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About Monkilla

Monkilla builds free, privacy-first online tools that anyone can use — no signup, no uploads, no catch.

What we make

Our free tools section at monkilla.com/tools offers a growing collection of calculators and converters: a loan EMI calculator, SIP and NPS investment calculators, a GST calculator with CGST/SGST split, an income-tax comparison, plus everyday utilities like a QR code generator, password generator, Base64 encoder, image-to-PDF converter, unit converter, BMI, age and word-count tools.

Our principle: your data stays yours

Every tool runs entirely inside your web browser. When you convert an image to PDF or generate a QR code, the file never leaves your device — there is no server upload. We think privacy should be the default, not a premium feature.

Why free

These tools are supported by unobtrusive advertising, which lets us keep them free for everyone, forever, with no accounts and no paywalls.

The team

Monkilla is an independent project built and maintained by a small team in India, focused on making genuinely useful tools for students, professionals, and small business owners.

Have a tool idea?

We add new tools based on what people actually need. Get in touch — the best ideas come from readers.