Neksio Table Capture Privacy Policy

Effective Date: October 5, 2026 · Neksio Table Capture Chrome Extension v1.0.7

This Privacy Policy applies specifically to the Neksio Table Capture browser extension (Manifest V3, v1.0.7) and its official website at https://neksiotool.com/neksio-table-capture/. We are committed to transparency, local-first privacy, and minimal data processing.

1. Webpage & Captured Table Data (100% Local In-Browser Processing)

Neksio Table Capture is architected around a local-first processing engine:

• DOM Inspection & Extraction: When you invoke the extension to detect or capture HTML tables, DOM parsing, cell extraction, table filtering, auto-column width calculations, and file formatting (.xlsx, CSV, JSON, Markdown) are executed entirely in your local browser JavaScript memory.
• Zero External Transmission: Your captured table data, cell values, and webpage contents are never uploaded to, stored on, or processed by Neksio servers or third parties.
• No AI or Cloud Parsing: Table detection and extraction rely strictly on deterministic client-side DOM parsers without cloud-based AI processing.

2. Chrome Extension Permissions & Purpose

Neksio Table Capture uses Manifest V3 and requests only the minimal permissions required for table capture and file export:

• activeTab: Allows the extension to read HTML table elements and DOM structures on the active browser tab only when you explicitly invoke the extension popup, in-page workshop, or context menu.
• storage: Used to save your local extension settings (language preferences, pagination delay, page limits, installation identifier) and cached Pro entitlement tokens in chrome.storage.local.
• downloads: Enables downloading generated files (Excel .xlsx, CSV, JSON, Markdown) directly into your local computer's default Downloads directory.
• contextMenus: Provides a convenient right-click shortcut on webpage tables to launch table extraction or open the workshop panel.

The extension does not request broad background host permissions, webRequest interception, browser history access, or identity/profile permissions.

3. Local Browser Storage & IndexedDB Usage

The extension uses local browser storage mechanisms strictly on your device:

• chrome.storage.local: Stores local preferences, the installation UUID, and the cryptographic license entitlement cache.
• IndexedDB (NeksioTableCaptureProDB): Used in Pro Auto Capture for temporary multi-page session checkpointing and chunked row assembly. All IndexedDB data resides strictly within your local browser database and can be deleted at any time.

4. License Activation & Neksio Central Licensing Communication

We maintain a strict boundary between table data and technical licensing:

• Free Tier: Operates 100% offline with zero server calls.
• Pro License Validation: When activating or verifying a Pro license key, the extension communicates over HTTPS with Neksio Central (https://api.neksiotool.com).
• Technical Licensing Data Transmitted: Verification requests send strictly: license_key, product_slug (neksio-table-capture), random 36-character installation_id (UUID RFC 4122), and extension version (1.0.7).
• No Browsing History or Table Data: Visited URLs, webpage addresses, table headers, and table data are never transmitted in licensing requests.
• Asymmetric Verification: Neksio Central issues cryptographically signed entitlements using ECDSA P-256 (SHA-256), which are verified locally via the browser WebCrypto API.

5. Google Sheets Workflow

Neksio Table Capture enables exporting to Google Sheets using a direct system clipboard workflow:

When you click "📋 Copy" or "📊 Google Sheets", table data is formatted and placed into your local operating system clipboard buffer for you to paste (Ctrl + V) into your Google Sheets spreadsheet. The extension does not request Google OAuth account access, cloud storage tokens, or automated Google Drive API synchronization.

6. Contact & Support Communications

If you contact us via the contact form on our website or email support@neksiotool.com, we collect your name, email address, inquiry category, and message text solely to respond to your question or provide technical assistance. We do not sell or share contact details with third-party marketers.

7. Data Retention & User Control

• Local Data: Captured table data is kept in memory or temporary local storage/IndexedDB only during your active capture session.
• Deletion: You can purge all locally stored settings, sessions, and license tokens at any time by clearing your browser's extension storage or uninstalling the extension.
• Licensing Records: License activation records at Neksio Central are retained for active subscription validation and license lifecycle management.

8. Third-Party Services & Trackers

The Neksio Table Capture Chrome Extension contains zero third-party analytics trackers, zero advertising scripts, and zero user-fingerprinting SDKs.

9. Security Practices

We implement standard, robust security practices:

• Encrypted Licensing Transport: All licensing calls to Neksio Central use HTTPS / TLS 1.3 encryption.
• ECDSA P-256 Signatures: Entitlements are signed with asymmetric cryptography, preventing local license tampering.
• In-Memory XML Sanitization: Cell contents are sanitized in memory to prevent malformed XML injections during Excel workbook compilation.

10. Privacy Inquiries & Contact

If you have questions about this Privacy Policy, your data privacy rights, or Neksio Table Capture, please contact our engineering and privacy team:

Email: support@neksiotool.com / privacy@neksiotool.com
Official Website: https://neksiotool.com/neksio-table-capture/
Neksio Tool Team

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