Prism 1.1.1 — One beam. Many rays.

A fast, open-source download manager for Windows, Linux and macOS, with browser integration
and video downloads.

What's new in 1.1.1

• Prism speaks your language: Czech, German, Spanish, French and Italian, besides English.
  Prism follows your system's language; pick another one in Settings › General › Language.
  Thanks for the idea on Reddit! Spotted a clumsy translation? Tell us in an issue.
• Portable version: the browser extension finds Prism again. The portable Prism keeps its
  data next to prism.exe, but the helper the extension talks to looked for it in
  %APPDATA%\Prism, so Start Prism and Sync from Prism timed out
  (#12).
• Torrents with several files are saved in their own folder (named after the torrent)
  instead of spilling into your download folder, and Open folder opens it.
• Start minimized and starting with your computer keep Prism in the tray; the window
  appeared anyway.
• Linux: Zen 1.18.6+ and Firefox 147+ keep new profiles in ~/.config. Prism now finds them,
  so Repair connects them (the extension said No such native application).
• Fedora / openSUSE: the rpm needs any /usr/bin/ffmpeg instead of ffmpeg-free, so the
  full ffmpeg from RPM Fusion works
  (#10).
• The Chrome Web Store extension (1.1.0) keeps working as it is; nothing to update there.

Prism 1.1.0

• The browser extension is in the
  Chrome Web Store:
  one click to add it to Chrome, Edge, Brave, Opera, Vivaldi or Helium, and it updates itself.
• Zen and Helium in Settings › Browser integration; Repair whenever a browser needs it.
• Playlists: every video under its own title, optional numbering (01 - Title.mkv) and
  One at a time. The container from Settings (MKV, WebM) is used. Thanks to
  @asalia22!
• Ten new "download complete" sounds, real connections for HLS and DASH downloads (thanks to
  @uuc110) and a What's new window after updates.

Downloads

Step-by-step guides: installing Prism ·
installing the browser extension.
Verify downloads with SHA256SUMS.txt.

What's inside

• Multi-connection engine written in Rust: up to 32 connections per file, dynamic
  segmentation (a freed connection splits the largest remaining range), automatic
  detection of server connection limits, writes straight into the final file.
• Resume that survives crashes: pause, quit, lose power — Prism continues where it
  stopped and validates the file against the server.
• Browser integration: click a download link and Prism takes over. A Download video
  button over video players, a popup listing every stream on the page, right-click menus.
• Video and audio: YouTube and every site yt-dlp supports. Choose MP4 + quality (up
  to 8K/HDR) or MP3 only. Subtitles, chapters, thumbnails, SponsorBlock.
• More protocols: FTP/FTPS, HLS and DASH streams, BitTorrent and magnet links.
• Organisation: categories, queues with schedules and speed limits, actions when a
  queue finishes (sleep, shut down…), site grabber, batch downloads, clipboard monitor.
• Liquid-glass UI with dark and light themes, six accent colours and a mini window.

Known limitations

• The installers are not code-signed (signing certificates are paid):
  • Windows SmartScreen: click More info → Run anyway.
  • macOS: run xattr -dr com.apple.quarantine /Applications/Prism.app once (or System
    Settings → Privacy & Security → Open Anyway). In-app updates don't need this again.
• Firefox: Prism isn't in Firefox Add-ons yet. Its extension is loaded by hand, and Firefox
  keeps unsigned add-ons only until restart, except in Developer Edition / Nightly / ESR.
• macOS builds are produced by CI and tested there; feedback from real Macs is very welcome.
• Flatpak browsers on Linux can't talk to native apps (a browser sandbox limitation) — use
  the deb/rpm version of your browser.

Found a bug? Open an issue.
Like Prism? A ⭐ helps a lot.