One Click. Full summary.

YouTube Summariser

YouTube Summariser: one click from the subtitle panel. Summary delivered inside your browser. You never leave the page.

No copy-paste. No tab switching. No prompt engineering.

Two Editable AI Prompts

World First Browser OS

Launch from Quick Launch

150+ Tools

Two Buttons.
Two Prompts.

Two Completely Different Outputs.

Click Summarise in the subtitle panel. The AI receives the full transcript as clean text — no timestamps, no formatting noise. Built for learning. The AI focuses purely on what was said, not when it was said. Structured summary shaped entirely by your custom prompt.

Click Summarise + Time and the AI receives every line with its timestamp attached. Built for research. Create chapter lists, timelines, minute-by-minute breakdowns. Jump straight to the parts that matter.

Each button has its own separate, editable prompt. Same video. Two buttons. Two completely different outputs.

Your Prompt.
Your Rules.

Nothing Hidden.

Every other summariser hides the prompt. You click “Summarise” and hope the AI does what you want. When it doesn’t, you have no way to fix it.

Open Settings. Two prompt boxes — one for each button. Read them. Change them. Make them yours.

Tell the AI to write study notes. Extract every statistic mentioned. Create a tweet thread. Produce a one-sentence TL;DR. Format the output as a blog post draft. As detailed or as simple as you like. The AI follows your instruction exactly. No other toolkit gives you editable prompts alongside data scraping and ad skipping. The YouTube content tools do.

Your API Key.
Your Cost.

No Middleman. No Subscription.

YouTube Summariser connects to the same AI Chat system built into the extension. Your OpenAI or OpenRouter API key. Your choice of model. Your data stays between you and the API.

No middleman server. No monthly subscription for “AI credits.” No per-summary fee.

Pay what your API provider charges per token. For a typical 45-minute video summary, that’s a fraction of a cent.