Free tools. No signup. Works today.

AI for today.
Tools that make everyday tasks faster.

Free online tools for finance, productivity, and business — built with AI, designed for real people. No account. No tracking. Just open and use.

Browse all tools Join the AI community
The answer to life, the universe, and everything. These tools help with the rest.
8 Tools available
0 Signups required
100% Free, always
CH Swiss-hosted

Tools by category

View all tools →
Finance

Compound Interest Calculator

Plan long-term savings and visualize wealth growth with interactive charts.

Live

VAT Calculator

Add or remove VAT instantly. Supports DE, AT, CH, UK and all EU rates.

Coming soon

Profit Margin Calculator

Calculate gross, net, and operating margin. Includes markup vs margin explainer.

Coming soon

Break-Even Calculator

Find out how many units you need to sell to cover your costs.

Coming soon
Productivity

Dual Calculator

Two calculators side by side. Transfer results between them instantly.

Live

Pomodoro Timer

Simple 25/5 minute focus timer. Stay on task without distractions.

Live

Business Name Generator

Generate business names by industry. Checks domain availability instantly.

Coming soon

Suggest a tool

What tool would save you time every day? Tell us.

Free Community · German

AI training for everyone — not just tech people.

Teachers, craftsmen, small business owners: AI is already changing your field. Our free German-language community teaches you how to use tools like Google NotebookLM and Gemini in your daily work — step by step, no prior knowledge needed.

Google NotebookLM walkthroughs
HeyGen AI avatar tutorials
AI agents for everyday tasks
Free to join, always
Join the community on Skool
Free
Skool
KI Schulungen für jedermann
German-language AI training community for non-technical people.
NotebookLMGeminiHeyGenKI-Agenten
By Jürg Maier · Herrliberg, Switzerland

About AI42Day

Why 42?

In “The Hitchhiker’s Guide to the Galaxy”, 42 is the answer to life, the universe, and everything. The real challenge is finding the right question. AI42Day helps you ask better questions — and get useful answers, today.

These tools are built for real people doing real work: teachers preparing lessons, craftsmen calculating quotes, small business owners tracking margins. No PhD in computer science required.

Privacy by default

Calculations run in your browser. We don't store your data.

Fast and focused

Each tool does one thing well. No bloat, no upsells.

Built for everyone

If your grandma can use it, we did our job.

Free, forever

Supported by unobtrusive ads. No paywalls, no premium tiers.