MacAttorney, the FREE
                  Newsletter for Macintosh Using Attorneys


Free Macintosh Software !


By Randy B. Singer

Copyright © Randy B. Singer, 2018-2023. All worldwide rights reserved.
Permission is hereby given to link to this site, but no other use is permitted without express written permission.

Note: Any discrepancies between the prices listed on this Web site and the price on the developer's site are irrelevant.  
The price you should expect to pay is the price asked by the developer.

210 completely free products now listed!

One of the things that makes the Macintosh a great value is the wide array of excellent software applications that come with it.  Apple’s included applications are surprisingly competent.  But they don’t always provide everything, or exactly what one could want.  And there are certain types of applications that simply don’t come with a new Mac. There are, of course, a huge number of commercial applications to do whatever you want with your Macintosh, but sometimes folks want something that is either free, or which is extremely reasonably priced.  Fortunately, there are a large assortment of free applications for the Macintosh that are very much worth having, or which are at least worth checking out.   I’ve tried to list as many such programs here as I know about, emphasizing software that I feel is either invaluable or highly desirable.   Hopefully even long-time Mac users will find something new and useful in this list.

Note: This Web site is not meant to be a comprehensive listing of all of the free software for the Macintosh. The applications listed here are limited to those that are easy to install, which work really well, and which are either easy to use or which are easy to learn to use.  In other words, all of the software on this site has been vetted to make sure that it is user-friendly for your average Macintosh user, and of the same quality as commercial software.

Important:  If you are running a recent version of the Macintosh operating system, and you download software from somewhere other than Apple’s Mac App Store, when you go to launch that software you will get a dialog that says that you can’t open the application because it’s “from an unidentified developer.”  This is simply Apple’s security measure telling you to be careful where you get your software from.  This alert does not mean that the application is dangerous or that it won’t run on your Macintosh. Software that you get directly from a legitimate developer is just about always perfectly safe.  You can open the application by right-clicking (or Control-clicking) on the application’s icon, and then choosing Open; you will still get a warning dialog, but you can now choose to Open the application anyway, even if it comes from an unidentified developer.  From this point on you can launch the application normally and there will be no warning dialog box.  However, this doesn't work if the application is located anywhere but in the Applications folder.  See:
http://osxdaily.com/2012/07/27/app-cant-be-opened-because-it-is-from-an-unidentified-developer/

Why is this software free?





ActivePresenter free edition (free)
https://atomisystems.com/activepresenter/free-edition/?AFFILIATE=6732&__c=1
(Screen recorder and video editor. Designed primarily to create training courses.)



AdGuard for Safari (free)
https://adguard.com/en/adguard-safari/overview.html
(Ad blocking extension for Safari.)



Adobe Express  (free; commercial version adds more features)
https://www.adobe.com/express/?msockid=3a77bcdb92846eb222f7a83993fd6f35
(AI content creation app for making stunning social posts, images, videos, flyers, and more.)



Aiko (free)
https://sindresorhus.com/aiko
(AI-powered audio transcription.)



AltTab (free)
https://alt-tab-macos.netlify.app/
(Really cool window switcher using the keyboard.)



Amazing AI (free)
https://sindresorhus.com/amazing-ai
(Describe an image using text, and your computer will create such an image!!)
(NOTE: Requires a recent Macintosh with an "Apple Silicon" processor.)



Amethyst (free)
https://ianyh.com/amethyst/
(Simple window manager.)



AmorphousDiskMark (free)
https://katsurashareware.com/amorphousdiskmark/
(Measures the read/write performance of your hard drive.)



AppCleaner (free)
https://freemacsoft.net/appcleaner/
(Macs don’t really need uninstallers, but for those who really want one, AppCleaner allows you to quickly, easily and thoroughly uninstall unwanted apps.)



Arc browser (free)
https://arc.net
Review:
https://tidbits.com/2023/05/01/arc-will-change-the-way-you-work-on-the-web/
(New paradigm Web browser using AI.)



