Use AI on sensitive files.
Leak nothing.
Strip names, IDs and faces out of documents, audio and photos — entirely on your computer. Restore the originals when you’re done.
This is the real review experience, running here in your browser on sample data. Click a highlight to keep or redact it, select any text to add your own, then press Anonymize.
Everything you need to de-risk a sensitive file.
Anonymize documents
DOCX, PDF, XLSX, EML, TXT, MD, CSV — even scanned PDFs, with the text recovered on your device. Formatting kept; hidden metadata and tracked changes scrubbed.
Reversible
Placeholders swap back to the real values locally, so shared or AI-processed output stays usable.
Real PDF redaction
Burn boxes that actually delete the underlying text and metadata — not just cover it. Irreversible when you need it.
Audio, too
Transcribe recordings, separate speakers, and bleep spoken PII — all offline. More below.
Photos & faces
Blur faces on your device, box out anything the detector missed, and strip location and EXIF metadata. The original file is left untouched. More below.
Human review & custom terms
See every finding before anything changes — approve, add or remove. Keep your own always-remove / never-remove lists, and choose which categories to detect per run.
See Occlira in action.
Audio, too — transcribed and bleeped on your own machine.
Calls, interviews, depositions, therapy sessions — transcribed locally, split by speaker, with spoken personal data bleeped out of the track itself. You get an anonymized, reversible transcript. No cloud, no per-minute fees.
- Local transcription — files never leave your computer
- Speaker separation (diarization)
- Bleep spoken PII in the audio track itself
- Reversible, anonymized transcript
Blur faces and scrub photo metadata — on your machine.
Occlira finds and blurs faces locally, lets you box out anything it missed (blur, mosaic or solid box), and strips the GPS and camera data baked into the file. The original is left untouched, and nothing is ever uploaded.
- On-device face detection and blur — nothing uploaded
- Blur, mosaic or solid-box masking styles
- Strip location & EXIF metadata (GPS, camera, timestamps)
- Draw a box over anything the detector missed
The desktop app is the core. It also reaches into your tools.
Browser extension
Anonymize text and file attachments directly on ChatGPT, Claude and Gemini before you hit send. Restore the AI’s reply in place.
Add to Chrome →Microsoft Word add-in
Shield a document’s PII from inside Word — with review — as a clean replace or tracked changes. Restore later.
Claude Desktop connector
Let Claude work on your files through Occlira — it only ever sees the anonymized version. Guided modes for reports, memos, redlines and summaries.
De-risk your first file today.
The full app, free for 14 days. Your files never leave your computer.
Built for people who are accountable for other people’s data.
Lawyers & small firms
Review and redline contracts, NDAs and case files with AI — without exposing client identities. Real PDF redaction for disclosure.
See how they use it →Healthcare & therapists
Notes, referrals and session recordings stay on-device. Anonymize before you use any AI tool or share outside the practice.
See how they use it →Consultants & accountants
Client spreadsheets, invoices and payroll — de-risked locally before they touch an AI assistant or leave your laptop.
See how they use it →HR & recruiting
Employee records, payroll and candidate files. Strip identities before you analyze or send outside the team; restore locally when you’re done.
Journalists & researchers
Protect sources in documents and recorded interviews. Bleep names from audio; keep a reversible record for yourself.
See how they use it →Compliance & DPO teams
Handle DSARs and disclosure requests on-device. Real PDF redaction for hand-offs, plus a local audit log of what was processed.
Serious detection, not just regex.
A multilingual AI model works alongside checksum-validated patterns to cut false positives. A legal/boilerplate filter avoids over-redacting statutes, courts and country names.
- Checksum validation for IBANs, cards & national IDs
- 7 languages: EN, DE, FR, IT, RU, NL, ES
- Custom always-remove / never-remove term lists
Privacy isn’t a setting. It’s the architecture.
We’re open about every network call the desktop app can make — and none of them carry your documents or PII.
Documents, audio and photos — on your device, for a one-time price.
Most tools do part of this. Occlira does all of it — in one place.
| Occlira | Cloud / online tools | By hand (PDF tools) | |
|---|---|---|---|
| Documents, spreadsheets & email | ✓ | ✓ | PDF only |
| Audio — detect & bleep spoken PII | ✓ | Some | ✗ |
| Photos — face blur + EXIF/GPS removal | ✓ | Rarely | ✗ |
| Connectors for Word, AI chats & Claude Desktop | ✓ | API / dev setup | ✗ |
| AI finds it — you approve every match | ✓ | Automated | All by hand |
| Stays on your device — no upload, no account | ✓ | ✗ | ✓ |
| Restore the originals after AI (round-trip) | ✓ | Varies | ✗ permanent |
| Price | Pay once | Subscription / per-GB | Subscription |
Cloud tools upload your files and bill monthly; hand-redaction does one format and can’t be undone. Occlira does all three — documents, audio and photos — on your device, and hands the originals back when you’re done.
The questions people ask before trusting us with client files.
What if it misses a name?
You review every finding before anything changes — nothing is redacted without your OK. And detection is measured, not promised: ~97% of sensitive values on a public legal-document benchmark, with contact and financial IDs near 100%.
Is it OK for client-confidential files?
Processing runs entirely on your device: no upload, no account, works offline. Privacy by architecture — a fit for GDPR, HIPAA and professional-privilege workflows.
Will the AI still give useful answers?
Yes. Placeholders are consistent — <PERSON_1> stays the same person throughout — so structure and meaning survive. Restore then swaps the real values back into the AI’s answer, locally.
Is it hard to learn?
Open a file, review the highlights, press Anonymize. Most people do their first real document minutes after installing — and the trial is the full app, so you can check on your own files.
Windows or Mac?
Both — Windows 10/11 (64-bit) and macOS (Apple Silicon). One license per device; deactivate to move machines.
Another subscription?
No. Occlira is a one-time purchase — a perpetual license, with free updates within the major version. And the free trial comes first: no account, no card.
Try it free. Buy once. Keep it forever.
The trial is the full app — no feature gates. A license just keeps it running after 14 days. No subscription.
No key, no sign-up.
- The complete app — every feature
- No sign-up, no license key
- All formats & all integrations
- Processing stays 100% local
Yours forever. Free updates within the major version. Node-locked to 1 device — deactivate to move machines.
- All document, spreadsheet, email, audio & photo formats
- Browser extension, Word add-in & Claude connector
- Human review, custom term lists & per-run settings
- Free updates within the major version
- Perpetual — no subscription
Bigger team, or a server deployment?
Self-hosted licensing with thin clients, volume pricing, invoicing and priority support — tailored to your organization.
Works offline after activation
Frequently asked questions
No. Detection and anonymization run entirely on your device. The only network calls are license/update/model-download and optional diagnostics — never your documents.
Yes — anonymization is reversible. Restore happens locally, so shared or AI-processed output stays usable.
A browser extension for ChatGPT/Claude/Gemini, a Microsoft Word add-in, and a Claude Desktop connector.
DOCX, PDF, XLSX, EML, TXT, MD, CSV, and audio (MP3/WAV/M4A/FLAC/OGG).
40+ PII types via an AI model plus checksum-validated patterns, across multiple languages and countries. See our public benchmark for measured accuracy.
No. Download and use it free for 14 days — no sign-up, no key. The trial is tied to your device, so reinstalling won’t reset it.
A one-time, perpetual, single-device license. Deactivate to move devices. 14-day free trial first, no key needed.
Read up before you paste.
Try Occlira free for 14 days.
No data leaves your computer. No account needed.