All Tools In One Directory
Explore every product from the projects hub: finance, developer utilities, validation tools, and APIs — each with a clear landing page and a direct link to the live tool.
Precision tools for professionals
Tools built for real-world problems
From accurate Indian tax calculators to production-ready APIs — mtdevworks delivers reliable, fast, and thoughtfully designed digital products for developers and professionals.
60+
Products
< 10ms
API Response
Free
Core Tools
Built As A Complete Tools Platform
mtdevworks is not a single app, it is a connected ecosystem: calculators, developer utilities, APIs, and operational tooling designed for daily professional use.
Reliable For Real Work
Tax and finance calculators follow current Indian rules where it matters; developer utilities stay fast, deterministic, and easy to drop into your daily workflow.
Expansion Ready
We scale by design, not by accident. New tools integrate seamlessly without disrupting your workflow—and we’re always open for requests.
Popular Products
Trusted by professionals
From tax compliance to developer productivity — our most-used products, all free to use.
SaaS ProductJSON Guardian
Schema enforcement API for LLM outputs — validate, repair & enforce JSON in <10ms.
Finance ToolGST Late Fee Calculator
Calculate GST late fees & interest instantly for GSTR-3B, GSTR-1, GSTR-4, GSTR-9.
Finance ToolIncome Tax Calculator
Compare Old vs New tax regime for FY 2025-26 with all deductions.
Finance ToolEMI Calculator
Calculate EMI with amortization schedule, prepayment analysis, and interest savings.
Finance ToolSIP Return + Tax Calculator
Calculate SIP returns with CAGR, inflation adjustment, and LTCG tax impact.
Dev ToolJSON Formatter & Validator
Format, minify, sort keys, and validate JSON with real-time stats.
Get in Touch
Have a question, need a custom integration, or want to collaborate? We'd love to hear from you.