RunConvert

VSTX Converter

Convert files to and from VSTX online for free. Fast, secure, and high-quality file conversion with no sign-up or software required.

Free to useNo file stored beyond 1 hourEncrypted over TLS 1.2/1.3No watermarks

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How it works

Three steps to your converted file

Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.

01

Upload your file

Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.

02

Choose an output format

Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.

03

Convert & download

Hit Convert and grab your download link moments later. Originals are erased when the job completes; results are cleared within about an hour.

What is a VSTX file?

VSTX is the standard, macro-free template file for Microsoft Visio 2013+, replacing the binary VST format. It relies on the ZIP-compressed XML structure (Open Packaging Conventions) to store layout configurations, styles, and themes that serve as a starting point for new diagrams. The format is chemically distinct from VSDX drawings only in its content type property, which signals the application to generate a copy rather than open the original file.

How to open a VSTX file

Double-clicking a VSTX file in Windows with Microsoft Visio installed triggers the creation of a new drawing based on the template. On non-Windows platforms, OmniGraffle (macOS) and LibreOffice Draw (multi-platform) can import the static template data, though specific formatting properties like complex data binding may be lost during conversion.

VSTX Technical Info

Full Name
Visio Template
Developed By
Microsoft
Initial Release
2013
MIME Type
application/vnd.ms-visio.template.main+xml

Why RunConvert

The fastest way to convert any file

Purpose-built for speed, privacy, and breadth of format support.

3,000+ conversions supported

Every popular and niche format covered - video, audio, image, document, archive and more. New formats added regularly.

Fast, cloud-powered

No queue, no waiting. Files are processed on high-performance servers and returned in seconds, even for large files.

Secure & private

Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.

Free - no account needed

Convert without creating an account - no credit card, no trial clock. Sign in only if you want history and higher daily limits.