Amnesia is a very simple and straightfoward CPU/Memory monitor. The memory monitor now includes inactive memory in its calculation of free memory.

Shows the state of Apple Remote Desktop, whether disabled, enabled, or connected- even if the Administrator asked for permission to monitor/control (that's what ARD's menu extra doesn't).

Menu Extra that displays CPU(s)load in your menu bar. The load averages are updated every second. Simple as that!

The original DAFT dockapp, Coconut is an elegant and effective bandwidth monitoring application. Features include automatic detection and monitoring of active network devices.

Keeps you aware of your current battery health. It shows you live information about your battery such as how often it was charged and how is the current maximum capacity in relation to the original capacity your battery had when it left the factory.

CoolBook is a tool for the MacBook, MacBook Air and MacBook Pro computers. It lets you monitor the frequency, voltage and temperature of the CoreDuo / Core2Duo CPU.

Menubar application supervises the temperature of your iMac 2006, MacMini 2006, MacBook Pro and MacBook.

Allows you to watch CPU load in menu bar.

Utility for listening in on TCP conversations on the network your computer is attached to. It can also open up tcpdump / Ethereal capture files for analysis.

Be notified when files, folders or their contents are modified. File Monitor also will monitor the content of particular folders, dropboxes and the modification of particular files.

Utility has one purpose, to be a simple, easy-to-use file system monitor. FileMon allows you to record all the files accessed by processes during a certain period of time.

Simple application allows you to monitor a folder for changes, whether that be if the modification date has changed or if items have been added or removed. When changes occur, you can specify how you are notified of changes.

Simple menubar application watches chosen web pages for changes and alerts you if it notices any. You can make Frogeye check for changes on a web page only strictly between occurrences of specified phrases.

User-friendly file system activity monitor for OS X 10.4. FS Spy allows you to log all file system activities from all applications, Import/Export of the events log with a simple Drag & Drop, create your own matching rules to filter specific events and more.

Application to read out all accessible hardware sensors in Macintosh computers. Currently more than 100 different Macintosh hardware sensors and more than 200 hard drive temperature sensors are supported.

Add-on to Hardware Monitor, allows you to use a hardware monitoring service on a remote Macintosh system. Other computers can contact this system via network to receive readings from all available hardware sensors.

iBatt is a complete battery analyzer for Mac laptops. Track your battery in real-time, or view historical logs. See how your battery compares with other laptops of your type from around the world.

Remote viewer and configuration tool for network monitoring that works with InterMapper. It will allow you to see the status of your routers, switches, servers, and other networking equipment.

Utility for network monitoring and alerting uses SNMP to provide utilization statistics to help you optimize performance, as well displaying traffic, error, and outage information so you can be aware of trouble spots.

iStat Menus is an advanced Mac system monitor, covering an enormous range of stats. iStat Menus features a Retina display friendly design, per process network bandwidth monitoring, history graphs across the board, calendar events and much, much more.

Tiny application which shows the CPU load in the Dock. LoadInDock adopts the module system to provide a great variety of appearances of graph of the CPU load in the Dock.

LogMaster log file viewer for system, Apache, CUPS, SAMBA, CrashReporter, and user defined logs. Server status monitor with notification option.

Macs Fan Control allows you to monitor and control almost any aspect of your computer's fans, with support for controlling fan speed, temperature sensors pane, menu-bar icon, and autostart with system option.

App helps you monitor system status quickly. Download and upload speed displays in the float window, once mouse touched, memory, disk, CPU, sensor and battery information will be popped-up. Users can drag each item's position at will.

Memory Monitor is a little Mac OS X application that displays the memory usage in its Dock icon (and optionally in a floating window), like CPU Monitor displays the CPU usage.

Set of CPU, memory, disk, and network monitoring tools for Mac OS X. The MenuMeters monitors are true SystemUIServer plugins (also known as Menu Extras). This means they can be reordered using command-drag and remember their positions in the menubar across logins and restarts.

MenuTemperature is a small utility for continuously measuring your computer’s CPU temperature.

Visualize your network traffic, log network activity, create history reports and calculate traffic over time. Net Monitor graphs network traffic, generates and exports HTML traffic reports, calculates traffic between dates and monitors remote computers.

Monitors local and remote computers network interfaces on a per ip/port communication. Net Monitor Sidekick supports IPv6, identifies IP Geo location, calculates statistics for each networking stream, and monitors remote computers.

NetCheck can identify and solve problems on your network before your users do. NetCheck provides an array of network monitoring, email alerts, logging, and reporting features.

Graphically monitor the speed of your internet connection. NetSpeedometer shows a graphic of your traffic speeds to help you keep track of data as it goes in and out of your machine.

NetStatInDock is a little application which shows the network statistics in the Dock. NetStatInDock adopts the module system to provide a great variety of appearances of graph of the network statistics in the Dock.

ntop is a network traffic probe that shows the network usage, similar to what the popular top Unix command does. ntop users can use a a web browser (e.g. netscape) to navigate through ntop (that acts as a web server) traffic information and get a dump of the network status.

