Client-side mathematical verification of 12-digit Indian Aadhaar numbers via the Verhoeff algorithm (Dihedral D5 group), PAN card entity codes, and 15-character GSTIN tax identifiers without cloud server transmission.
Instantly inspect and audit CSV and Excel datasets in browser memory. Computes null percentages, distinct value cardinality, numeric min/max/mean/median, and inferred SQL types.
Sanitize and mask sensitive personally identifiable information (PII), names, emails, phone numbers, and IDs in CSV datasets locally in RAM before sharing with AI models or third parties.
Identify and purge duplicate rows across whole records or custom composite key columns with whitespace normalization, case-sensitivity toggles, and detailed audit statistics.
Convert CSV spreadsheets and tabular files into optimized, syntactically escaped SQL INSERT statements for PostgreSQL, MySQL, SQLite, and BigQuery with type inference and batch chunking.
Bidirectional conversion between RFC 4180 CSV tables and JSON object arrays. Features automatic number/boolean type inference, dot-notation nested properties, and formatted output.
Convert between Comma (CSV), Tab (TSV), Semicolon (European Excel), and Pipe (PSV) delimiters with auto-detection, RFC 4180 quote preservation, and zero data corruption.
Client-side mathematical verification of 12-digit Aadhaar, 10-char PAN entity types, and 15-char GSTIN structures
The official UIDAI Indian Aadhaar number uses the Verhoeff algorithm, a sophisticated error-detection method based on the dihedral group D_5 (symmetries of a regular pentagon).
Unlike standard Luhn (Mod 10) checks, Verhoeff catches 100% of single-digit transcription errors and 100% of adjacent transposition errors (e.g. typing 45 instead of 54).
The calculation uses three lookup matrices: multiplication table D, permutation table P, and inverse table Inv. VedKit executes this full algebraic sequence locally in browser RAM.
An Indian Income Tax PAN is a 10-character alphanumeric code structured as AAAAA0000A:
P = Individual, C = Company, H = Hindu Undivided Family (HUF), F = Partnership Firm / LLP, A = Association of Persons, T = Trust, G = Government Agency.A 15-character Indian GSTIN comprises:
27 for Maharashtra, 07 for Delhi, 29 for Karnataka).Z (reserved for future use).Transmitting employee or customer Aadhaar and PAN numbers to unverified external validation APIs constitutes an unauthorized personal data transfer under India's Digital Personal Data Protection Act (DPDP Act, 2023). VedKit performs all checksums and structural entity evaluations 100% client-side: zero packets are transmitted across the network.
How Indian ID & Tax Checksum Validator (Aadhaar, PAN & GSTIN) processes files securely inside your device memory
Every byte of your file is loaded directly into browser ArrayBuffers. Data is processed in volatile sandbox memory and flushed immediately when you close or refresh this tab.
Calculations and image matrix transformations leverage client-side GPU / Canvas2D engines for zero-latency output without server queuing or rate limits.
Generated files strictly follow international ISO specifications (JPEG JFIF, PDF 1.7, Web Crypto API) to guarantee acceptance on all official portals and banking systems.
Quick 4-step guide for instant results
Choose Aadhaar (12-digit), PAN (10-char), or GSTIN (15-char), or use Auto-Detect mode.
Enter the identifier or click one of the quick presets to test valid and invalid checksums.
The engine runs the Verhoeff multiplication tables or Modulo-36 check digit math in RAM.
Review the validation pill, decoded taxpayer entity status, state origin, and format checklist.
Common questions and verified answers about Indian ID & Tax Checksum Validator (Aadhaar, PAN & GSTIN)