If you're an active internet user with accounts on dozens of websites, chances are you already have dozens of user IDs and passwords to remember. An identity system like OpenID may eventually solve all your problems, but until that time you can make use of various tools to save your passwords and automatically fill out forms.
See also: 25+ Ways to Manage Your Online Identity
Password Managers (Online)
Agatra - Online password manager that helps you log in to websites automatically. You can click on the Agatra dashboard where your website links will be displayed.
Clipperz - Online and offline password manager. You can use its one-click login feature to access your websites. It also has a stripped down edition designed for the Firefox sidebar and the Opera panel.
Handy Password - Firefox and IE addon that functions as a password manager, form filler, and a bookmark manager. You can save your data locally or on your email server.
Passlet - A simple online password manager that provides you with your Passlet page where you can store your passwords. Clicking on a particular entry pops up a window that displays the information that you stored for that particular entry.
PassPack - This is an online and offline password generator and manager with many features like 1-click logins, Anti-Phishing, Rapid Sign In, disposable logins, import and export, etc. My personal favorite.
Password Safe - Password manager that has a mini web browser pop up to help you log in to sites. It also has a desktop application for Mac and Windows.
Shibbo - Online password manager that you can use to manage passwords and private information anonymously.
SpyShakers - Online password manager with a drag and drop feature. Password Managers (Desktop applications)
4uOnly - This tool stores your password, which you can access without having you to enter a master password. It uses your windows login ID as your account password.
Absolute Privacy - Stores your contacts, calendar, task list, diary, memos, passwords, and financial information.
Access Manager - Drag and drop passwords from user list to websites.
Agile Password Manager - A small freeware utility to store all your passwords. Offers five sections where you can store your passwords separately - personal, business, web, financial, etc.
Any Password - Store your password in a tree-type structure. Also has an import-export facility.
Comodo -i-Vault - Password generator and manager with a drag and drop interface.
Echo Password Manager - Automatically remembers and retrieves your online passwords and login information. Also has password generator, validator, and multi-language support.
Era Password Manager - Install the Era Password Manager on your USB drive and carry your passwords securely.
Halsa - A simple password manager that comes in six languages - EN, DE, PL, CZ, ES and HU.
JK Password Manager - Stores your passwords on a encrypted and master password protected file.
Keepass Password Safe - Open source application to store all your passwords in a encrypted form.
Keychain - Tracks and stores your passwords in a master-password protected file.
KeyWallet - Free tool to store your passwords. You can drag and drop your passwords to their respective websites forms in a browser.
Master Password - This application has a small floating toolbar that will track, add and manage entries.
nPassword - With this cool application, you can log in to any website or program with its QuickPassword popup feature from where you can drag your login information.
PassLocker - access your websites, email, standalone applications, instant messengers etc.
Passweerd - A USB key portable password manager application where you can store passwords by categories.
Password Assistant - A nifty password generator and analyzer tool. You can make the password output pronounceable so that it is easy to remember.
Password Assistant 2.0 - A Java based application to store all your passwords on your PC.
Password Gorilla -Stores and encrypts your passwords. You can copy the passwords in an encrypted form into your browser.
Password Manager for Opera - Allows you to store non-website related information like application logins, cell phone PINs, etc. using the built-in wand in your Opera browser.
Password Corral - This application stores your passwords in an encrypted form. You can launch browsers from the application itself.
Password Guardian - A simple password manager with import-export facility.
Password Keeper - Stores your passwords in an encrypted form.
Password Keychain - A small password generator and manager. You can use this to launch sites by double clicking the entries in the application.
Password Keyper - A tool that you can use to store and encrypt your passwords. You can launch the urls from the application itself.
Password Organiser - A small tool to store your passwords in one place.
Password Picker - Generate and store your passwords in a secure way.
Password Prime - This tool saves all your passwords and the locations where they are used.
Password Scrambler - An IE addon that provides scrambled passwords for all your web log-ins. You just have to remember the master password and let Password Scrambler do the login automatically.
Remember Me - This tool helps you create multiple password protected profiles and save your password in different categories in an encrypted form.
RN Password Manager 4.0 - Store all your passwords and website urls in one file that can password protected. You can launch your browser from the application or use the application's default web browser.
Scarabay - Password manager application from where you can drag and drop your login information.
SimplePasswords - A lightweight password manager that you can carry around on your USB stick. You can store notes with your passwords as well.
Universal Password Manager - Store your passwords at a password-protected web address. Runs on Windows, Mac OS X & Linux.
YGS Password Manager - Enables you to store all your passwords in the application. You can open the web address from the application itself and also copy the passwords into your clipboard.
Zaid - A simple password manager that can be run from your USB stick.
Form fillers / Browser Add-ons
Billeo Free Password Manager Plus - Browser toolbar that will automatically pre-fill your login information, autofill your contact details on shopping sites, and also serves as an online bill pay assistant.
Biz Form Bar - Browser toolbar with password manager and form filler features with unlimited passwords and profiles.
Google Toolbar - The Autofill feature in the Google toolbar for Internet Explorer and Firefox helps fill web forms with a click.
Easy login - This is a toolbar button for Internet Explorer that you can use to log into websites with a single mouse click.
Form Auto Filler - Helps automate your form filling in Internet Explorer with a few keyboard buttons.
Formfiller - This is a small Firefox extension to help fill forms. Information from the Formfiller window can be pasted into web forms.
FormSaver - Firefox addon that will save the information you provided while filling an online form and provide the data the next time you fill a similar form.
iMacros for Firefox - Firefox addon that can act as a password manager and form filler, automate the download and upload of pages, and capture web page response time for web developers.
iNetFormFiller - Stores your private data and reproduces order of clicks on web-links when you want to fill an online form.
inFormEnter - A nice Firefox extension that puts image markers beside input fields on websites which can be selected for auto filling forms.
Login Manager - Firefox addon to help you login to the same web service using two different IDs in the same browser session.
Personal Web Helper - A password generator, manager and form filler with an inbuilt browser history cleaner.
Roboform - Browser toolbar that helps automate online form filling and logins. You can only store ten passwords in its free edition though.
Roboform2go - Version of Roboform that you can install on a USB key. It leaves no trace of the application when you unplug the USB key. Only ten passwords on the free version.
Secure Login - Firefox addon for automating web logins. When you are on a particular webpage and you hover above the login button on the toolbar, it displays a series of available login IDs and passwords.
Signupshield Passwords - Firefox addon that has a 1-Click Password manager, form filler, spam control and anti-phishing toolbar.
Shopwiki Form Filler Assistant - Firefox addon that will help you fill forms at various online shopping sites.
Sxipper - Firefox addon that uses the Firefox password manager to track your passwords and form filling information and provides you login options whenever you return to that particular site.
Miscellaneous password tools
Change Forgotten Passwords - Recover your forgotten passwords from Internet Explorer, IMs, Outlook, shared folders, and many more.
Master Password Timeout - This Firefox addon locks the master security device after a specified amount of time. Password Decrypter - Decrypts hidden asterisk passwords into plain-text.
Password Dynamo - A nifty password generator. Requires .NET Framework 2.0+ to work. Password Exporter - Imports and exports passwords from Firefox, Thunderbird, Flock, and Songbird.
Password Finder - This Firefox addon adds the search function to the password manager.
Password Generator - You can generate up to 1000 passwords with this tool and save them on your clipboard.
PDF Filler - Online tool to help you fill any PDF form on-line in 3 steps.
Serial Key Manager - Saves your software serials in the Windows Registry.