Arcane Engine: Generators & Calculators tools
UUIDs, timestamps, cron, units, dates, EMI and more.
- UUID / ULID Generator
Generate UUID v4, v7 and ULIDs in bulk.
- Unix Timestamp Converter
Convert epoch seconds/ms to dates and back, with time zones.
- Cron Expression Explainer
Describe cron schedules in plain English and preview next runs.
- Unit Converter
Length, weight, temperature, data, area, volume, speed and time.
- Percentage Calculator
X% of Y, percentage change and ratio calculations.
- Date Calculator
Days between dates, age, and adding/subtracting time.
- Time Zone Converter
See an IST moment across multiple time zones.
- Loan / EMI Calculator
Monthly EMI in ₹, total interest and amortization schedule for home, car or personal loans.
- Random Number Generator
Random integers or decimals in a range, unique or not.
- GST Calculator (India)
Add or remove GST, split CGST/SGST/IGST, and reverse-calculate the base from an inclusive amount.
- Income Tax Calculator (India)
Compare the new vs old tax regime for FY 2025-26 with slabs, rebate, surcharge and cess.
- SIP & Lumpsum Calculator
Project mutual-fund SIP or lumpsum maturity value, with optional annual step-up.
- PPF / FD / RD Calculator
Maturity value and interest for Public Provident Fund, Fixed Deposits and Recurring Deposits.
- Loan Prepayment & Amortization
See how extra EMIs or a one-time prepayment cut your loan interest and tenure.
- PAN / IFSC / GSTIN Validator
Check the format and checksum of a PAN, IFSC or GSTIN — in your browser, no lookups.
- Chmod Permission Calculator
Convert Unix file permissions between octal (755) and symbolic (rwxr-xr-x), with special bits.
- Mock Data Generator
Generate realistic fake rows (names, emails, phones, cities) as JSON, CSV or SQL inserts.