Do QR codes from this site expire?

No. The codes are static, meaning the destination is encoded directly into the pattern itself. Scanning never contacts this website, so the code keeps working permanently, even if the site goes offline.

Are my files uploaded to a server?

No. All conversion happens in your browser using JavaScript. Files never leave your device, which you can verify by converting while disconnected from the internet.

Can I convert HEIC to JPG on Windows or Android?

Yes. HEIC photos are decoded in JavaScript rather than relying on the browser's own support, so iPhone photos convert to JPEG in Chrome, Firefox and Edge on Windows and Android as well as in Safari.

Can I merge PDF files without uploading them?

Yes. Add several PDFs and a Combine option appears, merging them in the listed order entirely within the browser. PDFs can also be split, rotated, or reduced to a chosen page range.

Which file formats can be converted?

Images including PNG, JPEG, WebP, GIF, BMP, SVG and AVIF; PDF to images or text; spreadsheets including XLSX, CSV, TSV and JSON; DOCX to HTML, Markdown, text or PDF; and audio formats including MP3, M4A, OGG, FLAC and AAC to WAV.

Yes. There is no sign-up, no account and no file size limit beyond what your device memory can handle.

Free QR Code Generator & File Converter — No Upload

What this tool does

ConverterQR is two small utilities on one page: a QR code generator and a file converter. Both run entirely as JavaScript inside your browser. There is no account, no upload step and no server holding your documents, which is the part most people care about when the file is a contract, an invoice or a passport scan.

Do these QR codes expire?

No. The codes made here are static, meaning the destination is encoded directly into the black and white pattern. A phone reads the link, Wi-Fi details or contact card straight out of the image without contacting this site at all. The code keeps working even if this website disappears, which is not true of the dynamic codes that most QR services hand out.

The trade-off is that a static code cannot be edited after it is made. If the web address changes, generate a fresh code. There are also no scan statistics, because nothing is reporting back. The differences are covered in full in static vs dynamic QR codes.

QR code types you can make

Link or plain text — the everyday case, for a website, menu or document.
Wi-Fi network — guests join by scanning instead of typing a long password.
Email, phone call or SMS — opens the right app with the details filled in.
Contact card — a vCard that saves straight into a phone's address book.
Map location — coordinates that open in the phone's default maps app.

Codes can also be read back: upload a screenshot or photo and the text inside the code is shown, which is a sensible way to check where a code leads before scanning it with a phone.

File formats you can convert

The converter handles the formats people actually get stuck on day to day:

Images — PNG, JPEG, WebP, GIF, BMP, SVG, AVIF and TIFF convert between each other, into PDF, into a multi-size favicon, or into a CSS data URI, with optional resizing.
iPhone photos — HEIC and HEIF decode to JPEG, PNG or WebP in any browser, including Chrome on Windows where the browser itself cannot open them.
PDF — render pages to PNG or JPEG, extract the text, split into one file per page, pull out a page range, rotate, or merge several PDFs into one.
Spreadsheets and config — XLSX, XLS, CSV, TSV, JSON and YAML convert between each other, plus HTML and Markdown tables.
Documents — DOCX to HTML, Markdown, plain text or PDF; Markdown and HTML convert both ways; EPUB to text or HTML.
Audio and video — MP3, M4A, OGG, FLAC, AAC and WAV convert between MP3 and WAV, and the soundtrack can be lifted out of MP4 or MOV video.
Base64 — encode any file, or decode Base64 text back into the original file.

Converting between video formats, DRM-protected PDFs, legacy .doc files and Apple iWork formats are not supported. Those genuinely need software outside a browser tab, and any site claiming otherwise is uploading your file somewhere to do it.

Step-by-step guides

Longer write-ups on the tasks people most often search for:

All of them are listed on the guides page.

Common questions

Is it really free?

Yes, with no sign-up and no file limits beyond what your device's memory can handle. Very large files, roughly above 100 MB, can exhaust a browser tab.

Can I convert HEIC photos on Windows?

Yes. HEIC files are decoded in JavaScript rather than relying on the browser, so iPhone photos convert to JPEG in Chrome, Firefox and Edge on Windows and Android, where the browser has no HEIC support of its own.

Are my files uploaded anywhere?

No. Conversion happens in your browser using JavaScript. You can confirm this yourself by opening your browser's network tab while converting, or by disconnecting from the internet after the page loads — conversions still work offline.

What error correction level should I choose?

Medium suits most uses. Choose High if the code will be printed small, displayed outdoors, or partly covered by a logo, since it can still be read when damaged. Low produces the simplest pattern and fits the most data. See error correction levels explained for the detail.

Which image format should I download?

Use PNG for screens and general use. Use SVG for anything being printed, since it stays sharp at any size — posters, signage, business cards.

Why does my converted file look different?

Converting DOCX to Markdown or plain text keeps the words and structure but drops page layout, fonts and positioning, because those concepts do not exist in the target format. Converting to PDF produces a clean, plain layout rather than a copy of the original design.