# KeePassXC — Cross-Platform Offline Password Manager

> KeePassXC is a free, open-source, cross-platform password manager that keeps your passwords in an encrypted local database. No cloud sync, no subscription, no telemetry — just a secure, audited vault protected by a master password and optional key file.

## Install

Save as a script file and run:

# KeePassXC — Cross-Platform Offline Password Manager

## Quick Use
```bash
# Install KeePassXC
# macOS
brew install --cask keepassxc

# Linux
sudo apt install keepassxc
# Or Flatpak: flatpak install flathub org.keepassxc.KeePassXC

# Windows: download from keepassxc.org

# CLI usage
keepassxc-cli open ~/passwords.kdbx
keepassxc-cli show ~/passwords.kdbx "Email/Gmail"
keepassxc-cli generate -L 24 -slUn
```

## Introduction
KeePassXC is a community-driven fork of KeePassX that stores all your passwords in a single, encrypted database file (.kdbx). Unlike cloud-based password managers (1Password, LastPass, Bitwarden), KeePassXC keeps everything local — your passwords never leave your machine unless you choose to sync the file yourself.

With over 27,000 GitHub stars, KeePassXC is the most popular desktop-first, offline password manager. It appeals to privacy-conscious users, security professionals, and organizations that require local-only credential storage for compliance.

## What KeePassXC Does
KeePassXC stores credentials in an AES-256 or ChaCha20 encrypted database file. You unlock it with a master password, optional key file, or hardware key (YubiKey). The application provides auto-type (fills credentials into any application), browser integration, TOTP support, SSH agent integration, and a powerful password generator.

## Architecture Overview
```
[KeePassXC Application]
C++ / Qt (native performance)
        |
   [Encrypted Database (.kdbx)]
   AES-256 or ChaCha20
   Argon2 key derivation
   Single file, portable
        |
+-------+-------+-------+
|       |       |       |
[Auto-Type] [Browser   [SSH Agent]
Fills into  Extension] Serve SSH
any app     Chrome,    keys from
via keyboard Firefox    the database
        |
   [Optional Sync]
   Syncthing, Dropbox,
   Google Drive, NAS
   (you control it)
```

## Self-Hosting & Configuration
```bash
# CLI operations

# Create a new database
keepassxc-cli db-create ~/passwords.kdbx

# Add an entry
keepassxc-cli add ~/passwords.kdbx "Email/Gmail" \
  -u "user@gmail.com" --url "https://mail.google.com"

# Generate a strong password
keepassxc-cli generate -L 32 -slUn
# Output: xK9#mP2$vR7@nL4&bQ8*cT5!wF3^hJ6

# Search entries
keepassxc-cli locate ~/passwords.kdbx "gmail"

# Export to CSV (for migration)
keepassxc-cli export ~/passwords.kdbx --format csv > export.csv

# Merge databases
keepassxc-cli merge ~/passwords.kdbx ~/backup.kdbx

# Sync strategy: use Syncthing for encrypted .kdbx sync
# across devices — KeePassXC handles merge conflicts
```

## Key Features
- **Offline First** — all data stored locally in an encrypted file
- **Strong Encryption** — AES-256 / ChaCha20 with Argon2 key derivation
- **Auto-Type** — fills credentials into any application via keyboard simulation
- **Browser Integration** — Chrome and Firefox extensions for web auto-fill
- **TOTP** — built-in authenticator (2FA) code generation
- **SSH Agent** — serve SSH keys directly from the password database
- **YubiKey** — hardware key as additional authentication factor
- **Password Generator** — customizable strong password generation

## Comparison with Similar Tools
| Feature | KeePassXC | Bitwarden | 1Password | LastPass |
|---|---|---|---|---|
| Storage | Local file | Cloud | Cloud | Cloud |
| Open Source | Yes | Yes (clients) | No | No |
| Cost | Free | Free + paid | Paid | Free + paid |
| Offline Access | Full (default) | Cached | Cached | Cached |
| Browser Extension | Yes | Yes | Yes | Yes |
| Mobile App | KeePassDX/Strongbox | Yes | Yes | Yes |
| TOTP | Yes | Yes (paid) | Yes | Yes |
| SSH Agent | Yes | No | Yes | No |
| Sync | Manual (your choice) | Cloud built-in | Cloud built-in | Cloud built-in |

## FAQ
**Q: How do I sync KeePassXC across devices?**
A: Sync the .kdbx file using Syncthing (peer-to-peer), cloud storage (Dropbox, Google Drive), or a NAS. On mobile, use KeePassDX (Android) or Strongbox (iOS) to open the same file.

**Q: Is local storage less secure than cloud?**
A: Local storage eliminates cloud breach risk but requires you to manage backups. The .kdbx file is strongly encrypted — even if someone gets the file, they cannot read it without your master password.

**Q: Can I migrate from Bitwarden/1Password/LastPass?**
A: Yes. Export from your current manager as CSV, then import into KeePassXC via Database > Import. KeePassXC supports multiple import formats.

**Q: What if I forget my master password?**
A: There is no recovery mechanism. If you forget the master password and do not have a key file backup, your data is permanently lost. This is by design for maximum security.

## Sources
- GitHub: https://github.com/keepassxreboot/keepassxc
- Website: https://keepassxc.org
- Documentation: https://keepassxc.org/docs
- License: GPL-2.0 / GPL-3.0

---
Source: https://tokrepo.com/en/workflows/409089e0-372b-11f1-9bc6-00163e2b0d79
Author: Script Depot