generators skip: a QR code of a bare wallet address does not prefill an amount in anyone's wallet app, because there is no amount in it to prefill. Here is what does, and what to check before you print.

Free generatorAny chain, any addressPNG free · SVG/PDF paidSwap-scam risks explained

Free — unlimited static codesBitcoin, Ethereum, any chainPNG free · SVG/PDF paid, no watermarkSwapped-address risks explained

The generator opens on Text, which is what a wallet address is. Paste your address — or a Bitcoin URI you wrote yourself — and it is encoded exactly as entered. Nothing here validates an address, so copy it from your wallet rather than typing it.

STEP 1Enter the URL

STEP 2Customize Design

This is a sample until you generate yours

Classic

Bubble

Smooth

Sharp

Elegant

Dots

Pattern

Classic

Bubble

Smooth

Sharp

Elegant

Dots

Eyes

Classic

Circle

Bubble

Smooth

Elegant

Dotted

STEP 3Download your QR code

This is a sample until you generate yours

Can't be edited after download

Runs in your browser. Nothing to install.

Crypto QR codes, explained

What Is a Crypto QR Code?

A crypto QR code is an ordinary QR code whose payload happens to be crypto data — almost always either a wallet address on its own, or a payment-request URI that wraps that address together with an amount.

There is no separate “crypto” barcode standard. The symbol is the same ISO/IEC 18004 QR code used for a link or a contact card; the only thing that makes it a crypto code is the string inside. And that string is where the whole subject gets decided, because the two options behave completely differently once somebody scans them.

A bare address — something like bc1q… or 0x… — is just a string of characters. Encode it and the code contains that string and nothing else. No amount. No label. No currency. A payment-request URI is a structured string that a wallet can recognise as a request: BIP-21 defines bitcoin:<address>?amount=… for Bitcoin, and ERC-681 defines an ethereum: equivalent. Same QR code, same wallet, entirely different scan.

It is one of many QR code types, and one of the few where getting the payload wrong costs real money rather than a broken link.

Read this first

What QRKIT Can and Cannot Do With Crypto

QRKIT is a QR code generator, not a wallet and not a payment processor. It has no crypto builder — no coin picker, no address field, no amount field. It encodes the text you give it. Knowing exactly where that line falls is worth two minutes before you print anything.

What you can do here

Encode a wallet address as a Text QR code — any coin, any chain, because we do not parse it
Encode a payment-request URI you wrote yourself, character for character, amount included
Point a URL QR code at an exchange or wallet payment link, or at a page listing how to pay you
Style it — colours, logo, patterns, frames — and preview it without signing in
Download a PNG once you are signed in — SVG and PDF come with any paid plan, and no plan adds a watermark

What QRKIT will not do

Build a BIP-21 or ERC-681 payment request for you — there are no address or amount fields to build one from
Prefill an amount from a bare address — there is no amount in the string, so there is nothing to prefill
Validate your address, verify a checksum, or notice that you pasted an address for the wrong network
Connect to any chain, wallet or exchange, or see a single transaction
Tell you whether a specific wallet app honours a URI you encoded — test that yourself

The consequence, stated plainly

If you encode a bare wallet address, the person scanning it has to type the amount themselves. That is not a QRKIT limitation — it is arithmetic. The amount is not in the code, so no app on either end can invent it. Every generator that markets a “Bitcoin payment QR code” and then hands you an address-only symbol has the same behaviour; most of them simply do not mention it.

Whether that matters depends on the job. For a donation code, a tip sign or a “send to this wallet” note on packaging, an address is genuinely all you need — the payer chooses the amount anyway. For an invoice, a fixed price or a checkout, it matters a lot: an amount typed by hand is an amount that can be typed wrong. That is the case for writing the URI yourself, which is the next section.

Three honest shapes

Three Ways to Make a Crypto QR Code — and When Each One Is Right

There is no fourth option hiding behind a paywall. These are the three, and the difference between them is entirely what string ends up in the pattern.

Text QR code

1. The bare wallet address

Paste the address into the Text field. Static, free, unlimited, and the simplest thing that works. A scan surfaces the address; the payer picks the amount. Right for donations, tips and “send here” notes — wrong for a fixed price.

Text QR code

2. A URI you write yourself

Write the BIP-21 string by hand — bitcoin:bc1q…?amount=0.005&label=Order%201234 — and paste that into the same Text field. We encode it verbatim. This is the only way to get an amount into the code here, and it is on you to get the syntax right.

