Scan a damaged ZIP byte-by-byte for surviving local file headers and recover every readable entry into a fresh ZIP. Last-resort recovery, browser-native.
Per-job file size, entry count, and batch caps for ZIP Repair. Limits apply to every Archive tool in JAD Apps; upgrade for larger uploads and bigger batches.
| Tier | Max archive size | Max entries / archive | Max files per batch |
|---|---|---|---|
| Free | 47.7 MB | 500 | 1 |
| Pro | 476.8 MB | 50,000 | 20 |
| Developer | 1.86 GB | 50,000 | 20 |
This tool requires the Pro plan or higher.
Drop your damaged ZIP file
We bypass the (likely corrupt) central directory and scan for PK\x03\x04 local file headers
Recoverable entries are repackaged into a clean output ZIP — with a recovery report
0 bytes uploaded. Corrupted ZIP Repair Tool runs entirely in your browser using fflate, zip.js, and libarchive WASM. Your archive files never leave your device.
Truncated downloads, broken central directories, garbled EOCD, and bit rot in metadata. We cannot recover entries whose compressed data is itself damaged — those will appear in the report as failed-but-skipped.
Order of entries may differ (we follow byte-scan order, not the original directory order). Per-entry data is bit-exact. File timestamps, comments, and extra fields are preserved when readable.
If no local file headers can be found, the file is not a salvageable ZIP. Try the Auto Format Detector first to confirm the input is actually ZIP — sometimes a renamed RAR or 7Z hits this tool by mistake.
Verify every entry in a ZIP against its stored CRC32 checksum to detect corruption, partial downloads, or tampering. Browser-native, zero upload.
Open toolDrop any file and reveal its true archive format. Detects ZIP, GZ, TAR, BZ2, XZ, 7Z, RAR by magic bytes — extension-independent. Browser-native, zero upload.
Open toolInspect every entry's headers — version, OS, last modified, compression method, encryption flags, extra fields. Forensic-grade ZIP intelligence, zero upload.
Open tool