Disclaimer: I tried searching for something like “useful programs”, “useful packages”, “useful tools”, “recommended packages”, etc. Don’t see any posts like that, if this is a duplicate, then it’s not intentional and my search skills have failed me.
Anyway, I was watching a YT video today and the guy launched a cool program in his terminal, I paused to see what he was running. It was btop, of course being new I never heard about it. Then I thought – how many cool tools/packages are there, which people use, but I am not aware of?
So what do you like? What do you install on a fresh install? What are the most useful tools in your belt? What can’t you live without on Linux?
Perhaps I’ll find something useful :)


Some applications I’ve not seen yet:
Terminal
https://ntorga.com/gzip-bzip2-xz-zstd-7z-brotli-or-lz4/
lz4- fastest compression/decompression (several GB/s); compression is good, but not amazing; very little CPU usagezstd- very fast compression, fast decompression (few GB/s compression; ~600MB/s for decompression; better or equal compression compared to zip, depending on level)cloc <folder>- gets lines of code for a project/foldergdu <optional location>- likencdu, but faster (written in go) - think TreeSize/WinDirStat for the terminalstat <file>- built-in application to show the modified, created, etc stats for a file.hyperfine- benchmark for binaries - run this in front of a command to have it run multiple times, and show some statistics.jpegli- great to recompress JPEG files into smaller filesizes, with only very few/minor visual effects.just- used with aJustfilein a project so I can runjustto see the commands, or runjust test,just clean,just ...to run project-specific commands.msedit- ye oldeedit.com, reborn! Feels a little bit cursed to use an MS text editor on the terminal, but it’s better for beginners than nano or micro or whatever.oxipng- lossless png compressionpngquant- lossy png compression (it forces the file to use a palette of n colors, which reduces the colors used, so it will affect your files, unlikeoxipng.upx- compress binary filesvisidata- analyses csv files, and shows some stats. Like Data Wrangler for the terminaloxfmt- think “oxidized prettier” (file formatter for programmers)GUIs
Whatpulse- I’ve been tracking my keypresses since 2005. not a terminal application, unlike the rest.fsearch- Linux alternative to Everything by Voidtools. It will be a little bit different, but it does the job.mlocatepackage, with thesudo updatedbandlocatecommands, if you prefer the terminalkeepassxc- password managerspeedcrunch- best GUI calculator, IMO. Just a bar for input, and a bunch of stored results above it. Use theansvariable to use the previous answer in the current calculation, likeans*2to multiply the previous answer. Or use variables, likex=5,y=2,x+y:7.Just to be clear, the parent poster means “binary as in executable binaries”, rather than “binary as in non-text”.
This was replaced by plocate some time back in Debian, which IIRC was generally faster. Some distros used a compatibility package for some time; you may actually have plocate installed yourself.