RedactCA Redaction & anonymization for Indian financial and personal data
  1. 1Add files
  2. 2Review & tune
  3. 3Apply & download
.pdf.xlsx.csv.docx.json.txt
Every file is processed locally in your browser. There is no server and no API call carrying your data.
What does touch the network

Library code — and, on first OCR use, the Tesseract language model — is fetched from a public CDN. That traffic contains no document content. For fully offline use, save the libraries alongside this file.

This is a supplementary tool. Detection is probabilistic and will miss or over-flag items — review every output before sharing it.

Files

Drop files here
or click to browse · multiple files supported
.txt .csv .json .pdf .xlsx .xls .docx

Redaction mode

Pseudonyms are consistent: the same value always maps to the same placeholder, across every file in this session.
Per-type overrides

Detection patterns

Account number by length
Bank account and CIF numbers have no reliable fixed format. Prefer column/key targeting for structured files. This length rule is a blunt fallback and will over-match.
Custom patterns & term lists
PDF & OCR options
Both are true redaction — the text is gone from the file, not merely covered. Content-stream editing is verified after writing: any page where the text survives is automatically flattened instead. Stream editing can shift the remainder of an edited line slightly; flattening cannot, but drops the text layer and enlarges the file.
Review defaults

Preview & review

Add a file to begin.

Detected entities

0
Selected
0
Found
No file selected.

Output

Originals are never modified — every download is a new file. Source data is wiped from memory once all outputs are downloaded.
Working…