Convert 7Z to JSON Online Free
Extract the complete file listing from 7-Zip archives into structured JSON format. Perfect for archive analysis, backup verification, and inventory management.
By ChangeThisFile Team · Last updated: March 2026
ChangeThisFile extracts 7Z archive contents to JSON using 7-Zip on a secure server. Upload your .7z file, and a complete directory listing with file names, sizes, dates, and folder structure is generated in JSON format. Files are auto-deleted after processing. Free with no signup required.
Convert 7-Zip to JSON
Drop your 7-Zip file here to convert it instantly
Drag & drop your .7z file here, or click to browse
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7-Zip vs JSON: Format Comparison
Key differences between the two formats
| Feature | 7-Zip | JSON |
|---|---|---|
| Data type | Compressed archive | Structured file listing |
| Content | Files and folders (compressed) | File metadata and directory structure |
| Information access | Requires extraction software | Human-readable text format |
| Use case | File compression and storage | Archive analysis, inventory, APIs |
| File structure | Binary compressed data | Hierarchical JSON objects |
| Compression info | Embedded compression ratios | Size comparisons in readable format |
| Processing | Extraction required | Text processing, easily parsed |
When to Convert
Common scenarios where this conversion is useful
Archive inventory management
Generate detailed inventories of 7Z backup archives without extracting them. JSON listing includes file names, sizes, modification dates, and folder structure for archive catalogs.
Backup verification
Verify backup archive contents by converting to JSON and comparing against expected file lists. Identify missing files or directory structure changes without full extraction.
Software distribution analysis
Analyze software packages distributed as 7Z archives. Extract file listings for security auditing, dependency checking, and installation planning.
Digital forensics
Examine 7Z archive contents for forensic analysis without modifying the original archive. JSON listing preserves metadata for evidence documentation.
Who Uses This Conversion
Tailored guidance for different workflows
For System Administrators
- Catalog backup archives without extracting them to verify backup completeness and file integrity
- Analyze software distribution packages to check for security vulnerabilities or unwanted files
- Generate inventory reports from archived log files and system backups for compliance auditing
For Digital Archivists
- Document digital preservation archives without extracting sensitive or fragile file formats
- Create searchable catalogs of archived collections using the structured JSON metadata
- Verify archive integrity by comparing current listings against original preservation records
For Developers
- Build archive management tools that display contents without extracting files to disk
- Create automated deployment scripts that verify package contents before installation
- Develop backup verification systems using JSON listings to validate archive completeness
How to Convert 7-Zip to JSON
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1
Upload your 7Z archive
Drag and drop your .7z file onto the converter, or click browse to choose from your files. The file is uploaded over an encrypted connection.
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2
Server-side archive analysis
The server analyzes your 7Z archive using 7-Zip tools. This reads the archive directory without extracting files, generating a complete contents listing.
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3
Download the JSON result
Save your archive listing as a .json file. The server copy is automatically deleted after processing for your privacy.
Frequently Asked Questions
The JSON includes file names, file sizes, compressed sizes, modification dates, creation dates, folder paths, compression ratios, and archive structure with nested directories.
No. Only the directory listing is read from the archive header. Files remain compressed and are not extracted, making this a safe way to examine archive contents.
Password-protected 7Z archives cannot be analyzed without the password. The tool requires access to the archive directory, which is encrypted when password protection is used.
Nested folders are represented as hierarchical JSON objects with each folder containing its files and subfolders. The full path is preserved for easy navigation.
There is a 50MB upload limit for the archive file itself. However, the contents of the archive can be much larger since files are not extracted, only the directory is read.
If the archive is corrupted and cannot be read, the conversion will fail with an error message. The JSON listing requires a valid, readable archive directory.
Yes. The JSON includes both original file sizes and compressed sizes, allowing you to calculate compression ratios for each file in the archive.
Unicode file names are preserved in the JSON output using proper UTF-8 encoding. Special characters and international file names are displayed correctly.
Yes, as long as the archive file itself is under 50MB. Archives containing gigabytes of data can be analyzed since only the directory structure is read, not the file contents.
The tool works with 7Z archives created with any compression method (LZMA, LZMA2, PPMd, etc.) and compression levels. All 7-Zip compression formats are supported.
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