Free Business Calculators

SIP Calculator

Calculate the future value of monthly SIP investments in mutual funds. Instant results, no signup.

Loans

EMI Calculator

Calculate Equated Monthly Installment for home, car, personal, or business loans with full interest breakdown.

Income Tax Calculator

Estimate income tax under both regimes and pick the one that saves you more. Updated for Budget 2025 slabs.

Planning

Inflation Calculator

See how inflation erodes the value of money over time and how much you’ll need to maintain today’s lifestyle.

Mutual Fund Calculator

Calculate future value on a lumpsum mutual fund investment. Compare equity, debt, and hybrid assumptions.

GST Calculator

Add or remove GST on any amount. Get the CGST/SGST split for intra-state and IGST for inter-state invoices.

HRA Exemption Calculator

Compute the tax-exempt portion of your House Rent Allowance. Works for metro and non-metro cities, old regime.

PPF Calculator

See your tax-free PPF corpus after 15 years — or longer with 5-year extensions. Sovereign-backed compounding.

FD Calculator

Calculate maturity value and interest earned on bank Fixed Deposits. Choose compounding frequency — monthly to yearly.

NPS Calculator

Project your NPS corpus at 60, lumpsum, annuity purchase, and monthly pension. Works for Tier I subscribers.

TDS Calculator

Free TDS calculator for FY 2026-27. Covers 194A, 194C, 194H, 194I, 194J, 194Q and more. Enter payment amount, select section, get TDS instantly.

Salary In-Hand Calculator

Free CTC to in-hand salary calculator for India. Deducts PF, professional tax, and income tax (new & old regime). FY 2026-27 tax slabs.

Advance Tax Calculator

Free advance tax calculator. See the Jun, Sep, Dec, and Mar installment amounts for FY 2026-27 and the interest payable under Section 234B and 234C if installments are missed.

Invoice Generator

Free online invoice generator for India. Add GSTIN, HSN/SAC codes, multiple line items, and GST rates. Print or save as PDF — no signup required.

Planning

JSON to Excel / CSV Converter

Paste any JSON array or object, pick columns, preview the table, and download as Excel (.xlsx) or CSV. Runs entirely in your browser — your data never leaves your device.

GSTR-1 JSON to Excel Converter

Upload a GSTN GSTR-1 JSON file and download a structured multi-sheet Excel, or upload the Excel back to recreate the JSON. Every section (b2b, cdnr, cdnur, exp, hsn, docs) becomes its own sheet.

GSTR-2 JSON to Excel Converter

Upload a GSTR-2 JSON and get a multi-sheet Excel with every inward supply section. Or upload the Excel back to reconstruct the JSON for review. All processing stays in your browser.

GSTR-3B JSON to Excel Converter

Upload a GSTR-3B JSON from GSTN and get a clean Excel showing outward supply totals, ITC available, exempt/nil/non-GST supplies, and tax payment details. Or upload Excel to reconstruct JSON.

GSTR-2A JSON to Excel Converter

Upload a GSTR-2A JSON (auto-populated by GSTN from supplier filings) and download a structured multi-sheet Excel. Or upload an Excel to reconstruct the JSON. All in your browser.

GSTR-2B JSON to Excel Converter

Upload the GSTR-2B JSON (the static monthly ITC statement from GSTN) and get a multi-sheet Excel for each section. Or upload Excel back to reconstruct JSON. All in your browser.

GSTR-2A vs Purchase Register Reconciliation

Upload your GSTR-2A JSON and your purchase register Excel. The tool matches invoices two-stage — exact then fuzzy — and shows matched, mismatched, probable, source-only, and target-only rows. Download the report in one click.

GSTR-2B vs Purchase Register Reconciliation

Upload GSTR-2B JSON and your purchase register. The tool matches invoices exactly and via fuzzy logic, color-codes every row by match status, and generates a download-ready reconciliation report.

GSTR-1 vs E-Invoice Reconciliation

Upload GSTR-1 JSON and your e-invoice register (Excel). The tool matches invoices two-stage, flags any missing or value-mismatched invoices, and outputs a color-coded reconciliation report.

GSTR-2 vs IMS Reconciliation

Upload GSTR-2 or GSTR-2B JSON and your IMS (Invoice Management System) register. Match invoices two-stage, see which are accepted/pending/rejected in IMS vs your books, and download the reconciliation report.

GSTN Error Reports Analyzer

Upload one or more GSTN error report JSON files. The tool aggregates all errors, groups them by error code, shows the affected section and invoice, and lets you filter and download a clean error register.

Invoice Parser

Drop an invoice image or PDF, get business name, GSTIN, line items, taxes, and totals as a clean table. Export to CSV.

GST ITC Calculator

Compute eligible Input Tax Credit (ITC) on B2B purchases under CGST/SGST/IGST. Handle ineligible items under Section 17(5), reversal rules, and proportionate credit.

