Here you can find some tools which might be handy in day-to-day activities.
BitCoin
MultiBit – MultiBit is a secure, lightweight, international Bitcoin wallet for Windows, MacOS and Linux.
Development
Aptana Studio – Powerful Open Source web development IDE for HTML5, CSS3, JavaScript, Ruby, Rails, PHP and Python. Based on Eclipse.
Atom – A hackable text editor for the 21st Century.
Bootstrap – Sleek, intuitive, and powerful front-end framework for faster and easier web development.
CodeLobster – Free portable IDE for PHP/HTML/CSS/JavaScript development
ERMaster – ERMaster is GUI editor for ER diagram.
FlashDevelop – Open Source platform for Flex/Action Script development
Heidi SQL – lightweight, Windows based application for managing MySQL and Microsoft SQL databases.
LINQPad – The Ultimate Scratchpad for C#, F# and VB
Pencil Project – An open-source GUI prototyping tool that’s available for ALL platforms.
Pingendo – The simplest app to prototype with Bootstrap 3. For free.
PostgreSQL Database Modeler – Great visual tool for PostgreSQL database design and modelling.
PowerShell Tools for Visual Studio 2013 – Great extension for Visual Studio 2013. Adds language support for PowerShell in Visual Studio 2013.
StyleCop – StyleCop analyzes C# source code to enforce a set of style and consistency rules. It can be run from inside of Visual Studio or integrated into an MSBuild project.
Sublime Text – Great editor for coders. Amazing performance, lot of extensions, sophisticated features.
Syncfusion Metro Studio 2 – Tool for creating thousands of vector-based icons and images ideal for Windows 8.
Tables Generator – If you need visual table designer which generates code for LaTeX, MediaWiki, HTML, Text, MarkDown then this is perfect tool available online.
Visual Studio Code – Code Editing. Redefined. Build and debug modern web and cloud applications. VS Code is free and available on your favorite platform – Linux, Mac OSX, and Windows.
Scripting
PelNet – Nice script to test email flow with telnet and report results in excel spreadsheet.
PelNet v.2.0 – Nice script to test email flow with telnet and report results in excel spreadsheet. Support to StartTLS added in this version.
PowerGUI – For all PowerShell fans.
PowerShell Plus Professional – Free tool to learn and master PowerShell fast.
VbsEdit – The award-winning VBScript editor that dramatically reduces the time you spend writing.
Network
NetBrain Personal Edition – Amazing tool for network troubleshooting and discovery. Now available for free up to 12 devices!
freeSSHd – a free implementation of an SSH server. It provides strong encryption and authentication over insecure networks like Internet. Users can open remote console or even access their remote files thanks to buit-in SFTP server.
Get Console – The Best Terminal App for iPad Serial connectivity. Has also ability to share session via web. It is really cool and functional for configuring Cisco devices much more to have iPad with console cable than carrying laptop around; so, if you have iPad and you are Network Engineer, it’s a must have tool.
NMap – Nmap (“Network Mapper”) is a free and open source (license) utility for network discovery and security auditing. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime.
SNMPB – Useful SNMP MIB browser which supports SNMPv1, v2 and v3
TFTPD32 – TFTP Server and Client with DHCP, DNS and Syslog Server also built-in.
Pass7 Decrypt – Web tool to decrypt Cisco Type 7 passwords (wireless, radius, user passwords, etc.)
PCF enc_groupPwd Decrypt – Web tool to decrypt group password from Cisco VPN profiles (PCF file)
S3 Browser – freeware Windows client for Amazon S3 and Amazon CloudFront.
Submarine Network Map – always good to know how world is connected.
Wireshark – Wireshark is the world’s foremost network protocol analyzer. It lets you see what’s happening on your network at a microscopic level.
System
Disk2VHD – Disk2vhd is a utility that creates VHD versions of physical disks.
Kerberos Authentication Tester – Little tool for Kerboros testing
LDAP Admin – neat tool to access any LDAP repository (AD, ADLDS, OpenLDAP)
Macrium Reflect Free Edition – Great disk imaging and cloning software. Free for personal use!
opsi – open source Client Management System for Windows clients and is based on Linux servers
Rufus – Rufus is a utility that helps format and create bootable USB flash drives, such as USB keys/pendrives, memory sticks, etc.
SD Formatter 4.0 for Windows – Handy tool to format SD cards
Security
Apple Activation Lock – check statud of your iPhone or iPad , if is assigned to someones account or stolen.
IIS Crypto – IIS Crypto is a free tool that gives administrators the ability to enable or disable protocols, ciphers, hashes and key exchange algorithms on Windows Server 2003, 2008 and 2012. It also lets you reorder SSL/TLS cipher suites offered by IIS, implement best practices with a single click and test your website.
Snort – Snort is an open source network intrusion prevention system, capable of performing real-time traffic analysis and packet logging on IP networks. It can perform protocol analysis, content searching/matching, and can be used to detect a variety of attacks and probes, such as buffer overflows, stealth port scans, CGI attacks, SMB probes, OS fingerprinting attempts, and much more.
Mobile
Lumia Software Recovery Tool – if you have damaged OS on Lumia phone, that’s the tool which can fix it.
Windows Phone Recovery Tool – if you have bricked Lumia phone, this tool will definitely help to recover.
WordPress
Page Builder Plugin – Site Origin Page Builder. The Free Responsive WordPress Page Builder.
Misc
Calibre – e-book management. Really helps to organize all e-books.
Free Download Manager – download accelerator and manager, which I’m using for years. It’s open-source and absolutely free. Really great tool.
Free Image Converter – Handy and useful image conversion and resize tool.
Notepad2 – this little app is Notepad-like text editor with syntax highlighting, line numbers and many other features. It is also portable, so can be run without installation. Best Notepad replacement I’ve seen. I use it as default editor in Total Commander file manager.
Notepad++ – it’s very powerful source code editor which allows to work on multiple files same time. It is quite advanced tool for text file editing.
Total Commander – absolutely the best file manager in Norton Commander style (for those who remember) It is must have tool for efficient file management.
Gaming
Skyrim Script Extender (SKSE) – The Skyrim Script Extender, or SKSE for short, is a modder’s resource that expands the scripting capabilities of Skyrim. It does so without modifying the executable files on disk, so there are no permanent side effects.