I have been building small free browser tools with AI-assisted coding. The goal is simple: ship tools that solve one focused problem, run fast, and do not require sign-up.
Here are four tools from this week that are useful for different everyday workflows.
1. Free TDEE and calorie calculator
Freetdee helps estimate daily calories, BMR, and macros for weight loss, maintenance, or muscle gain.
Tool: https://freetdee.com/
2. Free invoice generator
InvoicePad is a simple browser-based invoice generator for freelancers and small operators. It is designed for quick PDF invoice creation without a login flow.
Tool: https://invoicepad.net/
3. Baby growth percentile calculator
BabyPercent helps parents understand baby weight, height, and head circumference percentiles in plain English. It is educational only, not medical advice.
Tool: https://babypercent.com/
4. Apple iWork file viewer
iWorkViewer helps open Pages, Numbers, and Keynote files online when you are on Windows or another device without Apple apps installed.
Tool: https://iworkviewer.com/
Why I keep these tools small
Small tools are easier to maintain, easier to search for, and easier to explain. Each one should do one job well before adding extra features.
I am keeping a public index of the tools and crawl notes here:
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