GST Late Fee Calculator

Calculate late fee for delayed GSTR-1, GSTR-3B, GSTR-4, GSTR-9 filing. Handles nil-return rates, capping rules, and CGST/SGST split.

GST Interest Calculator

Calculate interest on delayed GST liability under Section 50 — 18% p.a. on net cash payment, 24% p.a. on wrongly availed ITC. Day-accurate, audit-ready.

GSTIN Search & Validator

Validate any 15-character GSTIN — checks state code, embedded PAN, entity nature, check digit. Decodes state, registrant type, and registration sequence.

HSN / SAC Code Finder

Find the correct HSN code for any product or SAC code for any service. Search by name or code, get the applicable IGST rate, and copy in one click.

Websites

Tools to estimate website costs, conversion rates, and ROI on your web presence.

Explore Website Services

Meta Tag Generator

Free meta tag generator. Create HTML meta tags for SEO, Open Graph (Facebook/LinkedIn), and Twitter Cards. Live character counter + Google SERP preview.

Slug Generator

Free URL slug generator. Convert titles to kebab-case, snake_case, camelCase, or PascalCase slugs. Strip stop words, set max length, one-click copy.

Schema Markup Generator

Free schema markup generator. Create JSON-LD structured data for FAQPage, LocalBusiness, and Product schemas. Copy as <script> tag — Rich Results ready.

Page Speed Impact Estimator

Estimate the revenue and conversion uplift from improving your website load time. Based on Google and industry research on speed-conversion correlation.

Hosting Cost Calculator India

Estimate website hosting costs in India across shared, VPS, cloud, and managed WordPress plans. Compare total annual spend across providers.

Domain Name Availability Checker

Check domain availability across .com, .in, .co.in, .io, .net, and .org instantly using Cloudflare DNS. No signup, 100% free.

Favicon & OG Image Size Checker

Check if your uploaded images meet recommended dimensions for Open Graph (1200×630), Twitter cards, favicons, Apple touch icons, and PWA icons instantly.

Lighthouse Score Estimator

Plug in FCP, LCP, TBT, CLS, and Speed Index — see the Lighthouse Performance score those numbers would produce, with Lighthouse 10 weights.

OG Image Generator

Type a title, subtitle, and brand name — get a 1200×630 PNG ready for og:image, twitter:image, and LinkedIn previews. Live preview, one-click download.

Favicon Converter

Upload a square PNG, get the full favicon set — 16, 32, 48, 64, 128, 180, 192, 512 px — plus the HTML snippet to drop into <head>. All in your browser.

Image to Favicon, OG, Apple & PWA Icons

Upload any image and generate the full icon set in one batch: favicon (16-512 px), Apple touch icon (180), PWA icons (192, 512), Open Graph (1200×630), Twitter card (1200×628). Plus copy-paste HTML and manifest.json snippets. 100% browser-side.

Color Palette Generator

Pick a brand color, get tints and shades, an analogous palette, or a complementary scheme — copy-paste hex codes, ready for your design tokens.

CSS clamp() Generator

Type your minimum and maximum sizes, viewport range — get the exact `clamp(min, slope * vw + intercept, max)` CSS rule. No more breakpoint sprawl.

HTML to Markdown

Paste HTML — get clean Markdown out. Useful for migrating CMS content to a static site, scrubbing rich text into plain prose, or piping content into LLMs.

Responsive Breakpoint Tester

Type your URL — see it rendered in iframes at standard device sizes side by side. Fast spot-check before you reach for DevTools.

Explore Marketing Services

Marketing

Tools to measure campaign performance, track UTMs, and calculate marketing ROI.

ROAS Calculator

Free ROAS calculator. Enter revenue, ad spend, and gross margin to see ROAS, break-even ROAS, and profit on ads. Works for Meta, Google, and any paid channel.

CAC Calculator

Free CAC calculator. Compute Customer Acquisition Cost, LTV, LTV:CAC ratio, and payback period. Essential for measuring paid growth efficiency.

UTM Link Builder

Free UTM link builder. Generate GA4-compatible UTM-tagged URLs for any campaign. Supports source, medium, campaign, term, and content parameters.

CPC / CPM / CTR Calculator

Free CPC, CPM, and CTR calculator. Enter ad spend, impressions, and clicks to instantly calculate all three metrics. Works for Meta, Google, YouTube, and any paid channel.

Ad Budget Split Calculator

Divide your digital advertising budget across Google, Meta, YouTube, LinkedIn, and other channels with visual split and spend projections.

Email Marketing ROI Calculator

Calculate email campaign ROI, revenue per subscriber, and cost per conversion for your email marketing program in India.

Facebook & Instagram Ad Cost Estimator India

Estimate Facebook and Instagram ad costs, expected reach, CPM, CPL, and total spend for Indian campaigns with industry benchmarks.

Google Ads Budget Calculator

Calculate Google Ads daily and monthly budget based on target CPC, monthly search volume, and desired click share for Indian campaigns.

