Note: This is only a first draft/brainstorm. I will try to organize the list with more useful sections in the future Feel free to contribute!

Download/Scraping utilities

  • Rclone: A command line program to sync files and directories to and from various cloud storage providers
  • aria2: A lightweight multi-protocol & multi-source command-line download utility
  • wget: Utility for non-interactive download of files from the Web (HTTP & FTP)
  • curl: Tool and library for transferring data with URL syntax, supporting many protocols
  • Youtube-DL: A command-line program to download videos from YouTube and a few hundred more sites
  • annie: Youtube-DL alternative writtent in Golang
  • wikiteam: set of tools for archiving wikis
  • FicSave: Online fanfiction downloader
  • FanFicFare: Tool for making eBooks from stories on fanfiction and other web sites
  • yt-mango: Youtube metadata archiver
  • Youtube-MA: Youtube metadata archiver
  • CrowLeer: Powerful C++ web crawler based on libcurl
  • floatplane_ripper: Script to rip all videos from https://floatplane.rip/
  • grab-site: The archivist's web crawler: WARC output, dashboard for all crawls, dynamic ignore patterns
  • dzi-dl: Deep Zoom Image Downloader
  • iiif-dl: Command-line tile downloader/assembler for IIIF endpoints/manifests
  • ChanThreadWatch: Saves threads from *chan-style boards and checks for updates until the thread dies
  • Sonarr: PVR for Usenet and BitTorrent users
  • Radarr: A fork of Sonarr to work with movies à la Couchpotato
  • Jackett: API support for torrent trackers (works with Sonarr, Radarr and others)
  • Sick-Beard: PVR for newsgroup users (with limited torrent support)
  • Lidarr: Music collection manager for Usenet and BitTorrent users
  • Mylar: An automated Comic Book downloader (cbr/cbz) for use with SABnzbd, NZBGet and torrents
  • bazarr: Companion application to Sonarr and Radarr for downloading subtitles
  • RipMe: RipMe is an album ripper for various websites. Runs on your computer. Requires Java 8.
  • Instagram Scraper: Instagram-scraper is a command-line application written in Python that scrapes and downloads an instagram user's photos and videos. Use responsibly.
  • gallery-dl: Fownload image galleries and collections from pixiv, exhentai, danbooru and more
  • FlexGet: Multipurpose automation tool for content like torrents, nzbs, podcasts, comics, series, movies, etc
  • PyInstaLive: Instagram live stream downloader.
  • RedditDownloader: Scrapes Reddit to download media of your choice
  • HTTrack: Download a website from the Internet to a local directory
  • Heritrix: Extensible, web-scale, archival-quality web crawler
  • wail: Web Archiving Integration Layer: One-Click User Instigated Preservation
  • Collect: A server to collect & archive websites that also supports video downloads

Compression

  • KGB Archiver: compression tool with unbelievable high compression rate
  • peazip: File archiver utility

Network

  • NetLimiter: Internet traffic control and monitoring tool for Windows

File systems

File conversion

  • AAXtoMP3: convert AAX files to common MP3, M4A, M4B, flac and ogg formats through a basic bash script frontend to FFMPEG
  • html2warc: Convert web resources to a single warc file

Utility Scripts

Content sharing

  • opds: Easy to use, Open & Decentralized Content Distribution
  • ipfs: Protocol and network designed to create a content-addressable, peer-to-peer method of storing and sharing hypermedia in a distributed file system
  • h5ai: HTTP web server index for Apache httpd, lighttpd, nginx and Cherokee

Data curation

  • DeepSort: AI powered image tagger backed by DeepDetect
  • diskover: File system crawler, disk space usage, file search engine and file system analytics powered by Elasticsearch
  • fucking-weeb: A library manager for animu (and TV shows, and whatever).
  • Everything: Locate files and folders by name instantly (Windows)
  • beets: Music library manager and MusicBrainz tagger
  • picard: MusicBrainz tagger
  • Calibre: Ebook manager
  • WinDirStat: Disk usage statistics viewer and cleanup tool for Windows
  • jdupes: Powerful duplicate file finder
  • Mp3tag: Powerful and easy-to-use tool to edit metadata of audio files (Windows/Mac)
  • FileBot: FileBot is the ultimate tool for organizing and renaming your Movies, TV Shows and Anime
  • MediaInfo: Convenient unified display of the most relevant technical and tag data for video and audio files
  • tree: 'tree' command for linux
  • grepWin: A powerful and fast search tool using regular expressions (Windows)
  • TeraCopy: Copy your files faster and more securely
  • baobab: Graphical disk usage analyzer
  • phockup: Media sorting tool to organize photos and videos from your camera
  • MediaElch: Media manager for Kodi

APIs & Online tools

  • thetvdb: TV shows metadata (used by plex)
  • iqdb: Multi-service reverse image search

Hardware / Monitoring

  • CrystalDiskInfo: A HDD/SSD utility software which supports a part of USB, Intel RAID and NVMe.
  • smartmontools: Control and monitor storage systems using the (SMART) built into most modern ATA/SATA, SCSI/SAS and NVMe disks
  • Hard Drive Sentinel: Multi-OS SSD and HDD monitoring and analysis software