7Z → ZIP
Unpacks 7z and repacks as ZIP (DEFLATE) for direct extraction on Windows/macOS without installing 7-Zip.
Drag files here or click to upload (multiple files supported)
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How to convert 7Z to ZIP
- 1Upload your 7Z file by dragging, clicking, or pasting.
- 2Adjust quality settings if needed.
- 3Click 'Convert Now' and wait for the conversion to complete.
- 4Download your converted ZIP file.
About 7Z to ZIP conversion
7Z is the archive format of 7-Zip released in 1999, using LZMA/LZMA2 compression algorithm. ZIP is a general-purpose archive format released by PKWARE in 1989, using DEFLATE compression on a per-file basis. This conversion demand arises from the native ZIP decompression support of Windows and macOS, which requires no additional software installation.
This conversion is completed based on the 7-Zip engine. It retains the original directory structure inside the archive, switches the compression algorithm from LZMA/LZMA2 to DEFLATE. The compression ratio is lower than that of the original 7Z file, and the output file can be decompressed directly by Windows and macOS natively.
This conversion is suitable for workflows that involve public file distribution and need to provide archives for native system users. The conversion must comply with this site's archive decompression safety limits: the total uncompressed size does not exceed 256MB, and the number of files does not exceed 1000.
7Z vs ZIP: technical comparison
| Feature | 7Z | ZIP |
|---|---|---|
| Released | 1999 | 1989 |
| Developer | Igor Pavlov | PKWARE (Phil Katz) |
FAQ about 7Z → ZIP
Will the file size change after conversion?
The file size will increase after conversion. 7Z uses LZMA/LZMA2 compression, which has a compression ratio 10% to 30% higher than DEFLATE used by ZIP. After conversion to ZIP, the compression ratio decreases, so the file size increases accordingly.
Is the original directory structure preserved?
The original directory structure inside the archive is fully preserved. The original permission information of each file in the archive is also retained, and the content of individual files in the archive is not modified during the conversion process.
What is the single file size limit?
This site supports a maximum single file size of 50MB, only one file can be converted at a time. It must also meet the archive safety limits: the total uncompressed size does not exceed 256MB, and there are at most 1000 files. Requests exceeding the limit will be rejected.
Are uploaded files stored?
Conversion is completed on the server side. Files are uploaded via HTTPS. After conversion is completed, the server immediately deletes both the source file and the output file, no storage is performed, and file content will not be leaked.