MultiPost-Extension

MultiPost-Extension is a free, open-source browser extension that lets you publish text, images, and videos to over 10 social media platforms with one click — no login, registration, or API key required.

What is MultiPost-Extension?

MultiPost-Extension is a browser extension developed by leaperone on GitHub that enables one-click content publishing to multiple social media platforms. It takes content (text, images, videos) as input and posts it to platforms such as Zhihu, Weibo, Xiaohongshu, TikTok, and YouTube. The extension runs on Chromium-based browsers and is available on the Chrome Web Store and Microsoft Edge Add-ons. It is fully open source under the Apache-2.0 license.

Key Features

• One-click multi-platform publishing — Post content to 10+ platforms simultaneously (including Zhihu, Weibo, Xiaohongshu, TikTok, YouTube, and more) via the browser extension.
• Two API interfaces — Use the Extension API to call publishing functions from your own web app, or the RESTful API to trigger posts from scripts or servers.
• Free and open source — No cost, no registration, no API key needed. The source code is available on GitHub with over 2,800 stars and 308 forks.
• Multi-type content support — Publish text, images, and videos; the extension handles media upload and formatting.
• Web-based article editor — MultiPost Article Editor lets you compose content online and publish directly to multiple platforms.
• Active development — 43 releases (latest v1.4.3), with frequent updates and community contributions via Discord and WeChat.

Who is it for?

• Content creators — Bloggers, video creators, and influencers who need to share the same content across multiple social accounts quickly.
• Social media marketers — Marketing teams managing brand presence across platforms can automate posting and maintain consistent messaging.
• Developers — Those who want to integrate multi-platform publishing into their own tools using the Extension API or RESTful API, enabling scheduled posts, AI-generated content pipelines, or custom workflows.

What can you do with MultiPost-Extension?

• Batch publish across platforms — Write or upload content once and distribute it to all connected social networks simultaneously.
• Automate posting via API — Use the RESTful API to trigger posts from cron jobs or server-side scripts, ideal for scheduled content.
• Build custom publishing tools — Integrate the Extension API into your own web app to offer one-click publishing as a feature for users.

How does it work?

After installing the extension from the Chrome Web Store or Edge Add-ons, navigate to any supported platform’s publishing page. The extension detects the page and injects a popup where you can compose or paste your content, attach media, and choose which platforms to publish to. For automation, use the RESTful API by sending HTTP requests to the extension’s endpoint with your content and target platform parameters.

Pricing

MultiPost-Extension is completely free to use. There are no paid tiers, subscription fees, or hidden charges. All features, including the APIs, are available without cost.

FAQ

Is MultiPost-Extension really free?

Yes, the extension is free and open source. You do not need to pay, register an account, or provide an API key. The project is funded by community support and contributions.

What platforms does it support?

It supports over 10 platforms including Zhihu, Weibo, Xiaohongshu, TikTok, YouTube, and more. The specific list is maintained in the GitHub repository and documentation at docs.multipost.app.

Do I need an API key to use the RESTful API?

No, the RESTful API requires no external API keys. The extension handles authentication and posting directly through your browser’s logged-in sessions on each platform. This means you must be logged into the target platforms in your browser for the extension to work.