URL QR code

3. A link to a payment page

Point a URL code at a checkout your exchange or payment provider generates, or at a page listing your addresses. The only shape you can repoint after printing or count scans on — but it hands the phone a link, not a wallet handoff, so it needs internet and a browser.

On writing the URI yourself. BIP-21 is a published Bitcoin Improvement Proposal, not a QRKIT invention, and it is specific: the amount must be decimal BTC with a period as the decimal separator, so amount=0.005 and never a comma. Parameters prefixed req- are mandatory: per the spec, a wallet that meets one it does not implement must reject the whole URI. Ethereum's equivalent is ERC-681, which reached Final status. Support for either is a per-wallet, per-version decision that we are in no position to promise on any wallet's behalf — so encode it, then scan it with the wallet the people paying you actually use.

Side by side

Bare Address vs Payment URI vs Payment Link

All three are QR codes QRKIT will make for you. They are not interchangeable.

Swipe to see all three columns →

	Bare address (Text)	BIP-21 URI you wrote (Text)	Payment link (URL)
What is in the code	Your address, nothing else	Address plus amount, label, message	A web link
Prefills an amount	No — there is no amount in it	That is what the amount parameter is for	Depends on the page you link to
Who sets the amount	The payer, by hand	You, when you write the string	Whatever your provider's page does
Needs internet to scan	No	No	Yes — it opens a browser
Static or dynamic	Static	Static	Dynamic (or static, if you never need to change it)
Editable after printing	No	No	Yes, if dynamic
Scan counts	No — nothing of ours is in the path	No — same reason	Yes, if dynamic
Free plan	Unlimited	Unlimited	One dynamic code, 100 scans a month
Syntax risk	Low — one string, copied	On you — we do not check the URI	Low — but the page is yours to keep working

Background on the two modes, independent of crypto: static QR codes and dynamic QR codes. For the plain-text mechanics, see text QR codes; for the link shape, URL to QR code.

The risk nobody prints on the sign

A Swapped Address Is Invisible Until the Money Is Gone

A QR code is opaque on purpose. You cannot read an address by looking at the pattern, which is convenient right up until someone replaces the pattern. Sticking a printed code over a legitimate one is a well-documented QR attack pattern, and the crypto version of it has a property that makes it worse: there is no chargeback, no dispute window and nobody to call.

Overlaid and swapped codes

A sticker with the attacker’s address, placed over yours on a sign, a card or packaging. Nothing about the printed symbol looks wrong. Put your codes where tampering is visible, and re-scan them yourself on a schedule.

One character, unrecoverable

Nothing in this tool checks an address — the only validation is that the field is not empty. A typo encodes cleanly and scans cleanly. Copy from your wallet instead of typing, then scan the finished code and compare the whole string, not just the first six characters.

The wrong network

An address pasted for a chain the sender is not using, or a token sent over the wrong network, is the other expensive mistake. We cannot warn you: the tool does not know one chain from another because it never parses what you type. Confirm the network in your wallet first.

Before you send crypto to any code you did not create, check the decoded address in your wallet against one you obtained through a different channel — and check the entire string. Our guide to QR code scams walks through the sticker-overlay pattern, fake payment pages and the rest of the family, with what each one looks like in the wild.

How it works

How to Make a Bitcoin or Crypto Wallet QR Code

The generator at the top of this page already opens on Text. Four steps, and the fourth is the one people skip.

Step 1

Copy, don’t type

Use your wallet’s copy button. Nothing in the generator checks an address, so a single wrong character becomes a normal-looking QR code that sends funds somewhere unrecoverable.

Step 2

Address, or a URI

Paste the address alone if the payer chooses the amount. If you need an amount attached, write the BIP-21 string yourself — bitcoin:address?amount=0.005 — and paste that instead.

Step 3

Keep it static, keep it readable

The data must live in the pattern, so keep it static — a redirect link is not a wallet handoff. Crypto strings are long and the pattern is dense: keep strong contrast, leave the quiet-zone margin clear, and go bigger than you would for a short link.

Step 4

Scan it back before you print

Scan the finished code with the wallet the people paying you actually use, and compare the decoded string against your wallet character by character. Then test the printed proof, not the screen.

Printing it on a card, a sign or packaging? Our guide to printing QR codes covers minimum sizes, quiet zones and file formats. Use the SVG for print — on this create flow SVG is the true vector output, while the PDF is a raster image placed on an A4 page. Both come with any paid plan; a free account downloads PNG.

