Multi-Volume Archive Checker
Check multi-volume archives (ZIP split, RAR parts) for completeness online for free. Our multi-volume archive checker analyzes the file names and sizes of your uploaded archive parts to detect which naming convention is used (ZIP split .z00-.z99/.zip, RAR .part1.rar-.partN.rar/.rar, or legacy RAR .r00-.r99/.rar), identifies any missing parts by index, and reports whether the set is complete and can be reconstructed. All processing runs locally in your browser - no signup required, no file size limits.
Drop archive parts here or click to browse
Supports .z00-.z99, .zip, .part1.rar-.partN.rar, .rar, .r00-.r99
Why Use Our Multi-Volume Archive Checker?
Instant Completeness Verification for Multi-Volume Archives
Upload all the parts of your split archive and our multi-volume archive checker instantly tells you if the set is complete. Detects missing parts and gap indices - no more guessing which .z01 or .part3.rar you still need to download.
Supports ZIP Split and RAR Multi-Volume Archives
Our multi-volume archive checker supports the three most common multi-volume naming conventions: ZIP split (.z00, .z01, .z02, ... .zip), RAR parts (.part1.rar, .part2.rar, ... .rar), and RAR legacy volumes (.r00, .r01, .r02, ... .rar). Upload a mix of formats and we'll detect the convention automatically.
Visual Part Map with Missing Part Detection
See every part in a clear visual timeline with index numbers, file sizes, and a status badge (Present / Missing). Hover over any part to see its file name and size. Our multi-volume archive checker highlights exactly which parts need to be added to complete the set.
Multi-Volume Archive Checker - No Installation Required
Check split archive completeness directly in your browser. No WinRAR, no 7-Zip, no command-line tools needed. Our free multi-volume archive checker works on any device with a modern browser - no signup, no file size limits, 100% private.
Common Use Cases for Multi-Volume Archive Checker
Downloaded Split Archive Verification
After downloading a multi-part archive from a file hoster, use our multi-volume archive checker to confirm you have all parts before attempting extraction. Avoid the frustration of a failed extraction due to a single missing .z02 file halfway through.
Backup Restoration Readiness
Verify that all parts of a split backup archive are present before attempting restoration. Our multi-volume archive checker tells you if any part is missing so you can locate it before it's needed in a disaster recovery scenario.
Large File Distribution Validation
When distributing large files as split archives, run our multi-volume archive checker to confirm the split was successful and all parts are accounted for. Catch naming errors or missing parts before sending to recipients.
Legacy Archive Inventory
Organize a collection of legacy multi-volume archives (RAR parts, ZIP splits) by checking which archives have all their parts and which are incomplete. Prioritize re-downloading missing parts for important archives.
External Drive Archive Audit
Audit multi-volume archives stored on external drives, NAS devices, or cloud storage to ensure part sets are complete. Detect missing parts before media degradation or accidental deletion makes recovery impossible.
File Hosting Platform Upload Check
Before splitting and uploading a large archive to a hosting platform, use our multi-volume archive checker to verify the naming convention and detect any gaps. Confirm the split produced a valid part sequence ready for upload.
Understanding Multi-Volume Archives
What is a Multi-Volume Archive?
A multi-volume archive (also called a split archive or spanned archive) is a single archive that has been split across multiple files. This is commonly done to fit large archives onto removable media (floppy disks, CDs, USB drives) or to work around file size limits on file hosting platforms. ZIP split archives use numbered extensions like .z01, .z02, .z03 and end with a .zip file. RAR multi-volume archives use .part1.rar, .part2.rar, .part3.rar naming, with the final part as .rar. Legacy RAR volumes use .r00, .r01, .r02 and end with .rar. All parts must be present in the correct order to reconstruct the archive.
How Multi-Volume Naming Conventions Work
ZIP split archives use a simple numbering scheme: .z00, .z01, .z02, and so on, with the final part being a standard .zip file. RAR multi-volume archives use .part1.rar, .part2.rar, .part3.rar naming, where the final .rar file contains the archive metadata and is the entry point for extraction. Legacy RAR volumes use .r00, .r01, .r02, with .rar as the final part. Some tools also use .001, .002, .003 naming conventions. Our multi-volume archive checker detects all these patterns automatically from file names.
What Happens When Parts Are Missing?
When a multi-volume archive is missing one or more parts, it cannot be reconstructed or extracted. Extraction tools like WinRAR or 7-Zip will show an error message indicating which part is missing. Our multi-volume archive checker helps you avoid this by verifying completeness upfront - it shows exactly which indices are missing so you can locate the right files to download or restore. Note that all parts must have exactly the correct file names; renamed parts will not be detected as belonging to the set.
Important Limitations of Our Multi-Volume Archive Checker
Our multi-volume archive checker verifies completeness from file names and sizes only - it does not extract or decompress the archive contents. It cannot verify that individual parts are uncorrupted, that the archive password is correct, or that the parts will successfully extract together. For full integrity verification, use our Archive Integrity Checker tool after confirming completeness. Also note that file names must follow standard naming conventions; renamed files will not be detected as part of the set.
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Frequently Asked Questions About Multi-Volume Archive Checker
A multi-volume archive checker verifies that all parts of a split archive (also called a spanned or multi-volume archive) are present and in the correct order. Upload the parts and our tool detects the naming convention, identifies any missing parts, and tells you whether the archive can be reconstructed. Our free multi-volume archive checker online runs entirely in your browser - no server upload required.
Our multi-volume archive checker supports three naming conventions: ZIP split archives (.z00, .z01, .z02, ... .zip), RAR multi-volume archives (.part1.rar, .part2.rar, .part3.rar, ... .rar), and legacy RAR volumes (.r00, .r01, .r02, ... .rar). The tool automatically detects which format your files use from their extensions.
ZIP split archives use a simple numbering scheme: the first part is .z00, the second is .z01, the third is .z02, and so on. The final part is a standard .zip file. To extract the archive, you need all the .zXX parts and the .zip file in the same directory, then open the .zip file with any ZIP extractor. Some tools start at .zip (first part) and continue with .z01, .z02 - our tool handles both conventions.
RAR multi-volume archives use .part1.rar, .part2.rar, .part3.rar naming. The final part is simply .rar (without a part number). To extract, place all parts in the same directory and open the .rar file with WinRAR, 7-Zip, or any RAR-compatible extractor. Legacy RAR volumes use .r00, .r01, .r02 naming instead.
Yes. All analysis runs entirely in your browser using file metadata (names and sizes). Your archive parts are never uploaded to any server, never stored remotely, and never transmitted over the network. Your files stay completely private.
Yes - 100% free, forever. No signup, no account, no premium tier, no file size limits, and no ads interrupting your workflow. Just upload your archive parts and get instant completeness verification.
A "Missing part" means our multi-volume archive checker detected a gap in the numbering sequence. For example, if you uploaded .z01 and .z03 but not .z02, part index 1 would be marked as missing. The archive cannot be reconstructed until all parts in the sequence are present.
No - our multi-volume archive checker only verifies completeness from file names and sizes. It does not extract, decompress, or open the archive contents. Use a dedicated extractor like WinRAR, 7-Zip, or our ZIP File Extractor tool after confirming all parts are present.
Files that do not match known naming conventions (e.g., manually renamed files, custom split patterns, .001/.002 numbering) will be shown in alphabetical order with an "Unknown" format label. You can still see the list of files, but our multi-volume archive checker may not be able to detect missing parts or verify completeness.
Since all processing runs in your browser, the practical limit depends on your device. However, our tool only reads file names and sizes (not file contents), so even archives with very large individual parts or hundreds of parts work smoothly.