ARJ Won't Open? Convert to GZIP Instantly
Fast, instant ARJ to GZIP conversion. No signup required. Just drop your .arj file and get .gzip in seconds.
Batch Settings
About ARJ to GZIP Conversion
Dealing with a ARJ file that won't open on your device? You're not alone — ARJ compatibility issues are one of the most common reasons people search for a file converter. ARJ is a widely used file format.
The fix is simple: convert your ARJ to GZIP. GZIP is a widely used file format. This conversion lets you convert between formats quickly, solving the problem in seconds rather than hours of troubleshooting.
Converting ARJ to GZIP maintains high quality with CocoConvert's optimised encoder settings.
CocoConvert processes your ARJ file on secure servers in Germany — upload, convert, download. Your files are encrypted via TLS and automatically deleted within 24 hours. No account needed, no software to install, and it works on any device with a browser.
This conversion is ideal when you When you need a GZIP file.
The conversion engine behind CocoConvert uses FFmpeg, Sharp, and qpdf — the same open-source libraries trusted by Netflix, YouTube, and enterprise platforms. Pro users can batch convert up to 100 files at once.
How to Convert ARJ to GZIP
- 1
Add your ARJ file
Drag and drop your .arj file into the converter, or tap "Browse" to pick it from your device. Multiple files are supported for batch processing.
- 2
Pick GZIP output
Select .gzip as the target format. CocoConvert automatically applies the best quality settings for this conversion.
- 3
Start conversion
Hit the Convert button. The archive / compression engine processes your file server-side — no CPU drain on your device.
- 4
Save your file
Once done, download your .gzip file. For batch jobs, download all at once as a zip.
What Happens When You Convert ARJ to GZIP
Your ARJ file is decoded and re-encoded as GZIP.
Your ARJ file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in GZIP format
The converted file is ready for download
Format Comparison
ARJ
.arj file
| Extension | .arj |
| MIME Type | application/x-arj |
| Category | Archive / Compression |
GZIP
.gzip file
| Extension | .gzip |
| MIME Type | application/gzip |
| Category | Archive / Compression |
Should You Convert ARJ to GZIP?
When to Convert
- ✓When you need a GZIP file
Frequently Asked Questions
Why won't my ARJ file open?
ARJ files may not open if your device lacks the right codec or application. Converting to GZIP — a more widely supported format — usually resolves this. GZIP is a widely used file format.
Is it safe to convert ARJ to GZIP online?
Yes. CocoConvert encrypts your file via TLS, processes it on isolated servers in Germany, and permanently deletes it within 24 hours. Your files are never shared or analysed.
Will I lose quality converting ARJ to GZIP?
Converting ARJ to GZIP maintains high quality with CocoConvert's optimised encoder settings. CocoConvert uses high-quality encoder defaults to preserve as much fidelity as possible.
How large can my ARJ file be?
Free users can convert files up to 250 MB each. Pro users get a 5 GB limit per file, and Business API users have custom limits.
Can I convert ARJ to GZIP on my phone?
Absolutely. CocoConvert works in any modern browser — iOS Safari, Android Chrome, and all desktop browsers. No app required.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.