What free actually includes

Is a Crypto QR Code Generator Free?

For the shape most people on this page need — a static code carrying an address or a URI — yes, with no cap worth mentioning. The limits live on the dynamic side, and they are worth reading before you print something you cannot reprint.

Static codes: unlimited, uncapped

Address codes and URI codes are static, and static codes are not counted or capped on any plan. There is no scan limit either, for the structural reason that there is nothing of ours between the scanner and your data — a static code cannot be switched off by us because it never touches us.

Dynamic codes: one, and 100 scans a month

Free includes one dynamic code, and 100 scans per month counted across the whole account. Past 100 a free dynamic code stops redirecting until the monthly reset — scans still arrive, they just do not resolve. On a code linked from a printed payment sign, that is the failure you do not want to discover late.

Downloads: free account, no watermark

Designing and previewing need no account. Getting the file does — a signed-out visitor is not handed a download from the QR tool. Once you are signed in, every plan including free exports without a watermark. A free account downloads PNG, up to 1024 px; SVG and PDF come with any paid plan.

When paid is worth it here

Only for the link shape. If you are running a payment page behind a dynamic code with real traffic, Starter starts at $6/month billed yearly and raises the dynamic-code allowance to 12. For a static address code, paying changes nothing about the code itself — the one thing it buys you is the SVG and PDF export, via a paid plan.

Full ladder on the pricing page. Prices shown there follow your region, so a eurozone visitor sees euros rather than the dollar figure above.

Where they are used

What People Actually Use Crypto QR Codes For

Note how many of these are cases where the payer picks the amount. That is not a coincidence — it is why an address-only code is the common shape.

Donation and tip codes

A creator, a project or a cause displaying a wallet address on a page, a card or a stream overlay. The payer decides the amount by definition, so a bare address is exactly right and the missing amount parameter costs nothing.

Receiving from someone in the room

Splitting a bill, settling a debt, paying a friend. The sender types the amount anyway, and both of you can compare the decoded address on the spot — which is the one situation where verification is easy.

Invoices and fixed prices

The case that genuinely needs an amount in the code. Write the BIP-21 URI with the amount and a label carrying your invoice number, encode that, and test it with the wallet your customer will use. A bare address here means every payment is a manual transcription.

A page that lists your addresses

One URL code pointing at a page with your addresses for each chain, so a single printed code covers all of them and you can change it later. This is the shape a dynamic code is for — and the shape the 100-scan free cap applies to.

If the first case is yours, QR codes for donations works through the same setup for the non-crypto rails. Taking other payment methods too? QR codes for payments covers the wider set, including the apps that do issue their own codes. Collecting in India runs into the same wall this page does, for a different reason: UPI QR codes explains why the code you are paid through is issued by your bank or UPI app rather than by a generator, and what is left to build around it.

