Is this ZST to GZ converter free?

Yes. You can convert ZST to GZ online for free, with no account and no watermark.

Do I need to install software or sign up?

No. The conversion runs entirely in your browser — no installs and no account required.

Why convert to GZ instead of staying with ZST?

GZ is known for being combines and compresses files — that's what you gain by converting instead of keeping the ZST file.

Yes. Files are processed only to complete the conversion and are auto-deleted after 2 hours. We never share them.

Can I convert multiple ZST files at once?

Yes. Drop several files to convert them in a batch and download the results as a single ZIP.

ZST to GZ Converter

Need to convert this file type? Drop it below — or drop any other file and we'll auto-switch. Outputs are auto-deleted after 2 hours; share links expire after 4.

Preset: ZST → GZ · or drop a different file and we'll auto-switch

Drop a file here, or click to browse

PDF · Word · Excel · JSON · XML · Images · Video · Audio · Archives · CAD · 3D

Maximum file size: 100 MB.

Or paste a link to a file

Drop multiple images to combine them into one PDF, Word document, or PowerPoint presentation — or convert each image separately.

Drop

Drag your ZST file or click to browse.

Convert

GZ is preselected, or pick a different format below.

Download

Get your file or share a 1-hour link.

Convert ZST to GZ online

Use this ZST to GZ converter to turn ZST files into GZ right in your browser — ideal for bundling files, compression and downloads. GZ is valued for being combines and compresses files, while ZST comes with a tradeoff: needs an extractor to open.

When should you convert ZST to GZ?

To bundle files into an archive before downloading
To get GZ's built-in advantage: combines and compresses files
To move past ZST's common limitation: needs an extractor to open
To open your files in apps that prefer GZ

About ZST and GZ files

ZST archive

Strengths

combines and compresses files

Limitations

needs an extractor to open

GZ archive

Strengths

combines and compresses files

Limitations

needs an extractor to open

ZST vs GZ

Format	ZST	GZ
Compression	—	—
Transparency	—	—
Best for	bundling files and compression	bundling files and compression

Related tools

GZ to ZST Converter

Frequently asked questions

Is this ZST to GZ converter free?: Yes. You can convert ZST to GZ online for free, with no account and no watermark.
Do I need to install software or sign up?: No. The conversion runs entirely in your browser — no installs and no account required.
Why convert to GZ instead of staying with ZST?: GZ is known for being combines and compresses files — that's what you gain by converting instead of keeping the ZST file.
Are my files safe?: Yes. Files are processed only to complete the conversion and are auto-deleted after 2 hours. We never share them.
Can I convert multiple ZST files at once?: Yes. Drop several files to convert them in a batch and download the results as a single ZIP.