VERT is an open-source file converter powered by WebAssembly that processes everything locally in your browser. No uploads, no sign-up, full privacy, supports images, docs, video & audio.

🌟 No upload, no registration—convert any file format right in your browser.
In daily work and study, we often need to convert files from one format to another—whether it's turning a PDF into a Word document, converting images from PNG to JPG, or compressing video files to a smaller size. Traditional solutions usually require you to upload files to cloud servers, which is not only time-consuming but also carries the risk of privacy leakage.

Today, we're introducing a revolutionary tool—VERT. It leverages WebAssembly technology to complete all file conversion operations locally on your device, without relying on cloud services, ensuring privacy and security for your files.


🚀 What is VERT?

VERT is an open-source local file conversion tool, built on modern web technologies Svelte and TypeScript. Its core philosophy is: file conversion should not come at the cost of user privacy.

Unlike traditional file conversion tools, VERT never uploads your files to any remote server. All conversion processes are performed locally in your browser through WebAssembly technology, which means your sensitive files always stay on your device, giving you 100% privacy protection.


✨ VERT's Core Features

VERT is feature-rich and practical, covering most daily file conversion needs:

📸 Multi-Format Support

  • 🖼️ Image Conversion: Supports mutual conversion between common image formats such as JPEG, PNG, WebP, and AVIF
  • 📄 Document Conversion: Supports conversion of PDF, DOCX, Markdown, HTML, and other document formats
  • 🎬 Video Conversion: Supports conversion and compression of MP4, MOV, AVI, and other video formats
  • 🎵 Audio Conversion: Supports conversion of MP3, WAV, OGG, and other audio formats

🔐 Fully Local Processing

VERT leverages WebAssembly technology to complete all file conversion processes locally in the browser. This brings multiple advantages:

  • 🛡️ Privacy Protection: Your files never leave your device; sensitive information is not stored on third-party servers
  • 📏 No Size Limits: Unlike many online conversion tools that have file size limits, VERT can handle files of any size
  • 🌐 No Internet Required: Once the page is loaded, conversion can be done offline

⚡ High Performance & Open Source

  • 🚀 Efficient Conversion: WebAssembly-based conversion modules run at near-native efficiency
  • 💝 Completely Free: VERT is an open-source project licensed under AGPL-3.0, completely free to use
  • 📺 No Ads: Unlike many online conversion tools, VERT has a clean interface with absolutely no ads

💻 Cross-Platform Compatibility

Since VERT is built on web technology, it runs in any modern browser, including Chrome, Firefox, Safari, and Edge—whether on Windows, macOS, or Linux.


🛠️ How to Use VERT

Using VERT is very simple; even users unfamiliar with technology can quickly get started:

🔄 Basic Conversion Operations

  • 🌐 Visit the Official Website: Open https://vert.sh/ in your browser
  • 📁 Select File: Click the "Select File" button to upload the file you want to convert
  • 🎯 Choose Target Format: Select your desired target format from the format list
  • ⚡ Start Conversion: Click the "Convert" button, and VERT will process the file locally
  • 💾 Download Result: Once conversion is complete, download the converted file

🎨 Advanced Usage Tips

While VERT is very simple to use at its core, mastering a few tips can enhance your experience:

  • 📦 Batch Processing: Select multiple files at once for batch conversion, saving time
  • 🎚️ Quality Adjustment: For image and video conversions, adjust output quality to balance file size and clarity
  • ⚙️ Format Presets: Choose different optimized presets for different purposes (e.g., web publishing, printing)
  • 🔧 Custom Settings: Advanced users can fine-tune conversion parameters to meet specific needs

📊 VERT vs. Other Tools

To clearly demonstrate VERT's advantages, let's compare it with several common file conversion tools:

Tool TypeRepresentative ToolsPrivacyCostFile Size LimitInternet Required
🏠 Local AppsAdobe Suite, Format FactoryHighUsually PaidNoneNo
☁️ Online ServicesCloudConvert, ZamzarLowFree/SubscriptionYesYes
🎯 VERT-Extremely HighCompletely FreeNoneInitial Load Only

As shown in the table above, VERT has clear advantages in privacy protection and cost, combining the security of local applications with the convenience of online tools.

💫 VERT's Unique Advantages

  • 🔧 No Installation Required: Unlike traditional desktop applications, VERT requires no complex installation—just open the browser
  • 👤 No Registration: Unlike many online services that require account creation, VERT respects user anonymity
  • 🔄 Continuous Updates: As an open-source project, VERT constantly adds new format support and feature improvements
  • 👥 Community-Driven: The project is openly developed on GitHub; users can contribute feature suggestions and bug reports

💿 Installing and Deploying VERT

For most users, simply visiting the official website https://vert.sh/ is all you need—no installation required. However, for advanced users who want to self-host or contribute code, VERT also offers flexible deployment options.

🌐 Direct Use (Recommended for Most Users)

Just visit the official website https://vert.sh/ to start using it—no software download or installation needed.

🖥️ Local Deployment

If you want to deploy VERT on your own server, refer to the following steps:

  • 📥 Clone the Repository:
git clone https://github.com/VERT-sh/VERT.git
  • 📦 Install Dependencies:
cd VERT
npm install
  • 🔨 Build the Project:
npm run build
  • 🚀 Start the Service:
npm start

🐳 Docker Deployment (Recommended for Servers)

VERT supports one-click deployment via Docker—the simplest and fastest deployment method:

docker run -p 80:80 vertsh/vert

💻 System Requirements

VERT runs on any device that supports a modern browser, including:

  • 🖥️ Desktop Devices: Windows, macOS, or Linux systems with the latest version of Chrome, Firefox, Safari, or Edge installed
  • 📱 Mobile Devices: iOS or Android devices using a mobile browser that supports WebAssembly

🎯 Conclusion

In an era where data privacy is increasingly valued, VERT provides us with a safe, efficient, and free file conversion solution. It fully unleashes the potential of modern web technology, proving that browsers can already handle quite complex computational tasks without relying on cloud servers.

Whether you're a privacy-conscious user or a professional who frequently handles file conversions, VERT is worth a try. Its simplicity, powerful features, and impeccable privacy protection philosophy make it a disruptor in the file conversion space.

Next time you need to convert a file, consider skipping those online tools that ask you to upload files to unknown servers, and try VERT to experience truly safe and private file conversion.


🔗 Visit VERT: https://vert.sh/ | 🐙 Explore Source Code: https://github.com/VERT-sh/VERT


Note: This is the English translation of the original Chinese version.