- 1Upload
- 2Process
- 3Download
Smart Redaction (AI) online, free
Find names, addresses, IDs and card numbers and propose redactions for you to approve.
- Runs in your browser — no upload
- Free, no sign-up, no watermark
- Word 97–2003 (DOC)
- DOCX
- ODT / ODS / ODP
- RTF
- TXT
- JPEG
- PNG
How to use Smart Redaction (AI)
- 1
Add your PDF, Word 97–2003 (DOC) and DOCX file
Drop a file on the page, paste it, or click Select Files. Nothing is uploaded — it opens straight in your browser.
- 2
Fine-tune the settings
Set processing in the Fine-tune panel, or keep the defaults — they suit most files.
- 3
Run Smart Redaction (AI)
Press the start button. Processing happens on your device, usually in seconds.
- 4
Download the result
Save the finished file, or continue with another tool without downloading in between.
What Smart Redaction (AI) can do
- Processing — On-device keeps files private. Cloud AI (Claude) sends the extracted content to our zero-retention proxy, only after you agree
- Private by design — files are processed in your browser and never uploaded
- Free with no sign-up, no watermark and no daily limit
Smart Redaction (AI) — frequently asked questions
Is Smart Redaction (AI) really free?
Yes. Smart Redaction (AI) is free forever on Sada Files — no ads, no premium tier, no watermark, no daily cap that pushes you to pay. Every option on this page is available to everyone.
Do I need to sign up or create an account?
No. There is no account system at Sada Files. Open the page, drop your file, pick your options and save the result. History and saved workflows stay on your device.
Is my file uploaded anywhere?
No. Smart Redaction (AI) runs on your device — in your browser using WebAssembly, or inside the free native app. Your file never leaves your computer or phone, which is why there is no upload wait. Cloud AI is optional: only if you switch to it is the document's content sent to the AI service for that one request.
Which formats does Smart Redaction (AI) accept?
Smart Redaction (AI) accepts PDF, Word 97–2003 (DOC), DOCX, ODT / ODS / ODP, RTF, TXT, JPEG, PNG, WebP, AVIF, GIF, BMP, TIFF and HEIC / HEIF. Files are identified by their content, not their extension, so a mislabelled file still works.
Is there a file size or file count limit?
Only what your device can handle. Because processing happens locally there is no server cap, no queue and no "upgrade for larger files" message.
Can I chain Smart Redaction (AI) with other tools?
Yes. After every result a Continue with… menu lists every tool that accepts this output, and the file is handed over in memory. Save the chain as a workflow and re-run it on hundreds of files, or call it in one API request.
Does Smart Redaction (AI) work on my phone?
Yes. The web app works on Android and iOS browsers, and the free Sada Files app for Android, iOS, Windows, Linux and macOS runs Smart Redaction (AI) fully offline.
Related tools
- Redact PDFPermanently remove text and images — draw boxes, or search by text or regex for emails, phone numbers and IDs.
- Sanitize PDFRemove JavaScript, embedded files, links, forms, metadata and hidden layers before sharing.
- Chat with PDF (AI)Ask questions about one or many PDFs and get answers that cite page numbers.
- Classify Document (AI)Detect invoice, contract, ID, receipt, letter… to route workflows.
- Compare & Explain (AI)Plain-language explanation of what changed between two contract versions.
- Extract to Structured Data (AI)Invoice, receipt, resume, contract or your own schema → JSON, CSV or XLSX, in batch over thousands of files.
- Generate PDF from Prompt (AI)A letter, invoice or certificate from a prompt and a template.
- Rewrite / Proofread (AI)Fix grammar and tone in extracted text and export back to DOCX.

