Document Validator — PAN/Aadhaar/GSTIN — Free Online Tool

Offline checksum for Aadhaar (Verhoeff), PAN, GSTIN (Mod36), Voter, Passport, DL — bulk 50, shareable URL. Free, fast, private — runs 100% in your browser. No uploads, no tracking.

Document Validator — PAN/Aadhaar/GSTIN is part of Privacy & Security on Rajlabs. It runs entirely in your browser — your files and text are never uploaded to a server. The same tool is available on all three primary hosts: utility.rajlabs.in, tools.rajlabs.in and utils.rajlabs.in. Bookmark https://utility.rajlabs.in/document-validator or install it as a standalone app from your browser.

What you can do

Offline checksum for Aadhaar (Verhoeff), PAN, GSTIN (Mod36), Voter, Passport, DL — bulk 50, shareable URL. Free, fast, private — runs 100% in your browser. No uploads, no tracking. With Document Validator — PAN/Aadhaar/GSTIN you get live results as you type, one-tap presets for common cases, copy buttons, download/export (PDF, PNG, CSV, JSON where applicable) and a shareable URL that remembers your inputs. Dark mode and mobile responsiveness are built in — it looks great on phone, tablet and desktop.

How to use

1. Open Document Validator — PAN/Aadhaar/GSTIN at https://utility.rajlabs.in/document-validator.
2. Enter or upload your data — the tool validates and previews instantly in the browser.
3. Adjust presets, then copy, download or share the result. Add ?param=value to the URL to prefill for sharing.

Why this tool is different

• Private & offline: 100% client-side — no data leaves your device. Works on slow networks after first load.
• Accurate & fast: exact constants, Indian formats (crore/lakh, IFSC, bigha) and exam presets where relevant.
• Installable: install Document Validator — PAN/Aadhaar/GSTIN as its own app icon (PWA) — it opens directly to this tool.
• Free & no watermark: unlimited use, no signup, no ads covering content.

Tips

Use the category navigation to discover related tools — for example, after using Document Validator — PAN/Aadhaar/GSTIN try other Privacy & Security tools from the homepage. If you need a different format, the URL Lab, Code Formatter or Converters can chain your output. Found a bug or want a preset? Open an issue on GitHub — Rajlabs ships updates weekly.

FAQ

Is Document Validator — PAN/Aadhaar/GSTIN free? Yes, completely free with no limits.

Do you store my data? No — everything runs locally in your browser.

Can I use it on mobile? Yes — the layout adapts to phones and can be installed as an app.

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