Audacity (free)
https://www.audacityteam.org
(Multi-track audio editor and recorder.)



Aural (free)
https://www.mactools.pro/Aural
(Audio player. Supports a wide range of audio formats, including FLAC, MP3, and AAC, ensuring compatibility with most music libraries.)




BBEdit (free/$50)
https://www.barebones.com/products/bbedit/
List of differences between free and commercial version:
https://www.barebones.com/products/bbedit/comparison.html
(The premier text editor for the Macintosh.  )



BeeBeep (free)
https://www.beebeep.net
(Peer to peer instant encrypted office messaging. )



BetterDisplay/Pro (free/$15)  (was: BetterDummy)
https://github.com/waydabber/BetterDummy
(Allows custom resolutions with external monitors.  Some monitors don't look quite right using Apple's default resolutions.  This utility gives you more resolution choices so that hopefully you can find the perfect one. Now compatible with Apple Silicon.)



BGBlitz (free version)
https://www.bgblitz.com/
(A supremely wonderful backgammon game.  Addictive.)



Big Red Clock
(free)
http://www.bigredclock.com
(Big red numbers desktop clock with countdown timer and stopwatch features.



Blender (free)
https://www.blender.org/download/
(Very powerful 3D graphics program.)



BLEUnlock (free)
https://github.com/ts1/BLEUnlock
(A small menu bar utility that locks and unlocks your Mac by proximity of your iPhone, Apple Watch, or any other Bluetooth Low Energy device.)



Blip (free for personal use)
https://blip.net/
(Fast file transfer directly between any two your devices.
Requires a minimum of macOS 12.1 Monterey, iOS/iPadOS 15, or Android 9.
The Windows version is still in development.)
Review:
https://tidbits.com/2024/09/06/appbits-use-blip-to-send-large-files-directly/



BlueStacks (free)
https://www.bluestacks.com/features.html
(Lets you run Android apps on your Mac!)



Brave Web browser (free)
https://www.brave.com/
(Apple provides it’s own Web browser with every Macintosh; Safari.  Why would you want a different Web browser?  Because Brave doesn't spy on you like many other browsers do.  It's FAST, it blocks ads without the need for add-ons, it blocks trackers, and it has excellent compatibility with just about every Web site.  Brave simply provides a safer, much more enjoyable browsing experience than other browsers.)
More info:
https://en.wikipedia.org/wiki/Brave_(web_browser)

https://restoreprivacy.com/browser/secure/



Calibre (free)
https://calibre-ebook.com/
(E-book collection manager and converter.  Read e-books from other Platforms on your Macintosh. Substitute for iBooks.)



Capital Asset Inventory Tracker (free)
http://4lightdata.com
(Track the location and value of individual capital or fixed asset items.)



CaseViewer (Donation Requested.)
https://www.caseviewer.app/
(Legal case law finder. You can retrieve cases from a variety of publicly available sources, and have them formatted for easy study.)



ClipGrab  (free)
https://clipgrab.org
(ClipGrab is a free downloader and converter for YouTube, Vimeo, Facebook and many other Web-based audio and video sites.  It converts downloaded files to MPEG4, MP3 or other common formats in one easy step.)



ClipTools (free)
https://macmost.com/cliptools
https://apps.apple.com/us/app/cliptools/id1619348240?mt=12
(Access things that you have previously cut and pasted. You can save clips, use powerful Smart Clips, paste the date or time in any format you wish, and/or paste boilerplate that you create.)



Clipy (free)
https://clipy-app.com
(An advanced clipboard manager that will allow you to copy and store as many things as you like, and then export them in any order that you like.  Invaluable for doing research and writing.)  
(NOTE: Don't let the Japanese on this product's Web page scare you.  This app is entirely in English.)




Clix (free)
https://rixstep.com/4/0/clix/
(Learn to use the Macintosh's powerful UNIX command line, with training wheels to keep you out of trouble!)



