YT Grab Companion
Features How it Works FAQ Firefox Add-on
Official Companion · Version 1.0.0 for Windows

Full 1080p & Crystal Audio.
100% Free. Truly Private.

The lightweight native companion for the YT Grab Firefox Add-on. Enjoy lightning-fast YouTube downloads with guaranteed AAC audio synchronization — no servers, no paywalls, zero ads.

Download Companion for Windows (.exe) 🤗 View Open Source on Hugging Face
1-Click Installer • No Admin Rights Needed • 100% Open Source & Auditable
Quick 4-Step Windows Setup Guide
Takes ~10 seconds
How to install YT Grab Companion on Windows
Why YT Grab?

Built for Performance & Privacy

Zero Paywalls or "PRO" Fees

Other downloaders lock 1080p and high-quality MP3 behind paid upgrades. YT Grab gives you maximum resolution and bitrate completely free.

100% Local & Private

Your downloads are never sent to third-party proxy servers. Everything is assembled directly on your computer, ensuring complete privacy.

Guaranteed Universal Audio

Converts and merges separate YouTube streams with universal AAC sound, ensuring clear playback on Windows Media Player, phones, and TVs.

Quick Setup

Ready in Under 30 Seconds

01

1. Download Companion

Click the download button above to get the standalone Windows installer (`YT-Grab-Companion-Setup.exe`).

02

2. Run the Installer

Open the file and click Next. It installs in 3 seconds to your user profile without requiring administrator password prompts.

03

3. Click Download

Open any video on YouTube in Firefox. Click the red Download button right below the player and choose your preferred quality.

Comparison

How YT Grab Compares

Feature YT Grab + Companion Other Add-ons (e.g. Easy Downloader)
1080p & 4K Downloads ✓ 100% Free Forever ✗ Paid "PRO" Upgrade required
Data Privacy ✓ 100% Local (Never leaves your PC) ✗ Sent to third-party proxy servers
Sound Compatibility ✓ Universal AAC (Plays everywhere) ✗ Often muted or incompatible codecs
Speed & Queues ✓ Unthrottled (Uses your full fiber speed) ✗ Server bottleneck & waiting queues
Ads & Popups ✓ Zero Ads / Zero Spam ✗ Donation nag-screens and sponsor ads
Got Questions?

Frequently Asked Questions

Why does YT Grab require a companion app?
YouTube does not provide single-file downloads for high resolutions (1080p, 1440p, 4K). Instead, they split video and audio into separate DASH streams. Web browsers strictly isolate extensions for security, preventing them from merging high-bitrate video and audio streams together. The companion app connects via Firefox's official Native Messaging API to merge the streams locally on your PC.
Does the installer require Administrator privileges?
No! The companion installs directly into your user application directory (`AppData\Local\Programs\YT Grab`) and registers only for your user account. It never prompts for administrator passwords and never modifies protected system files.
Is the companion safe and open-source?
Yes, 100%. The companion is built on the industry-standard, battle-tested open-source engines yt-dlp and FFmpeg. It contains zero analytics, zero trackers, and zero external network calls beyond downloading your selected video directly from YouTube.
How do I uninstall the companion if I no longer want it?
Just like any standard Windows application: Open Windows Settings → Apps → Installed apps, search for YT Grab Companion, and click Uninstall. It will cleanly remove all installed files and browser registry entries.