Repair Corrupted ZIP Files Online and Preview Recoverable Entries
Repair damaged ZIP, ZIP64, ZIPX, and split archives online when a ZIP will not open, extraction fails, or a CRC error appears. Fixo inspects readable headers and directory records so you can preview recoverable files before download.
Secure
Supports ZIP, ZIPX, ZIP64, Your file stays private
Repair ZIP, ZIP64, ZIPX, and Split ZIP Archives
A ZIP archive can fail while opening, listing files, testing integrity, or extracting an entry. Fixo checks local file headers, the central directory, ZIP64 records, checksums, and readable compressed data before rebuilding the archive index.
See Which Files Remain Recoverable in a Corrupted ZIP
Preview the damaged archive as a file tree. Each entry can be identified as readable, partial, damaged, or unavailable, helping you understand what can still be extracted before downloading a rebuilt ZIP.
project-assets.zip18 entries
Documents
3 readable
Photos
8 readable
Exports
4 partial
backup.db
CRC mismatch
notes.txt
Readable
Documents
Readable local file records can be added to a rebuilt archive directory and prepared for extraction.
3 readable files
Rebuild directory records
Common ZIP Errors: CRC Failed, Invalid Archive, and Unexpected End
ZIP errors do not all mean the same thing. Compare CRC failures, invalid archive messages, missing central directory records, unexpected end errors, password issues, and split-volume problems to understand what may still be repairable.
Cannot open the ZIP
The archive signature, directory, or essential header records cannot be parsed.
CRC check failed
Extracted data does not match the checksum saved for one or more entries.
Unexpected end of archive
The download or transfer may have ended before all archive data arrived.
Central directory missing
The end-of-archive index is unavailable even though local file records may remain.
Encrypted entry cannot extract
The correct password is required before encrypted content can be inspected.
One volume is unavailable
A split archive may be incomplete when a required segment is missing or damaged.
What ZIP Repair Can Recover from a Damaged Archive
Fixo uses readable directory records and local file headers that remain in the archive to rebuild a usable file list. Some entries may be extractable while others remain partial or unavailable. Missing file bytes cannot be recreated.
25,823
Unique ZIP files processed
92.8%
Repair success rate
Among files containing repairable data
Last 12 months
Rolling measurement period
Counted by unique file
Repair success means the repair process completed successfully. The amount of content retained still depends on the source data remaining in the damaged file.
EXAMPLE REPAIR PREVIEWproject-files/documents/report.docx
media/interview.mp4
data/records.csv
Review recovered entries
The archive result separates container repair from the condition of each file inside it.
Central directory
Rebuilt entry names, paths, sizes, and offsets where records are available.
Local file headers
Compared with directory records to locate recoverable entry data.
CRC and extraction
Reports entries that pass checks, remain partial, or require review.
Repair ZIP Directory, Header, CRC, and Extraction Errors
ZIP repair depends on local file headers, the central directory, ZIP64 metadata, compressed data, filenames, folder paths, and CRC values. Fixo evaluates each entry separately so one damaged file does not hide other files that remain readable.
Fix an invalid ZIP file or broken central directory
Messages such as invalid ZIP file, cannot open archive, or end of central directory not found often point to damaged archive indexes or file boundaries. Fixo scans available local file headers, names, offsets, compression methods, and sizes to identify entries that can be placed into a rebuilt directory.
ZIP file is invalid
Cannot open ZIP archive
Central directory not found
Archive header is damaged
Repair ZIP CRC errors and data integrity failures
A CRC failed or data error message means an extracted entry does not match the checksum stored in the archive. Fixo records which files remain readable, which entries are partial, and where compressed data is damaged, helping users review recoverable content instead of receiving one generic archive status.
Recover files from an incomplete or unextractable ZIP
Interrupted downloads, failed cloud sync, USB transfer errors, and storage faults can leave a ZIP file truncated. Fixo scans beyond the damaged index to locate readable entry records and shows which folders and files can still be previewed. Data that was never downloaded cannot be recreated.
Repair ZIP64, ZIPX, split, and password-protected archives
Large ZIP64 archives, ZIPX files, and split ZIP sequences require their format metadata and segments to remain aligned. Add every available volume and provide the correct password when encrypted entries must be inspected. ZIP repair does not discover, remove, or bypass passwords.
How to Repair a Corrupted ZIP File Online in 3 Steps
Upload the original ZIP archive and any available split volumes, let Fixo inspect directory and entry records, then preview recoverable files and their status before download.
What to Check After Repairing a ZIP Archive
Review the file tree, filenames, folder paths, file sizes, CRC status, and extraction readiness. Open important recovered files after download to confirm their content is usable.
Folder hierarchy
Readable file names
Entry status and size
Files ready for extraction
Choose how to repair your ZIP file
Start online for a fast single-file repair. Use Fixo Desktop when the job needs more capacity or advanced options.
Advanced repair | Online repairFor a quick single file | Desktop repairFor larger or multiple files |
Capability |  Not available | Available |
Best for | Quick repair in a browser | Large, batch, or more complex files |
Formats supported | ZIP, ZIPX, ZIP64, and focused archive inspection | More repair formats and file types |
File size | < 100 MB | Unlimited |
Batch repair | Not supported | Supported |
Local & private processing | Processed over an encrypted connection | Processed locally; files never leave your device |
Offline use | Internet connection required | Fully offline |
Complex damage | Common structural damage | Advanced workflows for severe corruption |
Premium technical assistance | Not supported | Supported |
Access | Open the browser and go | Download and install |
Repair ZIP Online No installation required | Download Fixo DesktopDesktop app download required |
Frequently Asked Questions
Related online repair tools
ZIP Repair Case Studies and Entry Checks
Each case records the ZIP type, extraction error, repair result, and entry-level checks used to review filenames, paths, sizes, CRC status, and readable content.
Theo B.
Creative Producer, Amsterdam
Verified repair record | Case FX-ZIP-0182
Inspect and repair your damaged ZIP archive
Upload the original file, start repair, and preview the recoverable content before download.
Free to try
Preview before download
Original files untouched