TAR to 7Z Converter
Convert TAR archives to compact 7Z files while preserving the complete folder structure and filenames inside the archive.
Drop your TAR files here
Up to 50MB per file.
Files are encrypted and auto-deleted after conversion
How to Convert
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Upload your TAR files
Drag and drop or select TAR files from your device. You can upload multiple files at once.
- 202
Create the new archive
Start the conversion to unpack the TAR safely and package the original files and folders in a genuine 7Z archive.
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Download 7Z files
Download the completed 7Z archive with its folders and filenames preserved.
Why convert TAR to 7Z?
TAR is an archive that groups files and folders together for distribution, backups, and Unix workflows. Converting it to 7Z creates a high-compression archive that can contain multiple files and folders, ready for workflows that use the destination format.
7Z opens with 7-Zip, PeaZip, Keka, The Unarchiver, and compatible archive tools on major operating systems.
Frequently Asked Questions
Why convert TAR to 7Z?
7Z adds compression to the files grouped inside TAR and is useful for compact storage and transfer.
Will the archive structure stay intact?
Yes. The converter keeps folders, nested folders, and filenames in the new 7Z archive.
Is the output compatible with 7-Zip?
Yes. The result is a genuine .7z archive that opens with 7-Zip and compatible archive apps.
Can I convert multiple TAR files?
Yes. Add several TAR archives and convert them together.
Do I need to extract the TAR first?
No. Crest Convert extracts it securely and creates the 7Z archive in one conversion.