GPX to GZ Converter
Processing entirely on your device — large files may take a moment.
GPX is the GPS track format: waypoints, routes and recorded tracks with timestamps, written by every watch, phone and bike computer. Unpack a .gz into a normal file or repack it as ZIP/TAR when the receiving tool does not understand gzip.
iLoveConverter processes everything locally on your computer, which makes it private and fast: no upload wait, no server storage, no limits. Add as many files as you like — batch conversion is built in.
How to convert GPX to GZ
- 1
Select your files
Select your GPX file.
- 2
Convert instantly
The file bytes are gzip-compressed in place — the same archive your server or build tool produces, made locally.
- 3
Download results
Download the .gz file — ready to upload, serve or attach.
About the GPX format
GPX is the GPS exchange format: an XML file with waypoints, routes and — most importantly — <trk> tracks of timestamped coordinates. Every sports watch, phone app and bike computer exports it, which makes it the common denominator of “where have I been” data.
Converting GPX to GeoJSON puts the track on an interactive map; converting to CSV turns it into rows you can pivot, chart or join with sensor data.
+Strengths
- ✓Universal across GPS devices and apps
- ✓Timestamps enable pace and speed analysis
- ✓Simple XML, easy to post-process
!Limitations
- −No styling or basemap context
- −Large tracks make big files
About the GZ format
A .gz file is one file squeezed by gzip — not an archive. kernel.org tarballs are “tar inside gz”, but plenty of logs, JSON dumps and CSV exports travel as plain .gz. Opening one means decompressing it back to the original bytes.
Repacking into ZIP or TAR gives the decompressed file a container that every GUI tool opens without a second thought.
+Strengths
- ✓Everywhere on Linux and macOS
- ✓Fast, well-understood compression
- ✓Streams natively from any tool
!Limitations
- −Single file only — no directory tree
- −No encryption or integrity metadata
Why convert GPX to GZ?
Converting makes sense where the strengths of GZ meet what GPX cannot give you. Everywhere on Linux and macOS Meanwhile No styling or basemap context One pass through the converter above puts your file on the right side of that trade-off.
Frequently asked questions
Is this GPX to GZ converter really free?
Yes — completely free, with no sign-up, no watermark and no daily conversion limits. The site is supported by advertising.
Are my files uploaded to a server?
No. The conversion runs entirely inside your browser using WebAssembly, so your files never leave your device — that is what makes it instant and private.
Does it work on Windows, Mac, iPhone and Android?
Yes. Anything with a modern browser works: Windows, macOS, Linux, Android and iOS. No software installation is required.
Is there a file size limit for GPX to GZ?
The only limit is your device's memory, since nothing is uploaded. Files up to a few hundred megabytes work fine on a modern desktop browser; very large files simply take a little longer.
Is there a size limit for archive conversion?
There is no upload cap because nothing is uploaded — the practical limit is your device memory. A few hundred megabytes of unpacked content works comfortably on a modern computer.
Are the files inside my GPX archive modified?
No. Contents are unpacked in memory and repacked into GZ byte-for-byte — the conversion changes the container, never the files inside it.