Articles

Practical guides and explainers on finance, conversions, documents and productivity. Every post links to the Super Simple Digital Tools tool that gets the job done.

Business Documents

How to Create an Invoice That Actually Gets Paid on TimeA practical walkthrough of building a clear, compliant invoice and the small details that move it from late to paid.How to Write a Receipt That Holds Up at Tax TimeA practical walkthrough of what belongs on a receipt, when to issue one, and how to keep it audit-proof.Quotation Generator: a practical guide for freelancers & small businessesA quick, practical guide to the quotation generator — what it does, how to use it, and tips to get it right.How to Write a CV That Passes the ATS and Still Reads Well to a HumanA practical guide to structuring, wording and formatting a CV so both screening software and a hiring manager can read it.

Calculators

Text & Developer

How to Hit Any Word or Character Limit Without GuessingA practical guide to using live word and character counts to meet essay minimums, SEO limits, and social media caps with confidence.Which Text Case Should You Use? A Practical Guide for Writers and DevelopersA quick map of when to use UPPERCASE, Title Case, Sentence case, camelCase, snake_case and kebab-case, and how to convert between them in seconds.How to Read, Fix, and Shrink JSON: A Practical Formatter GuideA hands-on walkthrough of formatting, validating, and minifying JSON, plus the syntax rules that cause most validation errors.How to Make a QR Code That Actually Scans Every TimeA practical guide to choosing the right content, size, and error correction so your QR code works reliably in the real world.How to Generate a Password You Can Actually TrustA practical look at what makes a random password strong, how entropy is measured, and how to use a browser-based generator without exposing your secrets.Password Strength Tester: tips, tricks and how-toA quick, practical guide to the password strength tester — what it does, how to use it, and tips to get it right.Base64 Encoding and Decoding: A Practical Guide for DevelopersWhat Base64 actually does, when you should use it, the mistakes that corrupt your data, and how to decode strings safely in the browser.From Raw Export to Clean Workbook: Converting CSV to Excel the Right WayA practical walkthrough of converting CSV files to .xlsx without mangling dates, IDs, or special characters along the way.

Converters

File & PDF

Printables

Online Utilities

A quick guide to the Blank ScreenA quick, practical guide to the blank screen — what it does, how to use it, and tips to get it right.A quick guide to the Prank ScreenA quick, practical guide to the prank screen — what it does, how to use it, and tips to get it right.A quick guide to the Full-Screen Countdown TimerA quick, practical guide to the full-screen countdown timer — what it does, how to use it, and tips to get it right.A quick guide to the Full-Screen Pomodoro TimerA quick, practical guide to the full-screen pomodoro timer — what it does, how to use it, and tips to get it right.A quick guide to the Full-Screen StopwatchA quick, practical guide to the full-screen stopwatch — what it does, how to use it, and tips to get it right.A quick guide to the Full-Screen ClockA quick, practical guide to the full-screen clock — what it does, how to use it, and tips to get it right.