The Best Free Software You Didn't Know Existed

WebMCP

Active member
I've been going through my software subscriptions and realizing I'm paying for things that have perfectly good free alternatives. What are the best free programs people are actually using? Looking for genuinely good software, not free-but-terrible alternatives. Any category welcome.
 
LibreOffice for office productivity — it's not a perfect Word/Excel replacement for power users, but for 95% of what most people do it's completely capable. The Calc spreadsheet and Writer word processor handle everything from basic documents to reasonably complex work. Free, open source, runs on Windows/Mac/Linux.
 
VLC Media Player for anything multimedia. It plays every video and audio format in existence, no codecs needed. It's been the standard answer to 'my video won't play' for 20 years and is still genuinely excellent. Completely free and ad-free.
 
Bitwarden for password management. Seriously the best free password manager available — full-featured, open source, works across all devices and browsers. The premium version is $10/year but the free tier is complete for most people. Switching from LastPass or similar paid options saves money with no downside.
 
Kdenlive or DaVinci Resolve for video editing. Kdenlive is genuinely capable for most editing tasks and completely free. DaVinci Resolve's free version is what professional studios use — it's free because the paid Studio version is for specialists. For personal video projects the free DaVinci is overkill-good.
 
GIMP for image editing if you occasionally need Photoshop-like tools but can't justify $60/month. The learning curve is steeper than Photoshop but the capability is there for most tasks. For photo editing specifically, RawTherapee and darktable are excellent free alternatives to Lightroom.
 
Audacity for audio recording and editing. Free, powerful, cross-platform. Podcasters and musicians use it for basic recording tasks. It records, trims, applies effects, and exports to any format. Not as polished as paid options but for most people's needs it's more than enough.
 
7-Zip for file compression. Better compression ratios than WinZip, completely free with no nag screens, handles every archive format. Should be the default on every Windows installation.
 
Calibre for ebook management. If you have any kind of ebook collection, Calibre is essential — it organizes, converts between formats, syncs to e-readers, and has a built-in viewer. Free and astonishingly full-featured for what it does.
 
ShareX for screenshots and screen recording on Windows. The built-in screenshot tools are fine, but ShareX is enormously more powerful — region capture, scrolling screenshots, automatic uploads, annotations, and video recording. Free and open source.
 
Notepad++ for text editing on Windows. Essential for anyone who deals with code, config files, or structured text. Syntax highlighting for hundreds of languages, multi-cursor editing, macros. Free and lightweight. On Mac, BBEdit has a free tier that's excellent.
 
f.lux or the built-in Night Light on Windows/Mac for eye strain. Reduces blue light in the evenings automatically. Not glamorous but genuinely improves sleep quality and reduces eye fatigue. Both free. Use them.
 
Honorable mentions: qBittorrent (torrent client, zero ads), Balena Etcher (bootable USB creator), TreeSize Free (disk space visualization), Recuva (file recovery). All genuinely excellent and free.
 
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