Privacy-First Document & Data Validation Tools


Browser-local validation tools for working files you prefer not to upload. No account is required. Selected file contents are processed in your browser and are not uploaded to BigBears; ordinary site analytics and advertising may still load.

Available Tools

CSV Import Preflight Validator

Validate CSV files before uploading to Salesforce, HubSpot, Shopify, or any platform. Detects encoding issues (UTF-8 BOM), delimiter mismatches, missing required fields, data type violations, and duplicate keys — all in your browser.

  • Schema presets: Salesforce, HubSpot, Shopify, custom
  • Encoding selection (UTF-8, UTF-16, ISO-8859-1, CP1252) plus BOM warnings
  • Delimiter auto-detection or manual override
  • Required field, data type, regex pattern validation
  • Downloadable error report (CSV + JSON)
  • Client-side parsing with Papa Parse

Open CSV Import Preflight →

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PDF Print Preflight Validator

Inspect PDF page dimensions and declared MediaBox, CropBox, TrimBox, and BleedBox values locally before sending a file to a printer.

  • TrimBox / BleedBox / ArtBox / CropBox inspection
  • Bleed adequacy check (3mm / 0.125in standard)
  • Rendered page-size comparison
  • Declared PDF page-box inspection
  • Expected trim-size comparison
  • Explicit limitations for color, PPI, fonts, overprint, transparency, and PDF/X checks
  • Downloadable JSON report
  • Client-side PDF.js processing

Open PDF Print Preflight →

Why Zero-Upload Matters

  • File boundary: selected file contents are not submitted to BigBears by these tools
  • Local processing: checks run in the current browser tab without a file-upload step
  • Device limits: speed and maximum usable file size depend on the browser, memory, and device
  • Transparent scope: each tool states what it can and cannot verify

Official Problem References

These tools address documented, recurring failures in official platform documentation:

Technical Architecture

  • CSV: Papa Parse in the browser; speed depends on file size and device
  • PDF: PDF.js plus a limited source scan for declared page boxes
  • File boundary: file contents are not included in BigBears analytics or advertising requests
  • Open source: Both tools use permissively licensed libraries

Last updated: 2026-09-05. These noindex pages are functional evidence pilots with intentionally limited capabilities.

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