Gemma-4 is a free collection of 1,391 online tools — calculators, converters, PDF and image utilities, text and developer tools, generators and planners — built to save you time every day.
Our mission
Useful tools should be fast, private and free. We built Gemma-4 so that students, professionals, small businesses and families can solve everyday problems — planning a loan, checking a tax figure, merging a PDF or organising a trip — without installing apps, creating accounts or handing over their data.
What makes us different
- 1,391 tools in 23 categories — one website instead of dozens of bookmarks.
- Privacy first — most tools run entirely in your browser; server-side file tools process files in memory and discard them immediately.
- Made for India — ₹ and lakh/crore formatting, GST, Indian income-tax rules, Aadhaar and passport photo helpers — with international currencies one click away.
- Detailed guides — every tool has a step-by-step article on our blog.
- Optional free account — save favourites, see your history and sync checklists across devices.
Accuracy
We test every calculator against standard formulas and published examples. Results are for information and planning; for important financial, legal, medical or engineering decisions please confirm with a qualified professional. See our disclaimer.
Contact
Found a bug or want a new tool? Send us a message — we read everything.