Free tools
GST tools and HR and payroll tools for Indian businesses, plus automotive engineering tools on Dervo Automotive. Free with a quick sign-in, and nothing you type leaves your browser.
GST tools and HR and payroll tools for Indian businesses, plus automotive engineering tools on Dervo Automotive. Free with a quick sign-in, and nothing you type leaves your browser.
Thirteen free tools, from CAN bit timing, DBC compare, ARXML compare and UDS lookup to ISO 26262 hardware metrics, MC/DC test cases and a requirements checker, now live on Dervo Automotive, our automotive engineering site.
For Indian businesses: GST invoices and GST on any amount.
Fill in the form and your tax invoice builds itself on the right. CGST and SGST or IGST are picked from the two states. Save it as a PDF or print it.
Open →Add GST to a price, or take it out of a price that already includes GST, and see the CGST, SGST or IGST split.
Open →For Indian employers: salary, PF, ESI, professional tax and payslips.
Turn a CTC into monthly take-home pay, with PF, ESI, professional tax and income tax for tax year 2026-27, and see which tax regime leaves you more.
Open →See exactly what goes to EPF, EPS, EDLI and ESI each month, from the employee and from the employer.
Open →See what a correct Indian payslip contains and how PF, ESI and professional tax are worked out. The PDF is a marked sample for reference; real payslips are issued by the employer's payroll.
Open →Dervo CRM and Dervo HR & Payroll handle invoices, GST, payroll, PF, ESI and payslips every month for small businesses. Free for 30 days.