Complete GST toolkit for Indian businesses. Calculate GST across all slabs, generate compliant invoices, validate GSTIN, and find HSN codes.
4free tools · No signup · 100% browser-based
Everything you need for GST compliance in one place. Our GST toolkit helps small businesses and freelancers calculate tax across all 5 slabs (0%, 5%, 12%, 18%, 28%), generate professional GST-compliant invoices, validate GSTIN numbers, and look up HSN/SAC codes.
All tools are free, require no signup, and process everything in your browser — your business data stays private.
Calculate GST for all slabs — add or remove tax instantly
Calculate GST for all 5 slabs (0%, 5%, 12%, 18%, 28%) simultaneously. Add or remove GST, switch between CGST+SGST and IGST, with Indian number formatting.
Create GST-compliant invoices in seconds
Generate professional GST invoices with auto HSN code lookup, CGST/SGST/IGST calculation, and instant PDF export. No signup required.
Validate and decode GSTIN with state and entity details
Validate GSTIN structure and check digit, decode state code, PAN, and entity type. Bulk validation mode. All 37 state codes supported. No external API calls.
Search HSN codes for goods and SAC codes for services
Search HSN codes for goods and SAC codes for services with fuzzy matching. See GST rate, chapter description, and code hierarchy. Free companion for GST invoicing.