7-Zip

7-Zip is a free, open-source file archiver that opens almost everything and compresses tighter than most paid rivals. A plain interface is the only real cost.
CCleaner

CCleaner is a PC cleaner for junk files, browser traces, and uninstall leftovers on Windows, Mac, Android, and iOS. The free tier still does the real work.
VLC Media Player
VLC media player opens nearly any video or audio file for free, on Windows, Mac, Linux, Android, and iOS, without hunting down a separate codec pack.
Sumatra PDF
Sumatra PDF is a free, no-frills PDF reader that opens files on Windows almost instantly, without Adobe’s bloat. See who it actually fits.
WPS Office

WPS Office is a free office suite with Word, Excel, and PowerPoint compatible tools, PDF editing, and AI Copilot built in across nearly every device.
LibreOffice

LibreOffice is a completely free, open source Office & Productivity suite covering six apps, though heavily formatted Word and Excel files don’t always translate perfectly.
Mozilla Firefox

Mozilla Firefox is a free, open-source web browser that runs on its own independent engine, built around strong privacy defaults and deep customization.
Brave

Brave Browser blocks ads and trackers automatically, then adds a search engine, an AI assistant, and a crypto wallet. What this browser gets right, and where it doesn’t.
Avast One: Free Antivirus

Avast One’s free antivirus tier now bundles a VPN, AI scam detection, and breach monitoring, but its data-selling history still shapes the trust question.
AVG Free Antivirus

AVG AntiVirus Free covers the malware basics on Windows, Mac, Android, and iOS at no cost, though its scans lean heavier on the CPU than most rivals.