Privacy-focused clipboard manager · GNOME

Check Before You Paste.

Copy as usual. CopyPasteBin warns when text looks like a password, key, personal data, or financial information. It helps you review, edit, or redact the content before use—while the decision about what to paste remains yours.

Download version 1.1 See how it works

runs locally
no account or telemetry
open source · GPL-3.0-or-later
version 1.1 · two installers

Why use it · Privacy-focused Clipboard Manager

A manager, but not a traditional clipboard archive.

Traditional clipboard managers focus mainly on storing, searching, and reusing copies. CopyPasteBin also provides a short history, but prioritizes spotting risk, preparing text, and protecting you from an unfortunate click on “Paste”.

Notice risk earlierA warning appears when text resembles a supported kind of sensitive information.

Keep the decisionThe app does not paste text or change the clipboard automatically by default.

Keep data on your deviceDetection and redaction run locally without uploading clipboard content.

Prepare safer textThe editor helps remove or anonymize selected values before use.

Example uses

When might CopyPasteBin help?

When writing a message: check whether copied text accidentally contains personal, contact, or financial information.
When working with code or a terminal: notice tokens, keys, and connection strings before pasting them into a conversation, issue, or documentation.
When using an AI tool: review copied text from a document, code, log, or command and redact sensitive data locally before pasting.
When sharing an image: manually cover selected areas of a photo or screenshot and save a new PNG copy.

Core features

Practical help for everyday copying and pasting.

Handy text editor

Open copied content, make manual changes, or redact detected fragments. The clipboard changes only after your confirmation.

Image redaction

Open a local PNG or JPEG, cover selected areas with rectangles, and save a new PNG. The original file remains unchanged.

Rules and exact exceptions

Custom markers stay local. Exceptions are limited to one exact low- or medium-risk detection.

15-item clipboard history

The history contains up to 15 recently copied text items and remains only in current-session RAM. Locking the screen, logging out, or disabling the extension clears it.

Four risk levels

Rules distinguish low, medium, high, and critical risk, with categories for contact details, financial data, tokens, private keys, and more.

Safe Paste

Use Super+Shift+V to check the text currently in the clipboard. If CopyPasteBin detects a risk, it opens the editor with a redaction suggestion. It will not paste or change anything without confirmation.

Pause and optional clearing

Pause durations remain visible while protection is paused, with Resume close at hand. Optional clipboard clearing stays off by default.

What it can recognize

email addresses, phone numbers, PESEL, IBAN, and payment cards;
service keys, tokens, JWTs, and database connection strings;
private keys, recovery keys, and valid BIP-39 phrases;
other heuristics depending on the filters you enable.

What it retains

a technical event history without clipboard content;
up to 15 text items in current-session RAM;
local settings, custom rules, and exact exceptions;
no telemetry, account, or cloud synchronization.

What you control

individual detection category filters;
a 30-minute, one-hour, or indefinite pause;
clearing after 1, 5, or 15 minutes—or keeping it off;
the system language, Polish, or English;
the local input image and destination for its redacted copy.

The real interface

CopyPasteBin in GNOME.

These screenshots show the CopyPasteBin 1.1 interface and demonstration data only.

CopyPasteBin 1.1 menu in GNOME with clipboard history, detection filters, text and image redaction, automatic clearing, and pause controls. — **GNOME desktop integration**The panel menu provides access to clipboard history, detection filters, custom rules, text and image redaction, automatic clearing, language settings, and pause controls.

CopyPasteBin 1.1 high-risk warning in GNOME after detecting a demonstration payment card in the clipboard. — **Sensitive data warning**CopyPasteBin displays a risk-colored warning with a safe category name and an action to review the copied text without exposing clipboard contents in the banner.

CopyPasteBin 1.1 clipboard editor highlighting a demonstration email address and password before redaction. — **Clipboard editor and sensitive data highlighting**The local clipboard editor highlights detected sensitive data and prepares redaction suggestions. The clipboard changes only after explicit confirmation.

