Can I use my own Cobalt server with this extension?

Yes, the settings panel will let you enter the URL of any Cobalt-compatible API, so you can point it at your own self-hosted server instead of the public instance.

What video and audio options will I see?

The planned format panel will show the video qualities and audio-only choices the Cobalt API returns, so you can pick exactly what you want.

How do I add multiple URLs to the download queue?

The queue manager is expected to accept bulk URL lists, drag-and-drop links, and right-click context menu additions, lining them up for processing automatically.

What happens if a download fails?

Automatic retry logic will re-queue failed items up to three times before flagging them, so you won't need to monitor each download manually.

How are downloaded files named?

Filenames will be generated cleanly using titles pulled from source page metadata, avoiding random strings and making files easier to identify.

Can I review my download history?

A download log is planned to record every completed and failed item, allowing you to review past downloads and retry any that didn't succeed.

What browsers will Cobalt Downloader support?

The extension is being built for Chrome, Edge, Firefox, Brave, and Opera, with Safari and mobile browsers not supported at this time.

Use Cobalt Downloader only for videos you own or have permission to save. Respect the platform and creators, and do not redistribute downloaded videos without the necessary rights.

Downloader Utilities

Cobalt Downloader

Name: Cobalt Downloader
Brand: SERP Apps
SKU: cobalt-downloader
Availability: PreOrder
Rating: 4.9 (3 reviews)

Transform your Cobalt downloads with a powerful queue manager that handles bulk URL lists, drag-and-drop, and context menu additions.

Join Waitlist

Browser extension

Current-page workflow

Browser downloads

40,000+ SERP Apps users

Try it free — 3 downloads, no credit card

Your downloads never touch our servers

No ads, no tracking, no analytics

One-time payment, lifetime updates

Works on Windows, Mac, and Linux

Email support, answered by the people who built it

About Cobalt Downloader

Managing multiple downloads no longer means juggling browser tabs or repeating the same manual steps. Cobalt Downloader gives you a proper queue system where you can drop entire lists of URLs, drag links directly into the panel, or add pages from the right-click menu. Every item lines up automatically, ready for processing.

The real-time progress panel shows download speed, estimated time remaining, and per-item status at a glance. If something fails, automatic retry logic re-queues the item up to three times before flagging it, so you don’t have to babysit each download. Completed files get clean names pulled from the source metadata instead of random strings.

Review everything in the download log, which records both completed and failed items for easy re-download. Whether you’re grabbing a handful of videos or an entire playlist worth of content, the queue manager turns a tedious chore into a smooth, background operation.

Trusted at scale

Trusted by 40k+ SERP Apps users.

Private & local

Private downloads. No ads or tracking.

One connected library

Part of the SERP Apps Extensions Library.

How It Works

Download in 3 clear steps

Open the page, let the extension detect what is available, and save the file to your computer.

Configure your Cobalt API endpoint

Enter the URL of any Cobalt-compatible API in the extension settings. Use the public instance or point it at your own self-hosted server.

Send a URL to Cobalt

Right-click any page or click the toolbar icon. The extension sends the URL to your Cobalt instance and retrieves available format options.

Pick your format and quality

Choose from video quality tiers, audio-only extraction, or specific container formats. The selector shows everything the Cobalt API returns.

Happy Users

Recent customer feedback

Short, practical feedback from people using Cobalt Downloader in real workflows.

Good companion for self-hosted Cobalt

I run my own Cobalt instance and this extension finally gives it a usable front end. The queue manager alone saves me 30 minutes a day.

Felix Lindgren

2025-02-22

Extension button is easy to use

Pasting URLs one at a time into the Cobalt web page was painful. Now I just open the extension and the download appears in my queue. So much smoother.

Amara Osei

2025-01-18

Reliable queue management

The retry logic caught three failed downloads I would have missed completely. Clean filenames and progress tracking make it easy to manage large batches.

Jordan Whitfield

2025-03-09

These comments and ratings were collected during our July 2026 customer survey and reviewed against support records before publication.

Features

Everything it does

Core capabilities included in Cobalt Downloader.

The extension is designed to forward a URL to any Cobalt-compatible API you configure, including self-hosted setups.

A planned format panel shows the video qualities, audio-only modes, and container types the API returns.

The queue manager will accept lists of links, drag-and-drop actions, and items added from the right-click menu.

A real-time progress view is intended to present download speed, remaining time, and status per item.

Failed transfers will be automatically retried up to three attempts before they are marked.

Filenames are built cleanly using titles pulled from source page metadata instead of random characters.

You can switch between a public Cobalt instance and a private one through a configurable endpoint field.

A download log is planned to capture each completed and failed item, allowing review and re-download.

Enter the address of your preferred Cobalt-compatible API in the settings to direct requests.

Right-clicking a page or clicking the toolbar icon will send the URL to your chosen instance for format retrieval.

From the returned options, pick a video quality tier, an audio-only extraction, or a specific container.

Files will download with progress indication and retry logic, while the queue panel supports adding URLs and retrying.

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