• Audacity (open source audio software)
• CBR Reader (read comic book format files)
• DaFont (collection of downloadable fonts)
• Flashpoint (collection of preserved flash games)
• FreeDOS (open source DOS-compatible operating system)
• FreeTube (private ad-free Youtube client)
• IrfanView (graphics viewer)
• JDownloader (open source download manager)
• qBittorrent (open source peer-to-peer torrent client)
• QuiteRSS (RSS/Atom news feed reader)
• Soulseek (peer-to-peer file sharing network)
• syncthing (secure file synchronization)
• Visual Studio Code (code editing application)
• VLC (open source multimedia player)
• WACUP (media player based on Winamp)

in-browser/no download required

• 12ft Ladder (remove paywalls)
• Backloggd (keep track of all your games)
• Backloggery (similar to Backloggd with some differences)
• bitwarden (secure password manager)
• breezewiki (makes 'Fandom' wiki pages readable)
• Catbox (host files up to 200MB)
• completionist.me (track progress of your Steam games)
• File Garden (host files with no limits)
• Have I Been Pwned (check if your data's been compromised)
• Have I Been Trained (check if your art was used for ai training)
• JustTheRecipe (removes clutter from online recipes)
• light pollution map (see the amount of light pollution worldwide)
• noclip (freely explore fully rendered video game levels)
• PhishTank (check URLs for potential phishing)
• Piskel (pixel art/sprite editor)
• RANDOM.ORG (true random number generator)
• trace.moe (reverse search anime screenshots)
• URLVoid (check potentially malicious sites)
• waifu2x (upscale images into higher resolutions)
• wayback machine (view old and deleted web pages)
• Webmaster Tools (tools for building a website)
• What is my viewport (check your screen viewport + size)

browser add-ons

• AnnotationsRestored (adds old annotations back to Youtube vidoes)
• Bypass Paywalls (bypass paywalls on select websites)
• Dark Reader (enables dark mode on all websites)
• Decentraleyes (blocks content delivery network trackers)
• Enhancer for Youtube (various enhancements for Youtube)
• Indie Wiki Buddy (redirect from Fandom wikis to independent wikis when possible)
• MinerBlock (blocks cryptocurrency miners)
• Privacy Badger (blocks invisible web trackers)
• return-youtube-dislike (returns the dislike counter to Youtube videos)
• Ruffle (flash player emulator)
• SponsorBlock (skip sponsors in Youtube videos)
• uBlock Origin (open-source ad blocker)
• XKit Rewritten (enhances Tumblr's web interface)

resources

• 3DS Hacks Guide (simple guide for 3DS homebrew)
• 3r0s (a ton of random resources)
• Anna's Archive (open-source open-data library)
• Battery University (learn all about batteries)
• GNU Project/Free Software Movement (project supporting free software/copyleft)
• HowStuffWorks (learn how stuff works)
• Javascript Kit (tutorials and codes for javascript)
• Lookup Tables (collection of lookup tables)
• My Abandonware (huge collection of old abandonware games)
• Old Games Download (collection of abandonware games)
• Open Library (free library hosted by Internet Archive)
• piracy index
• piracy/torrenting guide
• Pretendo (replacement for 3DS and Wii servers)
• The Eye (index of preserved and archived content)
• The Therian Guide (guide to therianthropy)
• The VG Resource (collection of video game sprites, models, etc.)
• Vimm's Lair (roms, emulators, and manuals)
• W3Schools (coding tutorials)
• Z-Library (large e-book libary)