Clocker (free)
https://abhishekbanthia.com/clocker/
https://itunes.apple.com/us/app/clocker-menubar-world-clock/id1056643111?ls=1&mt=12
(World clock integrated right into your menu bar, allowing you to quickly check up on your colleagues/friends/family in different time zones.  Includes reminders feature.)



CloudClip Manager (free)
https://thinkbitz.com/cloudclip/
https://apps.apple.com/us/app/cloudclip-manager/id563362017?mt=12
(Sync your clipboard between your Macintosh and your iPad or iPhone. It's the easiest way to transfer phone numbers, websites, addresses, and more.)




Clyde (free, commercial version has more features)
https://theclyde.app
direct download of free version:  https://theclyde.app/s/Clyde10.dmg
(Sets off an alarm on your MacBook if somebody attempts to steal it.)




Coconut Battery
  (free)

https://www.coconut-flavour.com/coconutbattery/
(Tells you about the health of your Macbook’s battery.  When your laptop's battery gets down to about 80% of its original capacity, it’s time to think about getting a new battery.)



Command X (free)
https://sindresorhus.com/command-x
(Move files via cut and paste in the Finder.)



CopyClip (free)
https://apps.apple.com/us/app/copyclip-clipboard-history/id595191960?mt=12
(Simple and efficient clipboard manager.)



Copy
Less (free, additional features available for a fee)
https://copyless.net/
(Clipboard manager. Can store up to 1000 recent clippings.)



CoreBreach (free)
https://www.corecode.io/corebreach/CoreBreach/CoreBreach.html
(Futuristic anti-gravity racing game.)



Cyberduck (free)
https://cyberduck.io/download/
(FTP browser.  “File Transfer Protocol” is how you move files to a server.  More importantly, it’s how you upload HTML files to your ISP’s server to put them on the Web.  There are a number of FTP programs for the Mac, but this one is free, easy to use, and fairly full featured.)



DarkModeBuddy (name your price)
https://insidegui.gumroad.com/l/darkmodebuddy
(Automatically switch your Mac between light and dark modes based on your Mac's ambient light sensor.)




darktable (free)
https://www.darktable.org/
(A clone of Adobe Lightroom.  A virtual light-table and darkroom for photographers. It manages your digital negatives in a database, and enables you to develop raw images and enhance them.)




Davinci Resolve
(free; commercial "Studio" version has more features)
https://www.blackmagicdesign.com/products/davinciresolve/
https://apps.apple.com/us/app/davinci-resolve/id571213070?mt=12
(Professional video editing, color correction, audio post and visual effects!)



Desktop Icon Manager - "DIM"
(free)
http://www.parker9.com/desktopIconManager2.0.html
(Remembers and restores on command the placement of your desktop's icons.  It’s way too easy to accidentally set the “View” for your desktop to something that re-arranges everything with no way to get back the organization you painstakingly set up manually.  With one click, DIM puts your desktop icons right back where they were when you last saved their arrangement.  Program can also instantly hide all of your desktop icons.)



DetectX
(free/$10 to register)
https://sqwarq.wordpress.com
(Looks for and eliminates all known adware.  Will also remove some malware, but this isn’t a comprehensive solution for dealing with malware....fortunately you don't need a product to look for the latter because the Mac has built-in anti-malware software.)



DiffusionBee (free)
https://diffusionbee.com
(A set of amazing AI tools for graphic artists!)




draw.io Desktop (free)
https://www.diagrams.net
https://github.com/jgraph/drawio-desktop/releases/tag/v21.2.1
(Diagramming tool. For creating floor-plans, orginization charts, process flows, mind-maps, circuit diagrams, story maps and timelines.)




DupeGuru
(free)
https://dupeguru.voltaicideas.net/
(Finds duplicate files by either name or content.  Also works with music and photos.)



EasyCardFile (free)
http://4lightdata.com/pdfs/EasyCardFile.pdf
http://4lightdata.com/zips/EasyCardFile.zip

(Simple flat file database for saving text or pictures.)



