How to Auto Post Website Videos to Threads

You already have a website that explains your product. What you don't have is the 45 minutes a day it takes to turn that website into a Threads post, write a caption, and hit publish, so your Threads account sits quiet while competitors show up in the feed daily.

That's the exact bottleneck website-to-video automation removes. You add your website URL, and Vlozy reads the public site, builds a brand brief, then creates the videos, the music, the captions, and the posts, no filming, no editing timeline, no manual caption writing.

In this guide you'll learn what auto posting website videos to Threads actually means, the no-code path that goes from URL to published post, and the API path for teams that want to wire it into Make.com or n8n. Stick around for the part where a 500-character caption gets written for you, that detail changes how often you can realistically post.

What Auto Post Website Videos to Threads Actually Means

Auto posting website videos to Threads is a four-stage pipeline: a website URL becomes a brand brief, the brief becomes a vertical video, the video gets a 500-character caption, and the post goes live on Threads, all without you opening a video editor or writing a single line of copy.

Think of it like a conveyor belt at a bakery. You drop in raw dough, your website URL, at one end. The machine kneads it into a brand brief (offer, audience, tone), shapes it into a vertical video, wraps it in a caption, and slides a finished Threads post out the other end. You never touch the dough.

At the simple level, this means a tool reads your public site and produces one video post. At the intermediate level, it means the caption is generated to match Threads' 500-character limit and the video is formatted vertically for the feed. At the advanced level, the pipeline repeats every 14 days, more of what worked, plus new variations, so your Threads presence compounds without your involvement.

The key shift most tutorials miss: your website is the source, not the destination. You're not driving Threads traffic back to a landing page as the primary goal. You're using the website as raw material, the offer, the tone, the audience signals already baked into your copy, and letting automation turn that material into daily feed presence. The website feeds the pipeline; Threads is where the finished product lands.

The No-Code Path: Website URL to Threads Post

Vlozy turns a website URL into a published Threads post in one connected flow, no API credentials, no Zapier account, no manual caption writing. Here's the exact sequence.

1. Add your website URL. Open Vlozy and paste your site's public URL into the input field. Click Add website. Vlozy reads the public pages, your homepage, features, pricing, about, and extracts the offer, audience, and tone. You should see a brand brief appear within minutes, summarizing what your site sells, who it's for, and how it sounds.
2. Review the brand brief. Check the offer, audience, and tone Vlozy built from your site. Edit any section that feels off, the brief is the source material for every video that follows. This step takes under five minutes and only happens once.
3. Let Vlozy create the vertical video. From the brief, Vlozy produces a short-form vertical video with music and captions already applied. You don't film anything, you don't touch a timeline, and you don't score music. The video arrives formatted for the Threads feed.
4. Watch the 500-character caption get written. Vlozy writes the caption to fit Threads' 500-character limit, matched to the video's content and your brand tone. This is the step most competitor tutorials skip, the caption isn't an afterthought, it's generated alongside the video so the post is complete when it reaches you.
5. Approve and publish to Threads. Review the video and caption, then confirm the post. Vlozy publishes to Threads automatically, no manual upload, no copy-paste, no scheduling tool in between. You should see the post live in your Threads feed within minutes.

From there, the loop repeats every 14 days. Vlozy pushes more of what worked and still tries new variations, so your Threads presence stays consistent without you rebuilding the pipeline each time. That's the core promise: turn your website into short-form videos and let the automation handle the publishing cadence.

If you'd rather wire this into your own stack, the API path with Make.com and n8n gives you the same pipeline with manual control over each step.

The API Path: Make.com and n8n for Threads Video Automation

The API path gives you full control over what gets posted to Threads, but it comes with real setup and maintenance costs. If you are comfortable with webhooks, OAuth tokens, and JSON payloads, Make.com and n8n both connect to the Threads API and can push a video plus caption on a schedule.

What you need: Threads API credentials, a video source, and a caption source. The Threads API accepts a video URL or binary file, a caption string up to 500 characters, and a container ID that you publish in a second API call. Both Make.com and n8n have prebuilt Threads modules, so you do not write raw HTTP requests from scratch.

Why the API path breaks when your website changes: the workflow is only as current as the data you feed it. If you hardcode a product name, a pricing line, or a feature list into the caption template, and your website updates that information, the automation keeps posting the old copy until you manually edit the scenario. A no-code tool that re-reads your site on every cycle avoids this drift.

Factor	Make.com	n8n
Setup style	Visual drag-and-drop builder, hosted	Visual builder, self-hosted or cloud
Threads API support	Native module	Native node
Caption source	You supply it (spreadsheet, RSS, form)	You supply it (database, webhook, file)
Video source	URL or uploaded file	URL or uploaded file
Maintenance when site changes	Manual edits to scenario	Manual edits to workflow
Best for	Marketers who want a hosted tool with minimal infrastructure	Developers who want self-hosting and full data control

Make.com is the stronger pick for a solo marketer who wants a visual builder without managing a server. n8n wins for technical teams that already run self-hosted infrastructure and want workflows versioned in Git alongside their code.

Threads Video Specs and the 500-Character Caption Limit

Threads accepts vertical videos up to 5 minutes long, with a 9:16 aspect ratio recommended for feed-native display, and a caption capped at 500 characters. Getting these three constraints right determines whether your auto-posted video looks native or gets cropped and truncated.

