ALZ to ZIP Converter
Convert ALZ to ZIP online for free. Fast, secure, and high-quality conversion with no sign-up or software required.
Maximum file size is 1GB
How it works
Three steps to your converted file
Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.
Upload your file
Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.
Choose an output format
Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.
Convert & download
Hit Convert and grab your download link moments later. Originals are erased when the job completes; results are cleared within about an hour.
What is an ALZ file?
An ALZ file is a proprietary compressed archive format developed by the South Korean software company ESTsoft, specifically for use with the ALZip utility. Introduced to circumvent the file size limitations of early ZIP specifications, the format allows for archives exceeding 4 GB and supports spanning data across multiple split volumes. While ALZ utilizes the Deflate compression algorithm to reduce storage requirements, it is a closed-source format without an official ISO standard or public documentation. Consequently, the format's internal structure and header signatures are distinct from standard ZIP or TAR archives, limiting its compatibility with non-proprietary decompression libraries.
How to open an ALZ file
Operating systems including Microsoft Windows, macOS, and Linux do not provide native file explorer support for the ALZ extension. Users must install third-party archival software capable of parsing ESTsoft's proprietary compression algorithms. The official ALZip software is the primary tool for creating and extracting these files; however, alternative utilities such as Bandizip and The Unarchiver (macOS) have successfully reverse-engineered read capabilities. Standard compression tools like WinRAR or 7-Zip may require specific plugins or fail to process the ALZ binary headers entirely.
ALZ Technical Info
- Full Name
- ALZip Archive
- Developed By
- ESTsoft
- Initial Release
- 1999
- MIME Type
- application/x-alz
What is a ZIP file?
The ZIP format is an archive file format capable of lossless data compression, originally created by Phil Katz of PKWARE. It utilizes a Central Directory structure to catalog files and supports various compression algorithms, most notably DEFLATE (RFC 1951). The format is standardized under ISO/IEC 21320-1:2015 as a document container file and serves as the base structure for modern file types like .docx and .jar.
How to open a ZIP file
The ZIP format enjoys universal native support across all major operating systems, including Windows (File Explorer), macOS (Archive Utility), and Linux. No third-party software is strictly required for basic extraction, though power users often employ tools like 7-Zip or WinRAR to access advanced features like AES-256 encryption or multi-volume spanning.
ZIP Technical Info
- Full Name
- ZIP Archive
- Developed By
- Phil Katz (PKWARE)
- Initial Release
- 1989
- MIME Type
- application/zip
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Convert ALZ to ZIP in seconds
Every ALZ to ZIP conversion runs on our servers, so your device stays fast and the output quality stays intact.
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No queue, no waiting. Files are processed on high-performance servers and returned in seconds, even for large files.
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Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.
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Developer API
Convert ALZ to ZIP via API
Automate ALZ to ZIP conversions in three steps: create a job, upload your file, then poll for the result.
# 1. Create job
curl -X POST https://api.runconvert.com/v3/jobs \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"tag": "alz-to-zip",
"tasks": {
"upload-file": {
"operation": "import/upload"
},
"convert": {
"operation": "convert",
"input": "upload-file",
"output_format": "zip"
},
"export-result": {
"operation": "export/url",
"input": "convert"
}
}
}'
# 2. Upload your file (use upload_url from the response)
curl -X PUT "$UPLOAD_URL" --upload-file input.alz
# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$JOB_ID?include=tasks \
-H "Authorization: Bearer YOUR_API_KEY"Replace YOUR_API_KEY with your RunConvert API key. Get your free API key at runconvert.com/api.