Free tools
GST tools for Indian businesses
Search HSN codes, validate GSTIN format, and remove GST from totals — free in the browser. Save history and bill offline in the PocketGST app.
HSN Code Lookup
Search HSN/SAC codes with GST rates for goods and services.
Try toolGSTIN Validator
Verify GSTIN format, checksum, state code, and PAN.
Try toolReverse GST Calculator
Remove GST from an inclusive total — CGST/SGST or IGST split.
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All tools offline in PocketGST
HSN search, GSTIN checks on invoices, GST math with history — no internet at the counter or on site.