Free tools from F09 Tech
Free tools for small businesses
Simple tools that do one job well. No account, no watermark, and nothing you type is sent to our servers.
Invoice Generator
Make a professional invoice with your logo, then download it as a PDF. Free, no sign-up.
Open tool →Email Security Checker
Check whether scammers can send email as your domain. Free SPF, DKIM and DMARC test with step-by-step fixes.
Open tool →Password Generator
Create strong random passwords, memorable passphrases and PINs, generated securely on your device.
Open tool →Password Strength Checker
See how long your password would take to crack and whether it has leaked in a data breach.
Open tool →Email Signature Generator
Build a professional email signature and copy it into Gmail, Outlook or Apple Mail in two minutes.
Open tool →
Invoice templates by industry
Start from an example built for your line of work, then make it yours.
Why use these tools
Actually free
No trial, no account and no "upgrade to remove the watermark." Use them as often as you like.
Private by design
Everything runs in your browser. Your clients, prices and contact details never reach our servers.
Built by IT pros
Made by a managed IT and cybersecurity company, from email security checks to invoices that look right in every inbox.