💬 YouTube Comment Craftsman — a transcript in, 3 grounded comment drafts out. No links, no "great video!". Free, runs on GLM. More free tools →
Broke to Built · lab
YouTube Comment Craftsman

Paste a video's transcript or description and get three comment drafts in three fixed tones — the addition (extends the video with one verifiable angle), the builder take (honest practitioner's perspective), and the earned laugh (playful, grounded in a real detail). A validator enforces the craft rules on every draft: ≤60 words, zero links, zero self-promo, zero generic praise, and each one must reference a specific detail from what you pasted. We built it because we run the same craft daily on our own channel.

0 / 200 characters minimum
~6s on the free model · nothing is posted anywhere — you get drafts to copy.
paste a title + transcript and hit Craft 3 comments.
No drafts yet
Paste a transcript (or load the sample) and hit Craft 3 comments.
Every draft is machine-checked against the craft rules before you see it.
The craft rules every draft is checked against: ≤60 words · zero links or domains · zero @handles or hashtags · zero self-promo ("check out my channel" is how comments die) · zero generic praise ("great video!" is banned) · must reference at least one specific detail from the text you pasted. A comment that could sit under any video fails the gate.
Drafting for lots of videos? (free, optional)

You can run 40 crafts a day for free — plenty for a daily commenting habit. If you'd like unlimited, plug in your own free key from the AI service we use; it's optional and stored only on your device. Grab a free key here (our referral) →

Runs for $0 on GLM's free model. Why we built it: we leave comments like these every day from our own channel — the three tones and the hard rules are the exact checklist we use, encoded so the output can't drift into spam. These are drafts: read the draft, make sure the "grounded on" quote is really what the video said, edit into your own voice, then post it yourself. No sign-up, no catch, nothing is auto-posted.