Chrome Extension · BYOK · Free

Master highest-ROI skill building from YouTube tutorials from scratch.

No summary. No quiz. No passive consumption fluff. Just real skills: extracted and exercised in one click.

Install Free → See how it works

32 KB · Zero data collection · English · Privacy

The Product

Your YouTube toolbar, upgraded

Praxis lives in the YouTube action bar. One click extracts the single highest-ROI insight and generates a mastery-grade exercise. You build it. You master it.

1. Open any tutorial
2. Insight extracted
3. Mastery exercise

The Loop

Built for how you actually learn

Praxis doesn't summarize. It designs a mastery-grade exercise around the one insight that matters most, and you build it from scratch.

01

Highest-ROI Insight Extraction

LLM analyzes the full transcript and identifies the single mechanism worth mastering, the pattern a YC founder would pull from a 40-minute talk.

02

Mastery-Grade Exercise Design

Not a quiz. A concrete, checkbox-driven build task: chunk, embed, retrieve, generate. Zero fluff. Easy to understand.

03

BYOK - Unlimited, Private

Gemini, OpenAI, Anthropic, OpenRouter, OpenCode Zen. Your key never leaves your browser. Never stored server-side. No $10/mo subscription. Free tier + your key = unlimited.

Why Praxis

Different category. Different outcome.

Summarizers Note-takers Transcript tools Praxis
Output Text summary Structured notes Raw transcript Mastery exercise
Learning mode Passive reading Passive organizing Passive reading Active building
Insight selection Everything (diluted) Everything (diluted) Everything (raw) Single highest-ROI
Retry / depth Regenerate summary Re-organize notes Re-copy transcript New exercise, same insight
Pricing Freemium / $/mo Free (Google) / $ Free / Freemium Free + BYOK = unlimited
Anti-generic Forces output Forces output N/A Flags non-tutorials

Who it's for

Built for builders who value time

Founders & builders

Extract the key takeaway from startup talks, founder interviews, technical deep-dives. The single insight that changes your roadmap.

Self-taught engineers

Turn endless tutorials into a portfolio of mastered skills. Stop watching. Start building the core mental model, not syntax.

Senior devs leveling up

Learn new frameworks by mastering the core abstraction, not the API surface. One exercise = the mental model mastered.

Teams

Shared exercise library = institutional knowledge capture. Onboard faster. Preserve the "how we do it here" from every talk.

Questions

Straight answers

Those give you information (summaries, notes, transcripts). You don't learn by collecting summaries. You learn by doing the work. Praxis gives you mastery: a designed exercise that forces you to build the highest-ROI skill from scratch.
Best on tutorials, deep-dives, podcasts, conference talks, founder interviews, how-tos: videos with actionable insights. Vlogs, pure opinion, news = flagged as "no actionable insight" instead of forcing a generic exercise.
Yes: BYOK (Bring Your Own Key). Choose: Google Gemini, OpenAI, Anthropic, OpenRouter, OpenCode Zen. Your key stays in your browser, sent per-request to your provider. Never stored on our servers. Unlimited exercises with your own key.
A random local user ID, video URL/transcript (sent to your AI provider), your feedback ratings, completion signals, and usage timestamps. Full privacy policy →
No. The extension is free. You pay your AI provider directly (or use free tiers). No middleman markup. No monthly fee from us.

Stop watching. Start building.

Install the free Chrome extension. Bring your key. Master your first skill in the next 10 minutes.

Install Praxis Free →

View source on GitHub · Privacy · Built by Midnight Builds