ElkwaiReview text candidates
Email addresses, US phone patterns, IPv4 addresses, Luhn-valid card candidates and US SSN-shaped candidates. Add literal exact phrases for names or information not recognized by these patterns.
LOCAL FILE PREPARATION
Privacy Preparation Toolkit
Share a reviewed copy. Keep the original out of the export.
Inspect pattern candidates in text and structured files. Remove source metadata from images and cover selected regions with opaque pixels. Prepare cleaned copies on your own device, with a hash receipt of what went in and what came out.
Free: one local file, full review and cleaned-copy export. No account or upload. Pattern detection is incomplete; review is required.
01 Prepare files for the next handoff
Clean visible image content
Open PNG or JPEG. Add pixel regions, inspect opaque black coverage, then export a rebuilt PNG. Original metadata and transparency are not retained. No automatic image text detection is claimed.
Keep a restrained receipt
Cleaned copies receive neutral filenames. Receipts include source/output SHA-256, byte sizes and review counts, not source filenames, matched values or exact phrases. Originals are excluded.
02 Explicit changes, inspectable methods
| Input | Reviewed output | Important boundary |
|---|---|---|
| UTF-8 TXT | Selected spans replaced; overlaps merged | Undetected content remains |
| CSV | Reviewed cells, normalized quoting, formula escaping | All rows and cells retained; formatting changes |
| JSON | Whole selected tokens replaced; selected numbers become null | Selected keys renamed; duplicate keys rejected |
| PNG / JPEG | Opaque PNG pixels with selected regions covered | No original metadata or transparency; no OCR |
Each candidate needs a Redact or Keep decision. Every file needs preview confirmation before the batch export. Your originals are never overwritten. JSON numeric literals that are not selected retain their original precision.
03 Keep preparation offline
Privacy Preparation Toolkit 1.0.0
A signed-release ZIP containing the complete local workspace and its parsers. Extract it and open index.html in a current desktop browser. No local server or cloud connection required.
- Up to ten files per session; free workspace supports one
- TXT, CSV and JSON pattern review with exact phrases
- PNG/JPEG metadata removal and opaque region redaction
- Reviewed cleaned-copy ZIP and SHA-256 receipts
- Published methods, resource limits and third-party notices
$49one timeIntroductory pricing
One named user; purchased version only. Internal business and authorized client work. No subscription or per-file processing charge.
Checking purchase and private delivery availability.
Tax at checkout. Retrieve the ZIP within 30 days; keep using the downloaded version offline. Review the license, purchase terms and privacy notice.
04 Know the limits before importing
Bounded local processing
Text: 1 MiB/file and 50,000 CSV cells or JSON text/number tokens/file. Images: 5 MiB and 6 million pixels/file, 8,192 pixels/side. Session: 10 MiB of source files and 12 million image pixels. Up to 500 candidates/file, 50 exact phrases and 100 regions/image.
No hidden persistence
Files stay in browser memory. No upload, remote processing, AI, telemetry or automatic save in the workspace. Exported copies are yours to store. Source files, browser memory and backups are not securely erased.
Specific format support
UTF-8 TXT/CSV/JSON and still PNG/JPEG only. PDF, Office files, archives, binary text and animated PNG are not included. Unsupported or over-limit files are rejected rather than partially exported.
Human review remains essential
Patterns miss many identifiers and can flag non-sensitive text. No guarantee of anonymity or confidentiality; no GDPR or other legal compliance certification. Review the complete remaining content and exported copies before sharing.