Email Subject Line Tester

Type your subject line — see character count, mobile preview width, spam-trigger words, urgency score, and a 0–100 quality score. Optimised for Indian inboxes.

Headline Analyzer

Type your headline — get a score for word count, power-word density, emotion, clarity, and predicted CTR. Tuned for Indian B2B and B2C landing pages.

WhatsApp Broadcast Cost Calculator

Enter recipients and message category — Marketing, Utility, Authentication, or Service. Get total cost using current Meta India rates (April 2025+).

Influencer ROI Calculator

Enter creator fee, follower count, expected engagement and conversion rates, AOV — get reach, attributed conversions, revenue, ROI %, and CAC. Indian creator economy tuned.

Landing Page Conversion Estimator

Enter ad budget, CPC, landing-page conversion rate, AOV — get visitors, conversions, revenue, ROAS, and CAC. Run scenarios for paid Google/Meta campaigns.

SEO Keyword Difficulty Estimator

Plug in keyword length, top-10 average DR, top-10 backlink count, and SERP feature presence — get a 0-100 difficulty score and a content plan recommendation.

CAC + Payback Calculator

Calculate Customer Acquisition Cost, LTV:CAC ratio, and payback period in months. India-SMB presets for SaaS, D2C, services, edtech, fintech, and real estate.

Explore Analytics Services

Analytics

Calculators that turn raw numbers into decisions — attribution, funnels, and growth metrics.

LTV Calculator

Free LTV calculator. Compute Customer Lifetime Value using churn-based formula. See LTV:CAC ratio and payback period. Works for SaaS, D2C, subscription businesses.

Break-Even Calculator

Free break-even calculator. Enter fixed costs, variable cost per unit, and selling price to see break-even units, revenue, contribution margin, and margin of safety.

Conversion Rate Calculator

Free conversion rate calculator. Compute CR%, revenue per visitor, and the additional revenue of improving to your target conversion rate. Works for any website or landing page.

Churn Rate Calculator

Free churn rate calculator. Enter customers at start/end of month and new customers to compute monthly churn %, retention rate, annual churn, and average customer lifetime.

A/B Test Significance Calculator

Free A/B test significance calculator. Enter control and variant visitors and conversions to get p-value, z-score, confidence level, and a clear significant/not significant verdict.

MRR / ARR Calculator

Free MRR and ARR calculator. Enter new, expansion, churned, and contracted MRR to see net new MRR, ARR, month-over-month growth rate, and net revenue churn.

Unit Economics Calculator

Free unit economics calculator. Enter price, COGS, CAC, and monthly churn to see gross margin, contribution margin, LTV, LTV:CAC ratio, and CAC payback in one dashboard.

Cash Flow Forecast Calculator

Build a 12-month cash flow forecast with revenue growth, fixed costs, variable costs, and one-time expenses. Track monthly closing balance.

NPS Score Calculator

Enter promoters, passives, and detractors — get NPS score, percentages, and a benchmark band against industry. Standard 0-10 scale, the SaaS-canonical formula.

Funnel Drop-off Calculator

Define each funnel step and the user count at that step — get drop-off rate per step, overall conversion rate, and a visual bar chart. Spot the worst-leaking step in one glance.

Cohort Retention Calculator

Enter D0 cohort size and how many users came back on D1, D7, D30, D90 — get retention percentages, a visual decay curve, and benchmarks against best-in-class apps.

DAU / MAU Ratio Calculator

Type your daily active users and monthly active users — get DAU/MAU ratio (stickiness) plus benchmarks: WhatsApp 71%, Instagram 60%, Spotify 35%, Slack 30%, median SaaS 13%.

Bounce Rate Impact Calculator

Enter monthly visitors, current and target bounce rate, conversion rate, and AOV. See revenue lost to bouncing — and revenue recoverable by fixing the page.

Explore Automation Services

Automations

Developer utilities for webhooks, cron schedules, regex, mock APIs, and workflow tooling.

Webhook Tester

Generate a unique URL, point your webhook at it, and inspect every header, body, and IP that arrives — no signup.

Cron Expression Parser

Paste any 5-field cron expression and see when it will actually run — in your local timezone, with relative times.

JSON ↔ YAML Converter

Paste JSON, get YAML. Paste YAML, get JSON. Both directions, instant, with proper error messages.

Regex Tester

Paste a pattern and a test string, see matches highlighted in real time. Capture groups, flags, replacement preview — all in your browser.

API Mock Data Generator

Define a schema, get a JSON array of realistic Indian fake data — names, GSTINs, phone numbers, amounts. Perfect for demos and tests.

n8n Workflow Cost Estimator

Enter your workflow count and execution volume — see whether n8n Cloud Starter, Pro, or self-hosted comes out cheapest.

UUID Generator

Generate up to 1,000 UUID v4s at once. Lowercase, uppercase, no-dashes, or short formats. Copy all in one click.

Cron to English

Type a cron expression, get a clear English description. "0 9 * * 1-5" → "At 9:00 AM, Monday through Friday".