How to Turn One Long Video Into Shorts, Posts and a Blog

AI video repurposing means using AI to do the slow parts of turning one long video (a YouTube video, webinar, interview or livestream) into many smaller pieces. The AI transcribes the video, finds the strongest moments, cuts them into vertical clips with captions, and drafts written pieces such as a blog post, an X thread, LinkedIn posts or a newsletter from the transcript. You still choose what to keep and edit the result.

Two kinds of tools do this work, and most creators need one of each:

• Clip tools turn video into shorter video: they pick moments, reframe them to 9:16 and add captions for YouTube Shorts, Instagram Reels and TikTok.
• Text tools turn video into writing: they summarize the video and draft blog posts, threads, newsletters and scripts from it.

This guide walks through the workflow step by step. If you’re still choosing software, our comparison of AI content repurposing tools covers clip, text, audio and design tools side by side. If you’re new to the idea itself, start with what content repurposing is.

What One Long Video Can Become

A 20–60 minute video with plenty of talking (a tutorial, interview, podcast recording or webinar) gives you the most material. Here’s what it can turn into and which kind of tool does the heavy lifting:

For more formats beyond video, see 30 creative ways to repurpose content.

Step 1: Pick a Video Worth Repurposing

Start with a video that already did well or that answers a question people keep asking. Low-performing videos rarely turn into high-performing clips.

Videos with clear spoken points work best, because both clip tools and text tools rely on the speech. A webinar, tutorial, interview or product demo usually gives better results than a music video or a mostly visual vlog.

Make sure you have the right to reuse it. Your own videos are fine. If you want to work with someone else’s video, read how to repurpose other people’s content first.

Step 2: Get an Accurate Transcript

Everything else is built on the transcript, so check it before you generate anything. Look for misheard names, product names, numbers and jargon. If YouTube hasn’t produced one, here’s how to generate a transcript from a YouTube video.

While you read it, mark three things: the main argument, the moments that stand on their own (a strong opinion, a tip, a story with a punchline) and any lines worth quoting. These become your clips, posts and quote cards.

Step 3: Cut Vertical Clips for Shorts, Reels and TikTok

Short-form video is where most people start, and it’s where AI clip tools save the most time. Upload the long video (or paste its link), and the tool suggests clips, reframes them to vertical 9:16 so the speaker stays in shot, and adds captions you can restyle.

A few options:

• YouTube’s own Clips and Shorts tool (free, in YouTube Studio) cuts segments from your long video and publishes them as Shorts linked back to the original. AI-suggested segments are available in 10 countries, including the US, UK, Canada and India, and 7 languages.
• OpusClip picks moments, reframes them, adds animated captions and can post straight to YouTube Shorts, TikTok and Instagram Reels. Its free plan covers 60 minutes of video a month, with a watermark.
• Descript suits you if you already edit the full video there: Create Clips pulls short clips from the same project.

quso.ai (formerly Vidyo.ai) and Async are other clip tools worth a look. For editing, thumbnail and caption tools beyond clipping, see our guide to AI tools for YouTube creators.

Before you publish a clip:

• Check the hook. The first few seconds decide whether people keep watching. If the AI starts mid-sentence or on a weak line, trim it.
• Make sure it stands alone. A clip that relies on something said earlier confuses new viewers.
• Fix the captions. Auto-captions often get names and numbers wrong, and captions are all that viewers watching with the sound off will see.
• Respect the length limits. Export vertical (9:16) clips. YouTube Shorts can be up to 3 minutes long, and Instagram raised the Reels limit to 3 minutes in January 2025, but shorter clips are easier to keep tight.

Step 4: Turn the Transcript Into Written Posts

This is the step clip tools mostly skip, and it’s where a lot of a video’s value sits: people who would never watch a 40-minute video will read a 1,000-word article or a short thread.

Text tools such as TubeOnAI work from the video link. Here’s how it works there:

1. Create an account. Sign up for a free account with TubeOnAI (Google sign-in works too).

2. Add the video. Paste a YouTube link (other video sites and uploaded files also work, though availability varies by site). TubeOnAI summarizes it, even if the video has no transcript.