1. Vertical video at 9:16 aspect ratio. Threads displays vertical video full-bleed in the mobile feed, so a 1080×1920 canvas is the safe target. If you upload a 16:9 landscape video, Threads letterboxes it and the post looks smaller in the feed, which reduces watch time and engagement.
2. Resolution of 1080×1920 or higher. Threads compresses uploads, so starting at 1080p or above preserves sharpness after processing. A 720p source will look noticeably softer once Threads re-encodes it, especially on larger phone screens.
3. Duration up to 5 minutes. Threads supports videos from a few seconds up to 5 minutes, which covers everything from a 15-second hook clip to a full product walkthrough. Short-form videos in the 15-60 second range tend to perform best for brand awareness, but the ceiling gives you room for tutorials.
4. Caption limit of 500 characters. The caption is the text that appears above the video in the feed, and Threads hard-stops at 500 characters. This is roughly 80-100 words, so the caption must carry the hook and the call to action without rambling.
5. What happens when the caption is too long. Threads truncates the caption at the 500-character mark and the rest is simply not posted. There is no "read more" expansion on Threads, so anything past the limit is invisible to your audience and wasted copy.
6. Hashtags count toward the limit. Every hashtag you add consumes caption characters, and Threads recommends 1-3 relevant tags rather than a wall of them. Three hashtags at 15 characters each is 45 characters, or 9% of your entire caption budget.
7. The caption and video work as one unit. The caption is the first thing a viewer reads before the video plays, so it should state the promise the video delivers. A strong pattern is: hook in the first line, one supporting line, then a single call to action with a link or handle.

If you are automating captions from website content, the 500-character ceiling is the constraint that forces discipline. A product page with a 200-word description cannot be pasted wholesale into a Threads caption; the automation must distill the offer into a hook, a benefit, and a CTA that fits under the limit. Tools that generate captions from a brand brief handle this compression automatically, while manual workflows require you to rewrite every caption by hand.

No-Code vs API vs Manual: Which Path Should You Choose?

The right path depends on how much time you want to spend maintaining the pipeline, not just building it. All three approaches can get a website video onto Threads; they differ sharply in ongoing effort.

Factor	No-code automation	API workflow (Make.com / n8n)	Manual posting
Setup time	Minutes: add URL, connect Threads	Hours: credentials, scenario, testing	Zero setup, but every post takes time
Technical skill	None required	Intermediate to advanced	None required
Ongoing effort	Low: tool re-reads site and posts	Medium: update workflows when site changes	High: film, edit, caption, post every time
Caption handling	Generated from brand brief	You supply and maintain templates	You write every caption
Best for	Founders and small teams who want consistency without a content hire	Technical teams that need custom data flows and self-hosting	Creators who want full control over every frame and word

Manual posting is the right choice for a creator who posts once a week and wants hands-on control. The API path suits a developer who already runs n8n and needs Threads as one node in a larger automation. No-code automation fits the founder who has a website, wants daily Threads presence, and has no time to maintain either of the other two paths.

If your goal is a Threads feed that stays current with your product without weekly maintenance, the no-code route removes the two failure points that kill the other options: manual caption writing and stale API templates. That trade-off is exactly what the next section addresses.

FAQ: Auto Posting Website Videos to Threads

Direct answers to the questions founders and marketers ask most about automating website-to-Threads video publishing.

Can I post a video to Threads without manually uploading it?

Yes. You can auto-post videos to Threads through the Threads API using a tool like Make.com, n8n, or Vlozy. These tools send the video file and caption to Threads on a schedule, so you never open the app or drag a file into a composer.

Do I need the Threads API to auto-post videos?

Yes, for true automation you need the Threads API. Manual posting requires the app, but any scheduled or triggered workflow uses the API through a no-code connector or a direct integration. Vlozy handles the API connection for you, so no developer setup is required.

What happens to my caption when Threads limits it to 500 characters?

Threads truncates captions at 500 characters. If your generated caption is longer, the platform cuts it off mid-sentence. Vlozy generates captions under the limit automatically, so the full message, hashtags, and call to action publish intact.

Can I auto-post the same video to Threads and TikTok?

Yes. Threads and TikTok both accept vertical short-form video, so one file can publish to both. You need separate API connections for each platform, but tools like Vlozy handle multi-channel publishing from a single source video without reformatting.

How often should I auto-post website videos to Threads?

Daily posting works best for Threads growth. The platform rewards consistent accounts, and a daily cadence keeps your brand in the feed. Vlozy pushes new variations every 14 days, so you can publish to Threads automatically without burning out.

Start With One Website URL and Let the Pipeline Run

Every path in this guide leads to the same conclusion: the bottleneck was never the video. It was the manual loop of uploading, captioning, and scheduling. Once you remove that loop, Threads stops being a chore and starts behaving like a distribution channel you already own.

The no-code path gets you publishing today. The API path gives you control. Either way, the first step is the same: turn your website into short-form videos and let the system handle the rest. If you prefer the manual route, read the Threads API docs and build your own connector.

Your website already contains the offer, the audience, and the tone. The only missing piece was the pipeline. Now it exists.