What is SpaceTube? Overview, metrics & alternatives

SpaceTube is a browser AI agent for Understand video content faster, locate key moments, and take notes efficiently while watching YouTube. Pricing: Free. As of 2026-09-10, KanonAgent records 6 upvotes. First indexed by KanonAgent on 2026-07-27.

SpaceTube enhances YouTube viewing with AI-powered summaries, searchable subtitles, time-stamped notes, and playback controls in a single panel.

6 upvotes

Tracked by Kanon since Jul 27, 2026

no signal yet

status

10/100

momentum · conf 0.43

19d

tracked since 2026-08-22

evidence records

No signal event on file yet — status is unknown, not "quiet".

📈 Timelinewhat changed, and when

2026-08-22 first observed Kanon started keeping permanent history for this agent

🔎 Known / Unknown 14 of 23 fields unknown

Machine-callable	—	unknown	—
Open source	—	unknown	—
Self-hostable	—	unknown	—
Bring your own key	—	unknown	—
Autonomy level	—	unknown	—
Pricing model	—	unknown	—
Integrations	youtube	inferred	1 quote(s)

“Unknown” means we have not verified it — it is not a “no”. Hard filters never treat unknown as false.

🤖 Agent teardown · browser

Job to be doneUnderstand video content faster, locate key moments, and take notes efficiently while watching YouTube.

Who it is forIndividuals who consume video content and want to learn or retain information more effectively

Integrationsyoutube

PricingFree

Traction · why it is risingStrong appeal to knowledge seekers and students looking to optimize video learning.

Why it matters

It integrates AI directly into the video consumption experience, turning passive watching into active, efficient learning.

Evidence quotesverbatim, from the product’s own materials

“adds a panel right inside YouTube”— description

Chrome Extensions

Signal source: ProductHunt

Visit official site →

📛 Official badgefor your site / README

Building SpaceTube? Pick a style above — the embed code updates live. Deep color control via URL params: bg= / fg= / accent= (hex). It links back to this page.

On mobile tap Share for WeChat / RED (Xiaohongshu) / X; on desktop use Copy text and paste into the app.

FAQ

What is SpaceTube?

SpaceTube enhances YouTube viewing with AI-powered summaries, searchable subtitles, time-stamped notes, and playback controls in a single panel.

What does SpaceTube do?

Understand video content faster, locate key moments, and take notes efficiently while watching YouTube.

Why does SpaceTube matter?

It integrates AI directly into the video consumption experience, turning passive watching into active, efficient learning.

How much does SpaceTube cost?

Free

Is SpaceTube free?

Yes — SpaceTube has a free tier. Pricing as stated on its own page: Free

What does SpaceTube integrate with?

youtube

How popular is SpaceTube?

As tracked by KanonAgent: 6 upvotes (first indexed 2026-07-27).

What are the best SpaceTube alternatives?

Similar AI agents tracked by KanonAgent: browser-use, Akari Tickets, FriendFilter + GroupFilter, page-agent, Kome, happycapy.

SpaceTube alternatives — similar AI agents

browser-use Akari Tickets FriendFilter + GroupFilter page-agent Kome happycapy

Where this fits — browse the same shelf

AI Browser Agents AI agents for Video to structured notes AI agents that work with YouTube