Catalyst

Spec sheet

Purpose

Catalyst is a video downloader that puts yt-dlp behind a graphical interface.Read 11 Oct 2026 · catalyst.tachyon-studios.com

Free plan

YesRead 21 Sep 2026 · catalyst.tachyon-studios.com

Privacy

The maker says Catalyst has no analytics, telemetry, or account requirement, and that downloads run locally on the user's machine.Read 11 Oct 2026 · catalyst.tachyon-studios.com

License

The maker describes Catalyst as free and open source and links to the MIT license.Read 11 Oct 2026 · catalyst.tachyon-studios.com

Availability

The download page lists Windows, macOS, and Linux, but also says no releases are available yet and the first alpha is coming soon.Read 11 Oct 2026 · catalyst.tachyon-studios.com

Batch downloads

YesRead 21 Sep 2026 · catalyst.tachyon-studios.com

Cookie support

Catalyst can retrieve cookies from Chrome, Edge, Firefox, and Brave, or import a cookie file for members-only content.Read 11 Oct 2026 · catalyst.tachyon-studios.com

Destinations

Users can create named output categories, each with its own directory and colour.Read 11 Oct 2026 · catalyst.tachyon-studios.com

Device platforms

Windows,macOS,LinuxRead 21 Sep 2026 · catalyst.tachyon-studios.com

Download history

Catalyst logs downloads with thumbnails, channel, date, and size, and lets users search and redownload items.Read 11 Oct 2026 · catalyst.tachyon-studios.com

Engine updates

The site says yt-dlp updates silently in the background.Read 11 Oct 2026 · catalyst.tachyon-studios.com

Formats

Users can choose the container, codec, and resolution, including MP4 (H264), Best Quality, MP3, and M4A.Read 11 Oct 2026 · catalyst.tachyon-studios.com

Maximum video quality

4kRead 21 Sep 2026 · catalyst.tachyon-studios.com

Output formats

MP4 (H264),Best Quality (AV1/VP9),MP3,M4ARead 21 Sep 2026 · catalyst.tachyon-studios.com

Progress and notifications

Catalyst shows live progress, speed, and ETA, and can send an operating-system notification when its window is not focused.Read 11 Oct 2026 · catalyst.tachyon-studios.com

Queue

Users can add URLs in bulk, reorder downloads by dragging, and control how many run at once.Read 11 Oct 2026 · catalyst.tachyon-studios.com

Site support

Catalyst says it supports more than 1,800 sites through yt-dlp.Read 11 Oct 2026 · catalyst.tachyon-studios.com

Supported sources

YouTube,Vimeo,Twitter/X,TikTok,Instagram,Reddit,Twitch,Bilibili,and 1,800+ sites via yt-dlpRead 21 Sep 2026 · catalyst.tachyon-studios.com

Windows setup

The download page says the Windows binary is unsigned and may trigger a SmartScreen warning.Read 11 Oct 2026 · catalyst.tachyon-studios.com

Plans and prices

Every Catalyst plan and price →

Where Specifiction places it

• Video Downloaders#32 of 1358.4