Provides a user-friendly GUI for tcpdump, a command-line network monitoring tool included in Mac OS X. PacketStream offers a simple way to configure and use the Mac's network monitoring tools.

Utility to monitor and manipulate all running processes. You can watch how much CPU time each process uses, adjust processes’ priorities, and monitor process information.

Tool to monitor servers and services. If any of your favorite servers is down, Pingeling will notify you (or others), either by email or by sending a message to your mobile phone. Pingeling will also show you the connection speed of those servers.

Network connection monitor for Mac OS X Lion. It monitors both incoming and outgoing connections. When an app makes a network connection, you see it instantly on your screen. There's no delay and you don't have to use a separate recording mode.

ProteMac Meter is a network traffic logger. It monitors and records all Internet and network activity on your Mac computers. ProteMac Meter worked out as a traffic monitoring tool is essential for maintaining a safe network and diagnosing network and Internet connections and speeds.

RAID Alert is a unique application that continuously monitors attached RAID systems based on the free (Mac OS X built-in) RAID software. It will inform you about any RAID systems' status changes (esp. failures) via email, a notification dialog and an alert sound.

RAID Monitor will automatically check the status of your RAID. If the software detects a problem with the RAID set - it will email you to let you know that there is an issue you need to resolve.

With Server Siren, server downtime is a thing of the past. It runs as a menu bar item, so a quick glance is all it takes to see that everything is A-OK. If a server goes down, it alerts you immediately so you can fix the problem and get your site up and running again.

Monitors websites and servers for changes or failures. It checks servers for changes or failures, and notifies you via e-mail, sound, speech, Twitter, or other means. You can use it to track updated sites, and to alert you when an important server goes down or recovers.

Monitors and profiles your Mac's energy use, and can help you identify power management problems. With Sleep Monitor you can easily build an energy profile spanning days, weeks, and months.

SlimBatteryMonitor is a replacement power gauge for Apple's Mac OS X that tracks both laptop batteries and many UPS batteries. Multiple-battery systems (e.g. older powerbooks) are supported as well.

Sonar is a security tool that provides real-time reporting of file changes on your hard drive. It is a useful diagnostic tool and an invaluable aid for anyone who is serious about computer security.

OS X Kernel extension and Preference Panel application designed for real-time CPU frequency, throttling and monitoring and on-the-fly adjustment of the CPU performance level on Intel Core Duo models.

StatusMonitors provides a desktop display of the status of your computer system as well as the status of other computers on the local network. The client monitors volume/folder/file usage, memory usage, network load and processor usage and more.

Monitor your internet connection. See every connection your local network, including connections from other computers. Discover what's making your connection slow, see how fast your movie trailer is downloading, or check out how much bandwidth your games require.

Get Summary for web server log analysis and traffic monitoring. With over 200 reports, many of them unique, Summary gives you the results you want. Summary runs on all of the popular systems including Windows, Macintosh and Linux x86.

Application for the menu bar informs you about the activity of your computer. Retrieve up-to-date technical data any time, like process load, main memory consumption, storage space, disk activity, communication on network interfaces, etc.

Application to read out all available temperature sensors in Macintosh computers. Temperature Monitor can visualize the history graphs of the readings, display measured values in a large variety of fashions, or announce readings by speech output. It can also store and export values.

Monitors the temperature of your PowerBook / iBook. Temperox monitors the temperature of CPU Bottomside, CPU Intrepid Bottomside, Power Supply Bottomside and the Battery. Additionally Temperox monitors the speed of rear left fan, rear right fan and the CPU Core Voltage.

ThermographX monitors the various temperature sensors inside your Mac. ThermographX records maximum and minimum temperatures, Shows temperature records over time, shows individual sensor temperatures on models that have them and more.

ThermoInDock displays graphs of temperatures obtained from the internal thermal sensors on your Mac in the Dock. ThermoInDock adopts the module system to provide a great variety of appearances of graph of the CPU load in the Dock.

Who is connected? is a small unobtrusive menu bar app which monitors the status of Apple File Sharing (AFP) and Remote Login (SSH) for Mac OS X. Who is connected? shows both the status of AFP & SSH and if users are connected to your Mac.

Monitor and troubleshoot your Wi-Fi connection. WiFi Signal provides easy access to your Wi-Fi connection details such as SSID, BSSID, channel, transmit rate, signal (RSSI), noise and Signal-to-Noise Ratio (SNR) to quickly identify possible causes for low signal quality and poor performance.

XMonitor is a real-time monitoring application. XMonitor allows you to easily monitor your disk, cpu, ram and network usage, PPP status, IP address, Email, and more. XMonitor can also monitor the status of up to 25 remote servers via http or ICMP ping requests.

Open source system monitor for Mac OS X. XRG allows you to monitor CPU activity, memory usage, battery status, machine temperature, network activity, disk I/O, current weather, and stock market data.

Designed to help you monitor the behavior and health of your Mac in a simple and straightforward manner. This is done in real time. No more needing to go ‘beneath the hood’ to find out all those technical details that could be affecting your system. We’ve done all the work for you!