CopyPasteBin 1.1 clipboard editor with an email address selected, anonymization and exclusion actions open, and quick text tools visible. — **Selective anonymization and text editing**A selected medium-risk detection can be anonymized or added as an exact exception. The expanded local editing tools provide formatting cleanup, case conversion, line operations, and find and replace.

CopyPasteBin 1.1 window with synthetic custom detection rules and exact exceptions for an example email address and documentation IP address. — **Custom rules and exact exceptions**Custom rules assign risk levels to stable, non-secret text markers. Exact exceptions suppress only a specific detection value and category.

CopyPasteBin 1.1 image redaction editor covering a synthetic postal address, email address, and signature with three manual masks. — **Local image redaction**The local image editor lets the user manually cover selected areas and save a new PNG copy without modifying the original image.

CopyPasteBin 1.1 clipboard history window showing eight synthetic recent text items stored only in temporary session memory. — **Recent clipboard in session memory**Up to 15 recently copied text items remain only in temporary memory. Locking the screen, logging out, or stopping CopyPasteBin clears the list; restoring an item requires an explicit action.

Privacy and security

Local, with no account or cloud.

Detection and redaction run on your computer. CopyPasteBin requires no account or connection to an AI service and does not save clipboard content in persistent history.

No telemetry or trackers

The app and this website do not send usage analytics.

Explicit limits

No warning does not mean a text is safe. Rules can miss something or raise a false positive.

No persistent content history

Up to 15 recent text items remain only in current-session RAM.

System requirements

Required environment.

Linux with GNOME Shell 50
a Wayland session
Python 3.11 or newer with venv
gjs, GTK 4, GdkPixbuf, GioUnix, and gnome-extensions
sha256sum to verify the downloaded archive

Supported distributions:

Ubuntu 26.04 LTS (GNOME Shell 50, Wayland)
Fedora Workstation 44, x86_64 (GNOME Shell 50.0, Wayland) — installation from the tar.gz archive

Currently unsupported: KDE Plasma, Cinnamon, Xfce, and X11 sessions.

Compatibility depends on the desktop environment and its version, not just the Linux distribution.

Release · 1.1

Two installers from the same source.

Choose one installation method:

DEB package — a system installation managed by APT.
tar.gz archive — a user-local installation without sudo.

On Fedora, choose the tar.gz archive; the DEB package is intended for systems managed by APT.

↓ Download DEB ↓ Download tar.gz Download SHA256SUMS

After downloading an installer and the checksum file, verify the package in the same directory:

sha256sum --check --ignore-missing SHA256SUMS

The 1.1 tar.gz includes English and Polish documentation. Start with README.md and INSTALL.md; use the language links to switch to Polish. Both site languages use the same archive.

Updating the DEB package currently requires downloading the new version and installing it through APT.

Do not install both variants at the same time.

Updates

CopyPasteBin does not check for updates in the background. New versions are published in GitHub Releases. To receive GitHub notifications, choose Watch → Custom → Releases in the repository.

Check the latest release →

See what changed in version 1.1 →

Full installation, upgrade, and uninstall guide →

Public roadmap

What’s next for CopyPasteBin.

We show accepted development directions and areas that we are still exploring. The roadmap has no fixed dates.

Planned

Easier content preparation

We want to improve the editor, custom rules, and redaction so CopyPasteBin fits everyday work more naturally—still locally and without taking the decision away from the user.

Exploring

Your clipboard. Your rules. Your decision.

Development was assisted by ChatGPT and Codex from OpenAI. CopyPasteBin is an independent project and is not affiliated with, endorsed by, or sponsored by OpenAI.

CopyPasteBin is open-source software licensed under GPL-3.0-or-later. Review the source, documentation, and security model. If you find a bug, report it publicly without attaching real secrets or private clipboard content.

View the repository Report an issue