Bair Development
QuickNotes Obscura Private text pseudonymizer
Local-first · No accounts · No cloud

Use AI. Keep your details private.

Obscura replaces names, organizations, and places in your text with neutral placeholders, right on your device. Paste the safe version into any AI tool, then bring the answer back and restore the originals exactly.

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iPhone, iPad & Mac beta · Privacy policy

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ExactRestore

The sensitive part never leaves your device. Obscura finds and swaps details locally, keeps the key to undo it in an encrypted vault on your device, and has no servers to send anything to. What you share with an AI tool is only the placeholder version.

Three steps, one round trip

Sanitize

Paste text or open a file. Obscura swaps the sensitive details for placeholders like [PERSON_001]. You review every choice before anything is copied.

Analyze anywhere

Copy the sanitized text into any AI tool you like: summarize it, rewrite it, ask questions. The AI only ever sees placeholders.

Restore

Paste the AI's answer back in. Every placeholder is replaced with its original, exactly. Anything Obscura does not recognize is left alone, never guessed.

Built to be trusted with sensitive text

Exact restoration

Restoring is a precise swap of placeholders back to your originals, not a guess. Accuracy comes before clever detection.

Review before sharing

See every detection, accept or reject it, and merge variants like "Jordan" and "Jordan Avery" into one identity. A second-pass check flags anything that slipped through.

Smart suggestions

Likely names, organizations, places, addresses, awards, and titles are suggested and clearly marked "not certain". You stay in control, and you can switch suggestions off.

Encrypted projects

Saved projects hold only the placeholder mappings, encrypted with AES-256 and a key kept in your device's secure keystore. Unlock with biometrics where available.

Clipboard auto-clear

Copied text is cleared from the clipboard after a delay you choose, so sensitive details do not linger in the background.

Auto-lock

Obscura locks after inactivity or when you leave the app, and hides its contents in the app switcher on iPhone and iPad.

Open your files

Import documents straight from your device and save any result as a plain .txt file. Files are read locally and never uploaded.

Light & dark

Follow your system appearance or pick light or dark yourself in Settings.

Works offline

Everything Obscura does happens on your device, so it works with no connection at all.

Open documents or paste text

Obscura extracts readable text locally from:

TXT Markdown CSV DOCX PDF (text-based)

Honest by design

You make the final call

No automatic tool catches everything. That is why Obscura shows you each detection and re-checks the sanitized text before you copy it. Read it over before you share.

Pseudonymization, not magic

Placeholders hide specific details, but the surrounding context of your text still goes to whichever AI tool you choose. Use the tools and settings you are comfortable with.

Scanned PDFs

PDFs must contain real text. Scanned images need to be run through text recognition first, and older .doc files should be saved as .docx.

No account, no tracking

There is nothing to sign up for, no analytics, and no ads. See the privacy policy for the full details.