Free online GRAPHML to GRAPHMLZ converter
Convert GraphML to compressed GraphMLZ with yEd or in your browser.
Convert GRAPHML to GRAPHMLZ online - free
Your file is processed instantly and never stored on our servers.
How to convert graphml to graphmlz file
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Source format: GraphML
GraphML is an XML-based file format for describing graphs, including nodes, edges, attributes, and metadata. It is widely used in graph visualization, network analysis, academic research, and software tools such as yEd and Gephi. Because it is plain XML, GraphML files are often readable in a text editor and are commonly used to exchange graph structures between programs.
Target format: GraphMLZ
GraphMLZ is a compressed version of GraphML. It stores the same graph data in a compressed package, which can reduce file size and make large graphs easier to transfer or archive. This format is especially useful when working with graph editors that support compressed GraphML directly.
How to convert GraphML to GraphMLZ
The most reliable way to convert GraphML to GraphMLZ is with a desktop graph editor that supports both formats, especially yEd Graph Editor.
- Open the GraphML file in yEd.
- Check that the graph loads correctly and that nodes, edges, labels, and styles appear as expected.
- Choose File → Save As.
- Select GraphMLZ as the output format.
- Save the file with a
.graphmlzextension.
If you only need a quick conversion and do not want to install software, you can convert the file on 101convert.com for free, directly in the browser.
For batch workflows or automation, some graph-processing tools and scripts may be able to create compressed GraphML packages, but support varies by application. In most cases, yEd is the simplest option for preserving graph structure and metadata.
Compatibility and limitations
GraphMLZ is typically a lossless compressed packaging of GraphML content, so the graph data itself should remain unchanged after conversion. However, compatibility depends on the target software: not every graph tool can open GraphMLZ, while plain GraphML is more broadly supported.
If your graph contains custom attributes, embedded styles, or application-specific extensions, verify the result after conversion to make sure the receiving program interprets them correctly. Because GraphMLZ is compressed, it is less convenient for manual editing than plain XML-based GraphML.
Suggested software and links: graphml to graphmlz converters
Frequently asked questions
Is the GRAPHML to GRAPHMLZ converter free?
Yes, converting GRAPHML to GRAPHMLZ on 101convert.com is completely free. No registration, email address or installation is required.
How large can my GRAPHML file be?
You can upload GRAPHML files up to 50 MB and convert up to 50 files at once in a single batch.
What happens to my uploaded files?
Files are processed automatically and deleted from our servers within a few minutes after conversion. We never view or share your files.
Do I need to install any software to convert GRAPHML to GRAPHMLZ?
No. The GRAPHML to GRAPHMLZ conversion runs entirely online in your browser and works on Windows, Mac, Linux, Android and iPhone.
Did the conversion fail?
In most cases, the cause is an incorrect file format. Please upload a valid GRAPHML file for this GRAPHML to GRAPHMLZ conversion. Occasionally, the issue may be on our side. We analyze recurring conversion failures and disable or fix the converter if we detect a defect.