Reliable tools for demanding professionals
mtdevworks creates digital products that professionals can trust — from precise Indian tax calculators to high-performance APIs and open-source developer libraries. Everything we build is designed to be fast, accurate, and dependable from day one.
Our Mission
Professional software shouldn't feel like a compromise
Too many online tools make you choose between accurate and fast, between free and reliable, between simple and powerful. We believe you shouldn't have to choose.
mtdevworks builds products that are simultaneously precise, performant, and accessible — so that whether you're calculating your tax liability, validating LLM outputs, or publishing a new npm package, you're working with something you can depend on.
68
Live Products
and growing
< 10ms
API Latency
p99 response time
31
Finance Tools
tax & investment calculators
0
Dependencies
core open-source packages
What We Stand For
Our guiding principles
Accuracy above all
Every calculator implements the exact statutory formula. No approximations — the numbers you see are the numbers that matter.
Performance by default
Our APIs respond in under 10 milliseconds. Our tools load instantly. Speed is not an afterthought — it is the baseline.
Privacy first
Your data stays on your device. Our client-side tools never transmit your financial or personal information to any server.
Developer-grade quality
Open-source packages ship with TypeScript declarations, zero dependencies, and comprehensive test coverage — ready for production the day you install them.
Built for India
Our finance tools comply with the latest Indian tax legislation — from FY 2025-26 slabs to GST rules — keeping you accurate and current.
Free at the core
All web-based tools are free, no account required. Paid tiers exist only where infrastructure costs demand it — never as a gate on basic functionality.
Product Categories
What we build
Finance Calculators
Accurate income tax, GST, HRA, SIP, EMI, FD/RD, and salary optimisation calculators for Indian professionals — updated for FY 2025-26.
JSON Guardian
Enterprise-grade JSON validation, repair, and schema enforcement API for LLM-powered applications. Sub-10ms response times.
Developer Tools
Open-source NPM and pip packages plus IDE extensions — zero-dependency, TypeScript-ready, and production-hardened.
Work with us
Interested in a custom integration, licensing, or partnership? We respond to every serious enquiry.
hello@mtdevworks.com