Business and office tools
Issue an invoice with a QR payment, create a QR code for Wi-Fi or a business card, generate a strong password and set up a consistent e-mail signature. Everything runs in your browser, I do not send your company details or passwords to my server.
6 tools · no account · no watermark
Or drop a file anywhere on this page, I show the tools that can handle it.
Most common tasks
- Invoice generatorInvoice as a PDF with QR payment, VAT and a saved supplier.Form → PDF
- QR code generatorQR code with logo and colors as PNG or SVG.Link, Wi-Fi, vCard → PNG · SVG
- Password generatorStrong password or passphrase, generated locally.Settings → passwords · TXT
- E-mail signatureSignature for Gmail, Outlook and Apple Mail.Form → HTML
Which tool do I need?
Start from what you want to do. Each tool opens straight away, without registration.
- I need to issue an invoice as a PDF quickly, with a QR payment.Invoice generator
- I want a QR code for a website, guest Wi-Fi or a business card.QR code generator
- I need a strong password nobody can guess.Password generator
- I want a consistent e-mail signature with a logo and links.E-mail signature
- I want to know what to improve in my Google Business Profile.Google profile check
- I want to politely ask customers for a review.Review request
Frequently asked questions
Are invoice details or passwords sent to a server?
No. The invoice, QR code, password and signature are created right in your browser. The invoice tool remembers your supplier details only in this browser so you do not have to fill them in again, and passwords are not stored anywhere.
Is the invoice really a PDF with a QR payment?
Yes. The invoice generator saves a real PDF file with full Czech diacritics and selectable text. It supports VAT payers and non-payers and a QR payment in the format Czech banking apps read.
Which QR codes can I create?
A link, text, Wi-Fi login, business card, e-mail and SMS. The tool warns you when the code is hard to read, e.g. low contrast or a large logo, and saves it as PNG or SVG for print.
How strong is the generated password?
The password comes from your browser's cryptographically secure randomness. You choose random characters or a passphrase made of words, which is easier to remember, and the strength is shown in bits based on the number of possibilities, not on looks.
Are the tools free, do I need an account?
All of them are free, with no registration and no watermark. I do not collect e-mails, just open a tool and start.
Need invoicing or a tool connected to your system?
I build custom apps, e.g. invoicing connected to your e-shop, stock or accounting software, so the same data is not retyped by hand.