
ClearTax
DesiCalc.in
StockCalc.in
Zone of Tools
Quicko
BankBazaar
CalcIQ.app
Free financial calculators for Indian taxpayers — Income Tax, GST, TDS, EMI, SIP, PPF & NPS. Updated for FY 2026-27. Built by a practising CA.

Deno
Full-stack Javascript Components for one-dev armies

Which is more popular?
Website, pricing, platforms and company facts side by side.
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| Website | calcguru.in | nullstack.app |
| Pricing | ||
| Platforms | — | |
| Company | Startup from India · 1 - 9 employees | — |
| Listed in |
In their own words, as submitted to SaaSHub.


CalcGuru (calcguru.in) is a free suite of 25+ Indian tax and personal-finance calculators for taxpayers, salaried professionals, traders and fellow CAs. It covers income tax (old vs new regime), advance tax and 234A/B/C interest, capital gains (including the post-23-Jul-2024 12.5% vs 20% property...
No description of Nullstack yet.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of Nullstack yet.
Walkthroughs and reviews on video.
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Full-stack with Nullstack - Part 3
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How often each product is chosen within a category, 0–100% relative to the other.


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A secure runtime for JavaScript and TypeScript built with V8, Rust, and Tokio.
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Free Indian tax calculators — Income Tax, Stamp Duty (all 29 states), RTO Road Tax. No login, instant results, private.
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Calculate SIP returns, EMI, income tax (FY 2026-27), FD maturity & 80+ more — free, instant, no login required. India's most comprehensive financial calculator suite.
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Free salary calculator with tax deductions and net pay calculations for multiple countries.
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Quicko is an online DIY Tax planning, preparing and filing platform for Individuals and Businesses in India.
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