Products
Four product suites
Nelstack groups practical tools into clear products. Open a suite to browse calculators, document formats, stamps or signatures.
Finance
Live metal rates and free India-focused calculators for savings, loans, investments, tax and retirement.
Open FinanceBill Generator
Indian bill, invoice and receipt formats with live preview and PDF download.
Open Bill GeneratorStamp Maker
Free online stamp and seal maker — templates, circular text, PNG/SVG and stamp a PDF.
Open Stamp MakerOnline Signature
Draw or type a signature, then sign PDFs and documents in your browser.
Open Online Signature
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