EasyFind (free)
https://www.devontechnologies.com/apps/freeware
(File search app.  Spotlight doesn't look everywhere on your hard drive for things. Spotlight is designed for speed and to keep you away from things that might get you in trouble.  EasyFind looks everywhere on your Mac.  It can even look for invisible files.)




Easy Record and Trim (free)
https://ithinkapps.com/
https://apps.apple.com/us/app/mp3trueedit/id731468939
(Allows you to record MP3 files and AAC audio files directly and then trim the recordings without any quality loss.)



Easy Streaming (free)
https://apps.apple.com/us/app/easy-streaming/id6449092750?mt=12
(Easy Streaming helps you to conveniently browse multiple streaming and video sites in one application, separate from your web browser.)




Economix (free)
http://y.callaud.free.fr/economix.html
(Personal finance manager.)



EdenMath (free)
http://www.edenwaith.com/products/edenmath/
(Scientific calculator which does standard arithmetic, probability, and trigonometric functions.)



eM Client (free/$50)
https://www.emclient.com/

(Extremely full featured e-mail client. 
Includes calendars, tasks, contacts, notes, and chat features. Commercial Pro version adds features that the free version lacks.)



Encrypto (free)
https://macpaw.com/encrypto
(Instantly encrypt and password protect your files or folders.  Decrypt them with a double-click and enter the password.  Not even the FBI can break this encryption.  There is also a free version of this product for Windows, so encrypted files can be shared across platforms!)



EnvelopeMagic
(free)

https://www.envelopemagic.com
https://apps.apple.com/us/app/envelopemagic/id1516167860?mt=12
(App for printing envelopes. Requires macOS 11.5 or later.)



eqMac (free. Commercial Pro version has more features.)
https://eqmac.app/
(System Audio Equalizer.  Make your music sound better by adjusting it for your speakers and environment.)



Espanso (free)
https://espanso.org/
(Text expander.  Create snippets that when typed expand into often-used terms and boilerplate.)




EtreCheckPro
(free; additional features available for a fee)
https://etrecheck.com/en/index.html
(Helps you track down the cause of serious problems on your Mac.  Can also remove annoying adware.)



eul (free)
https://apps.apple.com/us/app/eul/id1537133867
(System status monitoring app.)



FaceTime (free)
https://apps.apple.com/us/app/facetime/id1110145091
(Make audio and video calls for free.)



Filezilla (free)
https://filezilla-project.org
(Cross-platform FTP and SFTP client.)
 

FormulatePro (free)
http://code.google.com/p/formulatepro/
(Allows you to fill in PDF forms on-screen and print them.  Even locked ones.  The latest version of Preview can do most of what Formulate can do, and more, but Formulate is really good at what it does, and makes it easier. )
Note:  This application is not 64-bit and can’t be run under Mac OS 10.15 Catalina and later.



Fotor
(free/subscription. Commercial version adds more features.)
https://www.fotor.com/mac/index.html
(Easy to use, but powerful photo editing app.)



4LightData Forms (free)
http://4lightdata.com
http://4lightdata.com/pdfs/4LightData_Forms.pdf
(A surprisingly competent free database program.  More powerful in some ways than Symphytum.)




FreeOffice
(free)
https://www.freeoffice.com/en/
Comparison chart of the features and costs of each version of this product from Softmaker:
https://www.softmaker.com/en/comparison-freeoffice-softmaker-office
(Very similar to Microsoft Office; with a word processor, spreadsheet and presentation application included.  Excellent compatibility with Microsoft format files!  Softmaker makes two commercial versions of this office suite, called Softmaker Office, but the free version is all that many people might need.  Not a crippled or demo product.  On a par with LibreOffice; each has their strong points and weak points.)



FreeTube (free)
https://github.com/FreeTubeApp/FreeTube?tab=readme-ov-file
(Download the “freetube-0.xx-x-mac-x64.dmg” file.)
(YouTube player that blocks advertisements, tracking, and which allows downloading!)