3. Pick an output. Choose one of the 150+ repurposing templates (blog post, X thread, email newsletter, LinkedIn post) or write a custom prompt. You can ask follow-up questions about the video first if you want to dig into one section.

4. Edit the draft. Add your own examples, fix the tone and check every fact against the video.

A few prompts that work well with any text tool:

• Blog post: “Turn this video into a 1,000-word article with an intro that answers [question], H2 headings for each main point, and a short summary at the end.” Our guide on turning a video into a blog post covers outlining, SEO and embedding the video in more detail.
• X thread: “Write a 6-post thread from the three most surprising points in this video. First post is the hook; last post links to the video.”
• LinkedIn post: “Write a 150-word LinkedIn post from the main lesson in this video, in first person, with one question at the end.”
• Newsletter: “Write a short email with the three key takeaways from this video and a link to watch it.” For a ready-made option, try the YouTube to newsletter generator.

Step 5: Make Audio and Visual Spin-offs

Two more formats come almost free once you have the transcript and key points:

• Podcast episode. If the video is mostly conversation, its audio can be published as an episode. For a more polished version, draft a podcast script from the video with a custom prompt and record a new intro and outro.
• Quote cards, carousels and infographics. Take the lines and steps you marked in Step 2 and lay them out in a design tool such as Canva. Steps and statistics make good infographics for LinkedIn, Instagram and Pinterest.

You can also break one long educational video into a series of shorter scripts, one lesson per video, so a single recording seeds several new uploads.

Step 6: Review Before You Publish

AI saves time on drafts; it doesn’t replace a final read. For every piece:

• Check names, numbers and claims against the original video. Summaries can drop context or merge two points into one.
• Make it sound like you. Generic AI phrasing is easy to spot, especially on LinkedIn and in newsletters.
• If you add AI-generated footage or voices that look or sound real, disclose it. On YouTube, that means selecting “Yes” for the “AI use” setting when you upload. Using AI only for scripts, captions, titles or thumbnails doesn’t need disclosure.

Step 7: Schedule, Then Measure

Don’t post everything on the same day. Spread clips and posts over two to four weeks and point each one back to the full video.

If you post the same clip to several platforms, a distribution tool such as Repurpose.io can republish it from one platform to the others automatically, so you don’t upload each one by hand.

After a few weeks, compare formats. If clips bring in more views and subscribers than threads, put more effort into clips next time, and drop formats that don’t move anything.

Where TubeOnAI Fits

TubeOnAI handles the written side of this workflow: it summarizes a video (or podcast, article or PDF) and turns it into blog posts, X threads, newsletters, LinkedIn content and scripts, with translation into 30+ languages. Collections let you keep source videos together and repurpose them in bulk, and channel subscriptions can auto-import new uploads from YouTube channels you follow.

It doesn’t cut video clips, so pair it with a clip tool (or YouTube’s own Shorts editor) for Step 3. The free Starter plan includes 400 credits; paid plans start at $9/month (as of October 2026). See pricing for details.

FAQ

Can you repurpose any type of video content with AI?

Most videos with clear speech work well: tutorials, interviews, webinars, podcasts recorded on video and product demos. Clip tools and text tools both depend on what’s said, so music videos or videos that are mostly visuals give the AI much less to work with.

Can AI cut a long video into Shorts automatically?

Yes. Clip tools such as OpusClip, quso.ai and Descript pick moments, reframe them to vertical and add captions, and YouTube Studio’s own Clips and Shorts tool suggests segments in some countries. Review each clip before posting, because the AI doesn’t always pick the right start and end.

How accurate is AI at repurposing video content?

Good enough for a first draft, not for publishing unchecked. Transcripts can mishear names and numbers, and summaries can lose nuance, so review every piece against the original video before it goes out.

Can AI repurpose videos in different languages?

Yes. TubeOnAI, for example, translates summaries and repurposed content into 30+ languages. YouTube’s auto dubbing can also add dubbed audio tracks to your videos in 27 languages.

How long does it take to repurpose a video with AI?

The AI part usually takes minutes, depending on the video’s length and the number of outputs. Reviewing and editing takes longer, and it’s the part worth spending time on.