OnceCast — cast it once, it goes everywhere
OnceCast is an all-in-one tool for content creators. Cut one video into
clips, post them to every platform in one press, and answer your comments with AI drafts
you approve. There is a free plan and it needs no card.
What it does
- Free clip splitter — turn a long video into ready-to-post clips
(9:16 for TikTok, Reels and Shorts, 1:1, or 16:9). The cutting happens in your own
browser, so your video is never uploaded. No account needed.
How the free splitter works.
- Send everywhere — one press posts a finished clip to Instagram,
YouTube and TikTok at once, instead of uploading to each app by hand.
- One comment inbox — your YouTube and Instagram comments in a single
feed, each with a reply drafted in your own voice. You approve, edit or skip. Nothing
is ever posted automatically.
- Scheduling — set a time and OnceCast publishes for you, with your
computer off. Failed posts show an error and a retry button rather than failing silently.
- Content coach — describe what you make in one line and get a week of
specific posts, each with the opening hook written out.
- AI captions, titles, hashtags and newsletters — written in your voice,
only when you press the button.
- YouTube thumbnail maker — grab a frame, add big hook text, export 1280×720.
Pricing
- Free — £0, no card. The clip splitter, AI comment replies and a taste
of every tool. Clips carry a small "Made with oncecast.app" tag.
- Creator — £19/month. Unlimited AI replies and drafts, the full clips
and optimise suite, newsletter sending, and clean exports with no tag.
- Studio — £49/month. Everything in Creator, plus multiple channels and
bulk replies.
- Agency — £99/month. Client accounts, team seats and a separate voice
per client.
Annual billing is two months free. You can cancel in one click and keep access until the
end of the period you have paid for.
How it is different
- Your video stays on your device. Clip cutting and auto-captions run in
your browser — no upload, no queue.
- You approve everything. The AI drafts; it never posts on its own.
- One tool instead of five subscriptions — clipping, scheduling, comment
replies and email in one place.
Live platforms: Instagram, YouTube, TikTok, Bluesky and Mastodon.
Facebook and Threads are built and awaiting platform review.
Common questions
What is OnceCast?
A web app for content creators. It cuts one video into short clips, posts them to
Instagram, YouTube and TikTok in a single press, and drafts replies to your comments in
your own voice for you to approve.
Is OnceCast free?
There is a free plan with no card required. The clip splitter is free forever and does not
even need an account. Paid plans start at £19/month.
Do I have to upload my video?
Not to split it. Clip cutting and auto-captions run inside your own browser, so the video
never leaves your device. It is only uploaded if you choose to post or schedule it.
Which platforms can OnceCast post to?
Instagram, YouTube, TikTok, Bluesky and Mastodon are live. Facebook and Threads are built
and awaiting Meta's app review.
Does it post on its own?
No. The AI drafts and suggests; you approve or schedule everything. There is no mode that
invents content and publishes it without you.
Can I cancel easily?
Yes — one click from the Billing page. You keep access until the end of the period you have
already paid for.
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The free splitter is explained here ·
llms.txt
ONCECAST LTD, registered in England and Wales,
company no. 17460249. Registered office: 128 City Road, London EC1V 2NX.
Contact: hello@oncecast.app