Convert GML Files Online — 3 Format Options
Convert GML File Online — Free & Instant
No signup required. Works in your browser.
📁 Drag & drop your file here
or click to browse • Max 100MB
✅ Free • ⚡ Instant • 🔒 Secure • 💻 No install
About GML Files
GML (.gml) is a gis file format developed by OGC. Geography Markup Language
It is commonly used by cartographers and urban planners to map and overlay files in professional and personal workflows. With OpenAnyFile, you can convert your .gml files to 3 different formats directly in your browser — no software installation required.
How to Convert GML Files — Step by Step
- Upload your file — Drag and drop your .gml file into the converter above, or click "Browse" to select it from your device. Files up to 50MB are supported.
- Automatic detection — OpenAnyFile identifies the GML format using magic byte signature analysis (not just the file extension), ensuring accurate format recognition.
- Select target format — Choose from 3 supported output formats. Popular choices include GEOJSON, KML, SHP.
- Convert instantly — Processing happens in the cloud and typically takes just a few seconds, even for large files.
- Download your file — Once conversion is complete, download your converted file immediately. Files are automatically deleted after 1 hour for security.
Why Convert GML Files?
Many cartographers and urban planners need to share .gml files with colleagues or clients who may not have the right software installed. Converting GML to a more universal format solves this compatibility issue instantly.
- Universal Compatibility: Not everyone has software that opens .gml files. Converting to a universal format like PDF, JPG, or PNG ensures anyone can access your content on any device.
- Smaller File Size: Some target formats offer better compression, reducing file size by up to 80% for easier sharing via email or cloud storage.
- Easier Editing: Convert to an editable format to modify content that may be locked or read-only in .gml format.
- Long-term Archiving: Convert to standardized formats (PDF/A, TIFF, PNG) for reliable long-term storage and future accessibility.
- Web Publishing: Convert .gml to web-friendly formats for use in websites, social media, or online presentations.
All GML Conversion Options (3 Formats)
Below is the complete list of formats you can convert .gml files to using OpenAnyFile:
- GML to GEOJSON — Convert your .gml file to GEOJSON format online, fast and free
- GML to KML — Convert your .gml file to KML format online, fast and free
- GML to SHP — Convert your .gml file to SHP format online, fast and free
Tips for Best Conversion Quality
Batch conversion is available for Pro users — convert multiple .gml files at once to save time on large projects.
OpenAnyFile uses professional-grade conversion engines to ensure maximum quality. Common issues with .gml files include: Schema complexity
GML Format Details
| Property | Value |
|---|---|
| Format Name | GML |
| File Extension | .gml |
| Category | GIS |
| Developer | OGC |
| Conversion Targets | 3 formats |
Frequently Asked Questions
Can I convert .gml files online for free?
Yes. OpenAnyFile lets you analyze and preview .gml files for free. You can convert up to 3 files per day on the free plan. Unlimited conversions are available with Pro.
What formats can I convert .gml to?
GML can be converted to 3 formats including GEOJSON, KML, SHP. Each conversion preserves quality and formatting as much as the target format allows.
Is it safe to convert .gml files online?
Absolutely. Files are processed securely using HTTPS encryption and automatically deleted after conversion. We never store your file contents permanently. Your data stays private.
Do I need software to convert .gml?
No. OpenAnyFile works entirely in your browser — no downloads or installations needed. It works on Windows, Mac, Linux, iOS, and Android devices.
How long does GML conversion take?
Most .gml files convert in under 10 seconds. Larger files (over 50MB) may take up to 30 seconds depending on the target format and complexity.
Can I convert multiple .gml files at once?
Yes, batch conversion is available for Pro users. Upload multiple .gml files and convert them all to the same target format simultaneously.