Fugit
(free)
https://www.gorgeousity.com/fugit 
(Beautiful digital desktop clock.)



Full Deck Solitaire (free)
https://itunes.apple.com/us/app/full-deck-solitaire/id412980789?mt=12
(An awesome Solitaire game, offering a bunch of variations and nice game play.)



FunctionFlip (free)
https://kevingessner.com/software/functionflip/
(Controls your MacBook's function keys, turning special keys back to regular F-keys, or vice-versa.)



Garage Band (free)
https://apps.apple.com/us/app/garageband/id682658836?ls=1&mt=12
https://www.apple.com/mac/garageband/
("A fully equipped music creation studio right inside your Mac".)



Get Plain Text
(free)
https://apps.apple.com/us/app/get-plain-text/id508368068?mt=12
(Will convert any bit of text you copy into plain text, no matter where you copied it from [a website, PDF document or elsewhere]. You can activate the feature manually, or check “Automatically remove formatting” to make the app take care of it every time you copy something.)



Gimp (free)
http://www.gimp.org/downloads/
http://www.gimp.org/
(A very advanced photo retouching, image composition and image authoring program, similar to Photoshop.)
Free tutorials:
https://www.youtube.com/watch?v=Q8C0LJPpr64
https://www.youtube.com/watch?v=2EPIUyFJ4ag



Gladys (free, "tips" encouraged)
http://www.bru.build/gladys-for-macos
(A drag-and-drop 'shelf' that holds things you want to set aside, such as links, text snippets, map locations, contacts, images, photos, emails, messages and much more, without having to switch apps.)



Go64 (free)
https://www.stclairsoft.com/Go64/
(Scans your internal drive for 32-bit applications that won’t be compatible after upgrading to macOS Catalina or later.)




GreenOrbmax  (donation requested)
http://www.carsten-mielke.com/greenorbmax.html
(Makes the green button in the upper left of a window maximize the window to full screen.)




Growly Checkbook (free)
https://growlybird.com/checkbook/index.html
(Personal finance software.)




Growly Draw
(free)
https://www.growlybird.com/draw/
(Does both vector graphics and bitmapped.  A drawing program with a bit of painting ability.)



Growly Notes (free)
http://growlybird.com/notes/index.html
(Notebook program.  A really nice program for keeping notes, snippets from Web sites, etc.  If you work on big projects and need to keep all of your research/thoughts/citations in one place, this is it.  It has a garish default interface, but in Prefs there is an option to change to a very Mac-like interface.  Some prefer Evernote, but this program isn't Web-based, so it's more private.  In very recent versions of the Mac OS, Apple's Notes has evolved to do much of the same things; try Apple’s Notes first and see if it meets your needs.)



GrowlyWrite
(free)
http://growlybird.com/write/index.html
(If you want a word processor that is less complex than FreeOffice, above, and which is definitely easier to use than Microsoft Word, this one might be what you are looking for.)



GNUCash
(free)
http://www.gnucash.org/
(Quicken substitute.  GnuCash is personal and small-business financial-accounting software.  Designed to be easy to use, yet powerful and flexible, GnuCash allows you to track bank accounts, stocks, income and expenses. As quick and intuitive to use as a checkbook register, it is based on professional accounting principles to ensure balanced books and accurate reports. )
How to install:
http://wiki.gnucash.org/wiki/MacOSXInstallation



Handbrake (free)
https://handbrake.fr/downloads.php
(HandBrake takes videos you already have and makes new ones that work on your mobile phone, tablet, TV media player, game console, computer, or web browser.)



Hidden Bar (free)
https://apps.apple.com/us/app/hidden-bar/id1452453066?mt=12
https://github.com/dwarvesf/hidden
(Lets you hide menu bar items in their own menu to give your Mac a cleaner look.)



HitFilm Express
(free)
https://fxhome.com/express
Review:
https://www.techradar.com/reviews/hitfilm-express
(Very powerful video editing and video effects software.)