Crypto QR Codes — Frequently Asked Questions

: No, and it is worth being exact about what that means. QRKIT has no crypto payment builder: there is no coin picker, no address field and no amount field anywhere in the tool. Nothing in it constructs a payment request for you.
What it does have is a Text QR code that encodes whatever string you type, character for character. If you write a Bitcoin URI yourself — the bitcoin:address?amount=… form defined by BIP-21 — and paste it in, the code carries exactly that string. We are not building the request; you are, and we are encoding it. That distinction matters because it also means nothing on our side checks it. See the next two answers.
: No, and it cannot — there is no amount in the code to prefill with. A wallet address is one string. A QR code of it contains that string and nothing else: no amount, no label, no note, no currency. Whatever the scanning app does next, it has nothing to fill an amount field from.
This is the single most common misunderstanding about crypto QR codes, and it has a real consequence: the person paying you has to type the amount themselves, which is exactly where wrong-amount mistakes come from. If prefilling matters to you, the amount has to be inside the string you encode — that is what the BIP-21 ?amount= parameter is for. Write the URI yourself and encode that instead of the bare address.
: BIP-21 is the published Bitcoin Improvement Proposal that defines a URI scheme for payment requests. The shape is bitcoin:<address>?amount=…&label=…&message=…. The spec requires the amount to be given in decimal BTC using a period as the decimal separator — amount=0.005, never a comma. It also defines a req- prefix for mandatory parameters: a wallet that does not implement a req- parameter it finds must treat the entire URI as invalid.
Ethereum has an equivalent, ERC-681, which reached Final status and defines ethereum:<address>[@chain_id][/function]?value=…. Both are conventions that individual wallet apps choose to implement or not. We will not tell you which wallets honour them — that varies by app and by version, and we have no way to verify it for you. Encode your URI, then scan the result with the wallet the people paying you actually use, before you print anything.
: No. The Text field's only check is that it is not empty. There is no checksum verification, no address-format check and no coin detection anywhere in the tool — a mistyped address is encoded exactly as mistyped, and the resulting QR code will look completely normal. This is the failure mode to take seriously, because crypto transfers do not bounce back the way a wrong bank transfer sometimes does. Copy and paste the address straight from your wallet rather than typing it, then scan the finished code and compare the decoded string against your wallet character by character — especially the first and last six.
: Scanning is safe. Sending is the part that needs care, because a QR code is opaque by design: you cannot read an address by looking at the pattern, so a swapped code is invisible until after the money is gone. Someone printing a sticker with their own address and placing it over yours is a known QR attack pattern, and crypto is the version of it with no chargeback.
Two habits cover most of it. Before you send, check the decoded address in your wallet against the one you were given through a different channel — and check the whole string, not just the first few characters. Before you display a code of your own, put it somewhere tamper-evident and re-scan it periodically. Our guide to QR code scams covers the sticker-overlay pattern and the rest of the family in detail.
: If the code is meant to hand a wallet an address or a URI, it has to be static. That is not a policy, it is what the two words mean: a static code holds your data in the pattern itself, while a dynamic code holds a short link that redirects. A scanner handed a link gets a link, not a payment request — so the redirect layer that makes dynamic codes useful is exactly what breaks a wallet handoff.
Dynamic is the right choice for the other shape: a URL QR code pointing at a page you control that lists how to pay you. Then you can change the destination after printing and see scan counts. Read the free-plan limits before you rely on it — one dynamic code, and 100 scans a month across the whole account, after which a free dynamic code stops redirecting until the monthly reset.
: Yes, in the same sense as Bitcoin: the Text QR code encodes any string, so any address or URI you can write down, you can encode. What you will not find is per-coin support — there is no network picker, no token selector and nothing that knows one chain from another, because the tool does not parse what you type at all. That cuts both ways. It means every chain works identically, and it means nothing warns you if you paste an address for the wrong network, which is one of the more expensive mistakes in crypto. Confirm the chain in your own wallet before you encode, and test-scan the result.
: Only for the URL shape, and never the payment itself. QRKIT counts scans by sitting in the redirect path of a dynamic code, so it can count a URL QR code being opened. A static code that carries an address has nothing of ours in the path — it is your data going straight to the scanner — so there is nothing to count, and no amount of upgrading changes that.
And to be explicit about the harder limit: QRKIT never sees a transaction. We are not connected to any chain, wallet or exchange. A scan count tells you a code was opened; whether anyone paid is something only your wallet can tell you.
: Not to build one. The generator on this page runs without signing in — type your address or URI, style the code, watch the preview update. Getting the image file is where a free account comes in: a signed-out visitor is not handed a download from the QR tool. Free costs nothing and needs no card.
Once you are in, downloads are watermark-free on every plan, including free. A free account exports PNG up to 1024 px; the SVG and PDF are the paid part — any paid plan unlocks them, so if you are printing, budget for the SVG. Paid plans also add the larger PNG sizes and more dynamic codes; the pricing page has the ladder.
: Yes, length matters here more than on most codes. Every extra character adds modules, and more modules in the same printed square means smaller modules and a fussier scan. A bare address is already long; a BIP-21 URI with an amount, a label and a message is longer still. So print crypto codes bigger than you would print a short link — and if the pattern looks visibly dense, drop the optional label and message and keep the address and amount.
Two practical notes. Keep the quiet zone — the blank margin around the code — clear, and do not push contrast for the sake of a colour scheme; a code nobody can scan is a payment nobody makes. Our printing guide has the sizing detail. Export the SVG for anything printed, and test-scan the printed proof rather than the screen.

Get started

Encode Your Wallet Address
— Free, and Exactly As Typed

Paste an address or a URI you wrote yourself, style the code, and scan it back before you print it. No amount is invented and no address is altered — what you type is what the code carries.

Unlimited static codes on the free planAny chain — we never parse your stringPNG free · SVG/PDF paid, never watermarked

Create Your QR Code

Crypto is one option among many: QR codes for payments covers the rest. For the plain-text mechanics behind an address code, see text QR codes; to repoint a link after printing, dynamic QR codes; and before you scan anything you did not print, how QR code scams work.