Your hook decides in 3 seconds. We make those 3 seconds count.
Paste each new Shorts topic and get a feed-ready title, a 3-second hook, and marked retention beats at 15s and 30s so the script keeps paying off. It never claims YouTube Analytics or view-count data.
Other hook tools give you a score. This one refuses to. It measures which axis your own numbers support, and throws out the ones they do not. Paste your hooks with their real numbers. It builds candidate axes from your own copy, tests within-group homogeneity first, and only then compares groups. An axis whose groups are not internally consistent is rejected, not crowned. Ships with one measured prior: name the specific thing, not the category. On 14 ad creatives that ran 2.44x on CTR.
你的带货视频一开口就被划走？贴一句开场，拿到 7 维打分（例：「大家好…绝绝子」只有 2/14）＋3–5 版可 A/B 开场＋0–6 秒口播分镜。中文电商钩子库＋英文版（TikTok / Reels / Shorts，含独立开发者 build in public）。只出方案，不生成视频，不承诺爆款。 EN: Viewers swipe before your second sentence? Paste your first 3–6 seconds and get a 7-point hook score, 3–5 new openings and a shot-by-shot script you can film today. Chinese + English editions in one download. No video rendering.
Your video is good, but viewers swipe before the second sentence — the first three seconds lost them. Give Hook Lab a topic, trend, product, or niche and get back what actually decides retention: a clear positioning angle, trend-informed topic ideas, 5+ scroll-stopping hook options (spoken line + on-screen text, by hook type), a tight beat-by-beat script, and a caption. Built for creators, founders, marketers, and social teams shipping short-form for TikTok, Reels, and Shorts.
Analyze the first 6 seconds of any finished video or video script. Get second-by-second retention predictions, clear explanations of why viewers stay or leave, and actionable Hook improvements. AI-generated and calibrated with real retention data.
HookCraft Studio turns a topic and source material into a complete, fact-checked faceless-YouTube package — not just a hook. You get: 10 scored titles (top 3 shown), a full script (900-1300 words) with a scroll-stopping hook grounded strictly in your source (no invented facts), a mandatory fact-check pass with a reproducible score, and 5 scored thumbnail-text concepts that don't just repeat the title. Built from a method proven on a live YouTube channel.
You already wrote a hook — spoken line and/or on-screen text. Paste it with your platform (TikTok / Reels / Shorts) and get a 0-10 score on 4 things that decide the first 3 seconds: clarity, curiosity gap, specificity, and pace. Each score gets a one-line reason, plus the single biggest fix and one rewritten version. This only grades a hook you already have — it doesn't generate new hook ideas or a script. For 5+ hooks and a full script from a topic, that's a different agent (Hook Lab).
Said the promo code wrong on camera? That's a reshoot. SponsorCheck checks your sponsored script and caption against the brand brief before you film: promo codes, @handles, links, must-say points, banned claims and #ad placement, with the exact line for every fix.