Home & Lock Screen Widgets (free)
https://www.imagetasks.com/lockera/
(Useful desktop widgets.  Keep track of essential information, do simple calculations, create sticky notes and to-do lists.)



HopToDesk (free)
https://www.hoptodesk.com
(Remote desktop sharing from your Mac to multiple other platforms.
Includes true end-to-end encrypted traffic, peer-peer file transfer, and live chat.
Allows users to share their screen and allows remote control access to their computers and devices.)



Hyperkey (free)
https://hyperkey.app
(Re-map Caps Lock key and/or create an additional modifier key that you can use in any app with keyboard shortcuts.)


IINA
(free)
https://iina.io/
(Video file player that works with many different formats. While VLC is very popular, IINA may be better.)



ImageOptim (free)
https://imageoptim.com/mac
(Saves disk space and bandwidth by compressing images without losing quality.  Combines several different compression techniques.  Allows choice of lossless or lossy compression.)




iMovie (free)
https://apps.apple.com/us/app/imovie/id408981434
(Apple's own movie editing and organizing software.)




Inkscape
(free)
https://inkscape.org
(A professional-level vector graphics application with layers and many other useful features.)



Itsycal
(free)
https://www.mowglii.com/itsycal/
(A superb little menubar calendar.
)



I
nvoices (free)
http://4lightdata.com
(Customer Sales Orders with Invoicing, Inventory and Purchase Order.)




Ivinci Express (free)
http://phyar.cn
(Vector drawing program reminiscent of the long-departed MacDraw.)




JumpCut (free)
https://snark.github.io/jumpcut/
(Clipboard manager. Copy, save, and paste as many things as you like in any order that you like.)



Junkyard (free, nag screen for donations)
https://zebcode.com/
(Mind mapping, outlining, and note keeping application.)




Karabiner-Elements
(free)
https://karabiner-elements.pqrs.org
(A powerful keyboard customizer for macOS.  Change keys to other keys, or have a key-press perform a rule.)



Keka
(free)
https://www.keka.io/en/
(A file archiving and unarchiving utility. Compresses files to save disk space, splits and compresses files for e-mailing, and/or encrypts files for security. Though the Mac OS has the built-in ability to create compressed Zip archives, it doesn't include the ability to password protect or encrypt a compressed zip archive. Keka adds this ability. Easy drag and drop. Free from the developer's website, or can be purchased via the Mac App Store if you want to support the developer. No difference in functionality.)



KeyKlu (free)
https://github.com/Anze/KeyCluCask
(Shows you Macintosh application's [keyboard] shortcuts. Easy to use: just press ⌘ twice and hold to see the list.)



Keynote (free)
https://www.apple.com/keynote/
(Apple’s own presentation program.  Previously available only with a new Mac or commercially; now totally free.  A joy to use!)



KoalaCalc
(free)
http://www.macropodsoftware.com/koalacalc/
(A really nice calculator.  Much more advanced than the one that comes with your Mac.  Includes tape and lots of conversions.)



Krita
(free)
https://krita.org/
https://krita.org/en/download/krita-desktop/
(A professional painting program. Photoshop replacement.)



Later (free)
https://getlater.app
(Clear and restore your desktop organization instantly.)
 

LazPaint (free)
https://lazpaint.github.io/
(Cross-platform image editor with raster and vector layers.)
Free tutorial:
https://www.youtube.com/results?search_query=LazPaint




Libre Office (free)
http://www.libreoffice.org
(A Microsoft Office clone; though more like the Windows version of Office than the Macintosh version.  Compatible with Office files and file formats. Also can open and edit WordPerfect files.  Includes very advanced word processor, spreadsheet, database, drawing, charting, and presentation capabilities.)



LULU (free)
https://objective-see.com/products/lulu.html
(Reverse firewall.  Keeps software, including malware, from calling home.  Little Snitch Alternative. macOS 10.15 and later only.)




