Calculators & Tools for Everyone
Good Tool is a collection of tools and calculators that are free to use with no login required
Key Features
- Optimised for speed and performance
- Beautiful and elegant UI
- Fully internationalised into 100+ languages
- Privacy-first: No signup or personal data
- Modern tech stack
Our Technology
Built on Next.js, React, and Vercel, Good Tool delivers a fast, seamless user experience. Strict TypeScript ensures code reliability, while Tailwind CSS enables responsive design across all devices. Supabase provides rapid database performance for localised content, making our tools easily accessible worldwide at blazing speeds.
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Supported Languages
Our calculators are available in 94 languages, making them accessible to users worldwide.
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Unique Calculators
Access our growing library of 428 specialised calculators for every need. Thousands more coming soon.
About Good Tool
Trevor Loucks
Creator
Good Tool started as an experiment in AI-powered translations and evolved into a comprehensive calculator platform serving users worldwide. Built with Next.js and React, Good Tool delivers lightning-fast calculations while maintaining privacy and accessibility.
Good Tool is part of a network of apps developed by Trevor Loucks which includes Dynamoi (music industry ad tech), Hardly Creative (ecommerce ad tech), and 92 Keys (music).
Example Calculators
Check out some of our calculators