QR Code Generator — Create QR Codes
Generate QR codes from text or URLs with customisation.
Error Correction
What to do next
Related tools
Barcode Generator
Generate barcodes in CODE128, EAN-13, UPC, and more formats.
developerURL Encoder / Decoder
Encode or decode URL components.
developerBase64 Encoder / Decoder
Encode or decode text and files to/from Base64.
developerPassword Generator
Generate strong, secure passwords with crypto-random entropy.
developerAbout QR Code Generator
QR Code Generator is a free, in-browser developer tool. Generate QR codes from text or URLs with customisation. The page exposes a small surface — input, controls, output — so a first-time visitor can complete the job without reading documentation.
Anyone who works with developer utility on a casual basis — students learning new languages, backend developers inspecting requests, engineers debugging API payloads — finds QR Code Generator a quick way to get the result. The page loads in under a second, the controls are visible from a single screen, and the result downloads or copies in one click.
QR Code Generator is a static page plus a client-side engine. The browser does the work; there is no separate backend in the loop for the actual processing. That architecture is why the tool starts immediately, why it does not depend on the load on a remote service, and why running multiple jobs in a row does not slow it down.
From a technical standpoint, QR Code Generator is JavaScript and the qrcode encoder running in your tab. The browser is the runtime; the page is the interface. Maximum input size: 0 MB per run.
QR Code Generator works well as a bookmarked utility you reach for when you need it. The first visit shows you what the tool does; the second is when you realise it is a low-friction option for the task and worth keeping in your tab list.
QR Code Generator sits in a small group of related tools. Useful neighbours include Barcode Generator, URL Encoder / Decoder, Base64 Encoder / Decoder, and Password Generator. They are designed to compose: the output of one is a sensible input to the next, so a multi-step task is usually a sequence of single-click operations.
The output handed back by QR Code Generator is `qrcode.png`. If you would prefer to keep the result in the browser instead of downloading it, you can copy it from the result panel and paste it directly into another tab — useful when the next tool in your workflow expects pasted text rather than a file.
On limits: 0 MB per file is the ceiling. Output formats and quality settings are listed in the controls panel above, and they apply to every run.
The transformation in QR Code Generator is deterministic — the same input plus the same options produces the same result every run. That predictability matters when the result has to match an upstream specification or be reproducible later.
Some context on why QR Code Generator exists in this form: modern File APIs, high-performance JavaScript engines, and well-maintained open-source libraries now make it possible to perform developer utility work entirely in the browser. QR Code Generator is built on top of that capability, which is why a single page can host the full pipeline.
If you want to get the most out of QR Code Generator, three small habits help. Drag-and-drop is faster than the file picker once you get used to it. The keyboard shortcut for downloading the result is whatever your browser uses for "save link as," because the result is a normal download. And if you are working on a sensitive file, processing in an Incognito or Private window is a good extra layer — it leaves no trace in browser history when the tab closes.
If the result is not what you expected, the most common causes are easy to check. Confirm the input is under the 0 MB ceiling — files just above the cap fail silently because the engine refuses to allocate the buffer. Confirm the input is one of the supported formats. And if the page itself feels slow, try closing other heavy tabs to free up memory; the engine runs in your browser, so it competes for the same resources as everything else open.
QR Code Generator produces deterministic output: the same input plus the same options always produces the same result. That predictability matters when the result has to match an upstream specification or be reproducible later.
Open the workspace above to start using QR Code Generator. The engine loads on the first interaction so the page itself stays light, and once the tool is warm it processes subsequent jobs quickly. The moment the page is interactive, the tool is ready to do real work on your file.
How it works
- 1Open the QR Code Generator workspace above. The interface is a single page, so there is nothing to navigate.
- 2Select the developer file you want to process — drag-and-drop and the file picker both work.
- 3Adjust the options to match what you need. Sensible defaults cover the most common case, so you can usually skip this step.
- 4Hit the run button. the qrcode encoder does the work in your browser tab.
- 5Grab the output named `qrcode.png` as soon as the run completes. You can also copy the result instead of downloading if the next tool in your workflow accepts pasted input.
- 6Re-run with different settings as often as you want. Each run produces a fresh output and the original file on disk is never modified.
Common use cases
- Hash a string for a quick reproducibility check using QR Code Generator.
- Format a noisy log line into something a teammate can read.
- Encode binary content for transport in a JSON body.
- Inspect a regex against a test string before committing it.
- Compare two API responses to spot a regression.
- Generate a quick fixture without leaving the browser.
- Generate boilerplate from a single specification line.
- Convert between data formats while wiring up an integration.
- Decode a token to confirm its claims during a debugging session.
FAQ
What can I encode in a QR code?
Any text, URL, email address, phone number, or Wi-Fi credentials.
Can I customise the colours?
Yes — set custom foreground and background colours for your QR code.
What is error correction?
Higher error correction means the QR code can be scanned even if partially damaged. Choose L, M, Q, or H levels.
Does QR Code Generator upload my file to a server?
Your file is processed inside your browser by the qrcode encoder. The engine reads the file's bytes from your tab's memory, computes the result, and writes the result back into the tab. You can confirm what the page does by opening developer tools and watching the Network tab during a run — the requests you see are for the tool's static assets only.
Will QR Code Generator keep working in a year?
QR Code Generator is updated whenever the underlying engine releases an improvement or a bug fix. Because the tool is delivered as a static page, every visit fetches the latest version automatically — there is no "version" to manage on your end. If a particular release ever changes default behaviour, the change is documented on Favtoo's changelog so you can confirm what shifted.
Are jobs run with QR Code Generator stored anywhere?
Favtoo keeps no copy of your file because Favtoo never receives your file. QR Code Generator runs entirely in your browser, the input is held only in your tab's memory, and closing the tab discards it. There is no opt-in cloud history, no "recent jobs" panel synced to an account, and no server-side retention to configure — the architecture simply has nowhere for your file to be stored.
Can QR Code Generator run inside a corporate firewall?
QR Code Generator is a static page running an open-source engine in your browser, so a typical corporate firewall does not get in the way as long as it allows JavaScript to load from Favtoo. For teams that need to host it themselves on an internal network, the underlying engine (the qrcode encoder) is open-source and can be packaged into a private build with the same behaviour. Reach out via the Contact page if that is something you are exploring.
Are there any restrictions on using QR Code Generator at work?
QR Code Generator can be used for personal and commercial work alike — there is no separate "business" licence to purchase. The output you generate is yours to use however you want, including in client deliverables, internal documents, or commercial products. Favtoo's only ask is fair, individual use; the tool is not designed to be embedded as a backend service or wrapped behind an API for resale.
Which file formats does QR Code Generator accept?
The accepted formats are listed in the upload area on the tool itself. If your input is in a format that is not directly supported, convert it first using one of Favtoo's converter tools — every Favtoo converter outputs a file that is a clean input to the next tool in the chain.
Why does QR Code Generator feel slow on large inputs?
Most jobs finish in seconds. Speed scales with input size and with how many CPU cycles your browser tab has available — the engine runs in your browser, so it shares resources with whatever else you have open. For inputs near the 0 MB ceiling, expect anywhere from a few seconds to roughly a minute on a typical laptop. Closing other heavy tabs noticeably speeds things up.
Is there a desktop version of QR Code Generator?
No installation is needed. QR Code Generator runs as a normal web page, with no browser extension, no native helper, and no separate desktop client to download. That is partly a privacy choice — extensions can request broad permissions, while a regular page is sandboxed by default — and partly a convenience one: you can use QR Code Generator on any computer you have temporary access to without leaving anything installed on it.