5 free videos, no card
Everything but the publish button.
Describe a niche once and Nichecast writes the script, records the voiceover, renders a captioned 9:16 video and uploads it to your own YouTube channel — unlisted, waiting for you. It takes the 30 minutes of editing and captioning off every video.
No account needed to try the generator. Signing up is what turns a script into a finished, uploaded video.
How one video gets made
Describe the channel
A niche, a style and any rules of your own. You do this once per channel, not once per video.
Nichecast makes it
Script, voiceover, footage, captions, render. Every script is checked before it's recorded.
You press publish
It lands in your YouTube Studio as an unlisted draft. Watch it, change the title or thumbnail, publish when you want.
Nichecast never publishes. Every video arrives unlisted and nobody can find it until you decide. That is deliberate: a channel is yours, and YouTube's own inauthentic-content policy asks that a video made with automated tools still show your creative judgement. Ours is the step where you supply it.
Watch one it made
Nobody should have to sign up to find out what comes out. This is a full run — a niche, one topic, and the file the pipeline handed back.
How Big Is the Sun? — motion graphics explainer, 62 seconds, from a sample channel called Sky in Numbers.
Nichecast made all of it: the script, the voiceover, the captions and the render. Nothing was edited afterwards — it is only re-encoded smaller to sit on this page. On a real channel this same file lands in your YouTube Studio as an unlisted draft, and it stays unlisted until you press publish.
Read the script it wrote
- The Sun is a star, and it holds more than 99.8 percent of all the mass in our solar system.
- Its diameter is about 1.39 million kilometers — roughly 109 times Earth's.
- Line up 109 Earths side by side, and they would just cross the Sun's face.
- If the Sun were hollow, about 1.3 million Earths could fit inside it.
- Every second, the Sun fuses about 600 million metric tons of hydrogen into helium.
- That energy takes about 170,000 years to escape the Sun, then just eight minutes to reach Earth.
- The Sun's surface is about 5,500 degrees Celsius, but its corona reaches millions of degrees.
- So next time you feel sunlight, remember — you're feeling a star 109 times wider than your world.
A different style, same pipeline
Every slide here is drawn from a character you describe once, so it stays the same character all the way through. Videos in this style are declared Made for Kids on YouTube.
Pip and Leo's First Sunflower — kids picture-book story, 39 seconds, from a sample channel called Little Spout.
Nichecast made all of it: the script, the voiceover, the captions and the render. Nothing was edited afterwards — it is only re-encoded smaller to sit on this page. On a real channel this same file lands in your YouTube Studio as an unlisted draft, and it stays unlisted until you press publish.
Read the script it wrote
- Pip holds a tiny sunflower seed in the palm of her hand.
- Her neighbour Leo watches quietly from behind the wooden fence.
- Pip waves and shows Leo the little seed in her hand.
- Leo steps through the gate and holds the seed for the very first time.
- Together they pat the soil down and give it a careful sprinkle of water.
- Every morning they look, but the pot looks the same for many days.
- Then one morning a tiny green shoot pushes up through the dirt.
- The shoot grows taller and taller until it is taller than Leo.
- At last a big golden flower opens wide to face the sun, and Leo smiles and says he wants to plant ten more.
What you keep control of
A content standard on every video
Every script is checked before it's recorded. One that invites viewers to do something harmful is declined and your credit comes back. Footage is matched to the script, and you watch every video before it goes public.
Your own rules, per channel
Tell this channel what to cover, how to sound and what footage to look for. The AI follows it on every video that channel makes.
One reason to hold your YouTube access
Connecting a channel grants access for uploading the videos Nichecast creates for you, and nothing else. Disconnect at any time to revoke it — the privacy policy has the detail.
Script generators by niche
Free, no account — the same script engine that writes the finished videos.