Mac Mouse Fix (free)
https://mousefix.org/
(Smooth mouse scrolling and re-map mouse buttons.)



Maccy (free)
https://github.com/p0deje/Maccy
https://github.com/p0deje/Maccy/releases/tag/0.29.3

(Some consider this to be the best of the free clipboard managers!)



MacFanControl (free)
https://crystalidea.com/macs-fan-control
(Real-time monitoring of fan speeds and temperatures. Allows you to adjust fan speed and when they come on.  Solves overheating problems like those found on older MacBook Pros.)




MachineProfile (free)
https://www.micromat.com/products/machineprofile/
(Collects key, technical hardware information about your Mac that's not easily found elsewhere or by clicking through the tabs in "About this Mac...".
MachineProfile displays the technical profile of a Mac within a single window, which can then be saved as text or PDF or emailed to others. Using MachineProfile, easily find your Mac's serial number, processor speed, if you're running in 64-bit or 32-bit mode, whether you can run the next version of the Mac OS, and more.
)



MacWhisper (free; commercial Pro version adds more features)
https://goodsnooze.gumroad.com/l/macwhisper
(Quickly and accurately records and transcribes your dictation into text using AI.)
 

Mactracker (free)
https://mactracker.com/
(Awesome resource that allows you to quickly reference the specs of your Mac…or any Mac!)




MailTrackerBlocker for Mail (free)
https://apparition47.github.io/MailTrackerBlocker/
(Blocks e-mail trackers, read receipts, and spy pixels. Plugin for macOS Apple Mail program.)



Maintenance (free)
https://www.titanium-software.fr/en/maintenance.html
(Most of the routine maintenance that you need to do on your Macintosh, all in one app.  Unlike other similar utilities, this one is easy to use and it doesn’t include a bunch of confusing and possibly dangerous options that you don't need.
)



Manager (free)
https://www.manager.io
(Business accounting software.)




Meteorologist
(free)
https://heat-meteo.sourceforge.io
(Show the weather in the menu bar, with more detail in a pop-up menu.)



Mints (free)
https://eclecticlightdotcom.files.wordpress.com/2023/04/mints112.zip
About:
https://eclecticlight.co/mints-a-multifunction-utility/
(A collection of tools for investigating problems with the Macintosh OS.  Aimed primarily at the advanced user, system administrator, support folk, and developers. Although its tools are simple to use.) 



Monitor
Control (free)
https://github.com/MonitorControl/MonitorControl
(Controls your external display brightness and volume from your Mac.)



NetNewsWire (free)
https://netnewswire.com/
(RSS reader.  Shows you articles from your favorite blogs and news sites and keeps track of what you’ve read.)



NetSpot (free)
https://www.netspotapp.com/
(Lets you scan an area for Wi-Fi signal strength, and create floor plans for best wireless connections.)



NightOwl (free)
https://nightowlapp.co
(Switch between light mode and dark mode based on a schedule, or via shortcut.)



Noteaway (free. There is a commercial Pro version with more features.)
https://noteaway.com/
(Note taking app that resides in the menubar.)



Numbers (free)
https://apps.apple.com/us/app/numbers/id409203825
(Apple’s own spreadsheet program.  Previously available only with a new Mac or commercially; now totally free.)



Numi (free; commercial version has more features)
https://numi.app
(Amazing smart calculator! Also does unit conversions and time zones.)



OBS Studio (free)
https://obsproject.com/
(Video recording and live streaming)



Office-Reset  (free)
https://office-reset.com/
(Office-Reset is a free downloadable utility that you can use to fix problems and errors encountered with Microsoft Office for Mac apps. This includes Word, Excel, PowerPoint, Outlook, OneNote, OneDrive, Teams and AutoUpdate. The tool can help fix app launch errors, freezes, hangs, crashes, bad plug-ins, corrupt templates, performance issues, and confusing error messages.  Does not delete your documents and workbooks.)



OmniDiskSweeper (free)
http://www.omnigroup.com/products/omnidisksweeper/