# 1Password Application: AgileBits Also called 1 password, one password, agilebits AgileBits, Security A paid password manager from AgileBits. Watchtower is a 1Password feature. The window is 1Password.exe. It is not Bitwarden and you do not self-host it. ## What you need to know 1Password is a paid AgileBits vault. Watchtower is their feature name. 1Password.exe is the Windows client. The vault is hosted by AgileBits, not self-hosted like Bitwarden. Watchtower is a 1Password feature. KeePass is a local kdbx. LastPass is a different cloud vendor. - **What is it?**: Paid AgileBits vault. Watchtower lives here **Self-host?**: No. That is a Bitwarden story **Same as Bitwarden?**: No. Different vendor and license Feex says If I see 1Password.exe, I would not look for a self-host URL. AgileBits runs the service. Watchtower is their name for breach and reuse alerts. Bitwarden is a different product with a different license. ## What is 1Password? 1Password is AgileBits' paid password manager. 1Password.exe is the Windows app. Watchtower flags reused and breached passwords inside this product. ## If you have never used it If you want a paid vault with Watchtower, this is 1Password from AgileBits. Download the Windows app from 1password.com/downloads/windows. 1Password.exe is the desktop client. AgileBits hosts the account. There is no official self-host like Bitwarden. It is not KeePass, not LastPass, and not NordPass. ## What is it used for? **Paid hosted vault** Your items live on 1Password's service. You do not stand up a Bitwarden-style server. **Watchtower** Watchtower is 1Password's check for reused, weak, and breached passwords. Bitwarden has other reports. The name Watchtower is not theirs. **Travel Mode and sharing** Travel Mode hides vaults on a device. That is a 1Password feature, not a KeePass plugin. ## Who is it for? - Households and teams that already pay AgileBits - People who want Watchtower by name - Anyone told "just use Bitwarden" who specifically bought 1Password ## Current status Actively developed. This article is the Windows desktop app, not the browser extension alone. ## How old is it? AgileBits shipped 1Password in 2006, first on Mac, later Windows. Watchtower is a long-running 1Password name. Current Windows builds are the 8.x app family. A 1Password 4 local-vault-only setup is an older model. ## Versions Major channels first. Exact build numbers are not all verified here. 1Password 8 Windows Browser extension 1Password CLI ## System requirements Values follow the publisher's public guidance. Workload still changes the real need. ### Minimum | Operating system | Windows 10 or Windows 11, per 1Password Windows downloads | | ---------------- | --------------------------------------------------------- | | RAM | The desktop app is a few hundred MB class | ## Resource profile - **CPU demand**: Low except unlock and Watchtower refresh **Network demand**: Sync and Watchtower ## Installed processes These executables belong to this product when it is installed. | 1Password.exe | Desktop app | | ------------- | ----------- | ## Startup components 1Password.exe can sit in the tray and start at logon. That is a 1Password setting. ## File locations | Typical install | C:\Users\\\\AppData\Local\1Password\\ | | --------------- | ------------------------------------------ | ## File formats 1Password account vault, CSV import, 1PUX export ## Common problems ### People expect a Bitwarden-style self-host field 1Password does not offer that. The account is on 1Password.com. ### Watchtower empty after a new import Watchtower needs items in the vault and a signed-in account. It is not Windows SmartScreen. ## Getting unstuck ### Install from 1password.com/downloads/windows A Microsoft Store listing can exist. A random "1Password full" exe host is not AgileBits. ### Unlock 1Password.exe before blaming the browser The extension talks to the desktop app. A locked vault will not fill. ### Use Watchtower inside 1Password, not a third-party breach tool Watchtower is the vendor feature. It is not Have I Been Pwned's website by itself, though it uses similar signals. ## Alternatives Bitwarden if you want open source and optional self-host. Dashlane if you already pay that vendor. KeePass if you want only a local file. ## Official help and downloads Start with the vendor. Random exe sites are not a support channel. | Download | [1password.com/downloads/windows/ ](https://1password.com/downloads/windows/)Official installer or vendor page | | ------------- | ------------------------------------------------------------------------------------------------------------------------------------------ | | Help | [support.1password.com/ ](https://support.1password.com/)Vendor support | | Official site | [1password.com/ ](https://1password.com/)Start here, not a random exe host | | Watchtower | [support.1password.com/watchtower/ ](https://support.1password.com/watchtower/)Breach and reuse alerts. A 1Password feature, not Bitwarden | ## Related hardware The desktop app is light. Unlock and Watchtower checks need a network. ## Technical details Technical details Vendor version numbers change. This article does not pin a build. ## Related These entities connect to this article. Type is shown on every link. [Dashlane: Application](https://feex.it/wiki/software/dashlane)[Bitwarden: Application](https://feex.it/wiki/software/bitwarden)[How to read Task Manager: Guide](https://feex.it/wiki/software/system/how-to-read-task-manager) ## Sources and verification Reviewed by Feex editorial. Last verified August 2026 Status: Feex Reviewed. [How we research](https://feex.it/wiki/research). - [1Password official site ](https://1password.com/)· Vendor product page - [1Password help ](https://support.1password.com/)· Vendor support - [Foxhole process map ](https://foxhole.feex.it/)· First-party samples on Windows PCs. Not a lab benchmark. ## Was this article useful? A yes or no is enough. Pick a reason if you want, or add a short note. Quick facts The short identity of this page. Specs, sources, and the full story stay in the article. - **Developer**: AgileBits **Category**: Password manager **Process**: 1Password.exe **License**: Paid subscription. AgileBits hosts the vault **First released**: 2006 **Official site**: [1password.com](https://1password.com/) **Mapped by Feex**: Seen on Windows PCs in Foxhole Feex Reviewed: Last verified August 2026 --- Source: [Canonical Feex Wiki page](https://feex.it/wiki/software/onepassword/) [Developer guide](https://feex.it/wiki/developers/) | [API policy](https://feex.it/developers/api-policy/) | [Agent guidance](https://feex.it/wiki/llms.txt)