Short answer
Osenpa Clipboard keeps history on the current PC, but regular history is not encrypted. Privacy filters are also off until you enable them.
Test the rules you need, use Pause for a copying session that should not be recorded, and put only selected text in encrypted Locked Notes.
This guide covers Osenpa Clipboard Manager. Check requirements and download options before you begin.
On this page
When to use this method
Start with the Pause test below. Then configure capture filters and Locked Notes separately. These controls do not replace a password manager or company data loss prevention (DLP).
Prove Pause works with safe text
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Copy a visible test phrase
Copy
privacy-test-visible. Press Alt+V. You should see a new text card containing that phrase. -
Pause monitoring
Right-click the Osenpa Clipboard icon in the Windows notification area near the clock. Open Clipboard Monitoring and choose Pause 5 min. Use the hidden-icons arrow if the icon is not visible. Check that the menu says Monitoring: Paused before copying anything else.
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Copy a second test phrase
Copy
privacy-test-hidden. Windows copy and paste should still work, but this phrase should not appear in History. -
Resume and check History
In the same Clipboard Monitoring menu, choose Resume. Press Alt+V, select the Clipboard tab and search for
privacy-test-hidden. You should see no matching item. The visible token should still be there. Resume does not capture the item copied during Pause; copy a new harmless phrase to test that monitoring is active again.
Privacy controls and encryptionCapture controls, encryption scope and a practical failure case.
- How the controls work
- Initial blocking rules are disabled and require deliberate setup plus testing. Pause stops new history capture until you resume it; vault encryption applies only to content deliberately stored in Locked Notes.
- Important limit
- A filter that was never enabled cannot block a copied password. Enable and test the rule first, or use Pause before the sensitive sequence rather than assuming automatic protection.
How the three privacy layers differCompare regular history, capture prevention and encrypted Locked Notes.
Understand the three privacy layers
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Local history
Supported clips are written to a SQLite database on the PC so they can be searched later. The app does not upload clipboard contents for history, search, Smart Collections or Clipboard Stack, but regular history is not encrypted at rest.
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Capture prevention
Pause and privacy filters act before a new item is saved. They do not encrypt old history and do not move an existing item into Locked Notes. A blocked-item counter keeps only the date, reason and count, not the rejected text.
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Encrypted Locked Notes
Locked Notes is a separate area for text you choose to protect. Its contents do not appear in normal history, Favorites, Smart Collections, Clipboard Stack or Stack Profiles. Forgetting the PIN or passphrase means the notes cannot be recovered.
Set up private clipboard history
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Decide what the history is for
Write down which work should be searchable and how long it needs to remain. Auto-delete can be disabled or set from 1 to 360 hours. The regular unpinned item cap can be set from 100 to 100,000. Pins and Favorites are protected from routine cleanup, so review them separately.
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Configure privacy filters
In Settings, enable only rules you understand. You can exclude a selected application, add the most recent source application, skip a detectable private or incognito browser title, use built-in patterns for common sensitive text or enter a custom regular expression. Use the test box with invented text before relying on a rule.
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Pause capture when needed
Use the Pause control you just tested for 5 minutes, 15 minutes, 1 hour or indefinitely before copying a sensitive sequence. Windows copy and paste still work, but new copies are not stored by the app. The last item copied during Pause is not captured later when monitoring resumes.
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Set up Locked Notes
Create a PIN or passphrase you can remember without writing it in regular clipboard history. Locked Notes uses encryption and integrity protection inside the local database. Five incorrect PIN attempts cause a 30-second lockout. Auto-lock can be configured, and locking when the Windows session locks is enabled by default.
Try Locked Notes with a harmless sample
Use invented text for this first test. Keep your PIN or passphrase somewhere safe outside ordinary clipboard history: there is no forgotten-PIN recovery.
- Open Settings, choose Locked Notes, then Open Locked Notes.
- On first use, enter a PIN or passphrase in both fields and confirm. If you already have Locked Notes, enter the existing PIN and choose Unlock.
- Enter Practice note in the Label field. Type My pretend secret into Secret text, then choose Add. Typing directly avoids first putting the sample into regular clipboard history.
- Find Practice note in the list. Hold Show to reveal it, then release the button. The value should be masked again.
- Choose Lock. Open Locked Notes again, unlock it and check that Practice note is still there.
This protects that selected note, not your existing history. If you later copy a note into another app, read the clipboard precautions below first.
Use Locked Notes safelyOpen this before copying protected text into another program.
Copy a Locked Note without leaving it exposed
A protected note briefly enters the regular Windows clipboard when another program needs it. That clipboard is not encrypted Locked Notes storage, so use the shortest practical exposure time.
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Open and reveal only when needed
Titles can be searched and content search is optional. The value stays masked by default; hold the reveal control only while you need to read it. The app asks Windows to block screenshots where that protection is supported. Windows may be unable to apply the protection, so keep private information away from other people and cameras.
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Choose clipboard clearing
You can clear a copied vault value after 15, 30, 60 or 120 seconds. Clearing happens only if the Windows clipboard still contains that same value, so a newer copy is not erased by an older timer.
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Separate session-lock behavior
Locked Notes can lock when Windows locks. Clearing the general Windows clipboard at session lock is a different setting and is off by default. Review both controls instead of assuming one enables the other.
Assumptions to avoid
- Assuming regular history, Clipboard Stack and Locked Notes share the same encryption
- Treating title-based private-window detection as a guarantee
- Treating privacy filters as a password-manager or DLP guarantee
- Expecting blocking rules to work before setup
- Leaving regular history unreviewed after a sensitive task
Checkpoint: test your boundary
- Review Windows cross-device clipboard sync separately because it is controlled outside this app.
- Enable one blocking filter, copy a harmless test phrase and confirm it is not stored.
- Check that Pause keeps a harmless test clip out of history, then clear regular test history while leaving one deliberate Locked Note intact.
- Lock Windows and confirm Locked Notes requires authentication again. Test any clipboard-clear timer with invented text.
Network boundarySee which optional links and public metadata checks can use the network.
What can still use the network
Local capture and search do not send clipboard contents over the network. The app can check public version metadata in the background, cache a public supporter-name list, and open the Store, website, support, social or donation destination when you select a link. Those actions are separate from clipboard data. No cloud sync or team sharing is provided.