A free blog-to-social media post generator turns an existing article into short drafts for social platforms. Buffer’s dedicated tool accepts a blog URL or pasted text, lets you choose a channel and tone, and produces three variations: a hook-led post, a summary, and a takeaway. You can start without an account; scheduling and publishing are available through a free Buffer account. The drafts still need a human review before they are ready to post.
What a blog-to-social media generator does
Instead of writing each social post from scratch, you give a generator the article’s URL or text and select a target channel. It condenses the source into shorter copy, sometimes offering different angles to choose from. That makes it a drafting aid, not an automatic publishing decision: you remain responsible for accuracy, context, voice, and the final format.
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Free tools to consider
Buffer: a direct URL-to-post workflow
Buffer’s blog-to-social media post generator is the closest match if you want to start with an existing article. Enter its URL, or paste the text if the page content cannot be extracted. Choose a channel and tone; the tool returns three angles—a hook-led post, a summary, and a takeaway—and says outputs are sized for the selected channel. Buffer lists X, LinkedIn, Threads, Bluesky, Mastodon, and Facebook. It also says long X posts are split into threads.
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1Clear out junk files and repair common Windows errors2Scan for outdated or missing drivers - takes under a minute3Repair Windows errors before they cause bigger problemsBuffer says you can start using this dedicated generator without an account. To schedule and publish drafts from its dashboard, create a free Buffer account. The tool page does not state a daily generation limit, so do not assume limits described for a separate Buffer AI tool apply here.
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Canva: when the post needs a visual too
Canva’s AI social media post generator describes generating copy, including by repurposing blog content, alongside visual design and editing in its editor. The page also mentions scheduling with Content Planner. Check feature availability before relying on a particular workflow: Canva labels Brand Kit and Content Planner as Pro features, so their mention does not mean they are included for free.
HubSpot: for a broader marketing workflow
HubSpot’s AI social tools include drafting and repurposing, including creating posts from blog summaries. Its knowledge base instructions explain using its AI assistant to create social posts. HubSpot also describes reporting across selected channels. This is part of a broader business marketing platform, rather than a like-for-like dedicated blog-URL generator. Review the current plan details to determine which features are available to you.
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How to turn a generated draft into a publishable post
- Start with the article. Paste its URL into the generator. If it cannot read the page, use the paste-text option where offered.
- Choose the destination. Select the social channel and a tone if the tool provides those controls. The channel affects the output’s format and length.
- Check every claim against the article. Remove unsupported details and restore any essential qualifications or context that a short draft left out.
- Rewrite for the audience. Give the opening a reason to keep reading, and make the call to action fit the platform and your goal. Add a visual only when it helps communicate the point.
- Proofread in the publishing interface. Check links, hashtags, line breaks, and final formatting before scheduling or posting.
These checks are editorial safeguards, not a promise that generated posts are accurate or will improve engagement. A concise draft can omit important nuance, so use the original article as the authority.
Which option fits your task?
| Tool | Best fit | What the page describes | Free-use qualification |
|---|---|---|---|
| Buffer | Making several drafts directly from a blog URL or pasted text | Three draft angles, channel and tone selection, and six listed channels | Buffer says the dedicated generator can be started without an account; scheduling and publishing are through a free account. No numeric daily limit is stated on the dedicated tool page. |
| Canva | Combining social copy with visual design and editing | AI-generated social copy, blog-content repurposing, editor publishing, and Content Planner scheduling | Brand Kit and Content Planner are labeled Pro on the feature page; do not assume every described feature is free. |
| HubSpot | Drafting as part of a wider business marketing workflow | AI drafting, posts from blog summaries, and reporting across selected channels | The cited product descriptions do not establish that every feature is free; check current plan details. |
The pages describe product capabilities, not independent head-to-head test results. Choose based on your input method, editing needs, visual workflow, publishing requirements, and whether the necessary features are included in the offering you plan to use.
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