Repair Corrupted RAR Files, CRC Errors, and Split Volumes Online
Repair damaged RAR4, RAR5, solid, and multi-part WinRAR archives online when extraction reports CRC failed, unexpected end of archive, unknown format, or a missing volume. Preview readable entries and volume status before download.
Secure
Supports RAR4, RAR5, multi-part RAR, Your file stays private
Repair RAR4, RAR5, Solid, and Multi-Volume Archives
RAR4, RAR5, solid archives, and numbered volume sets store compressed data and file records differently. Fixo identifies the archive version, block sequence, volume order, encryption state, and available recovery records before analysis.
Check RAR Volume Order, Missing Parts, and Recovery Records
A multi-part RAR may depend on every preceding volume, especially when files cross volume boundaries or the archive uses solid compression. Add all available parts in order so Fixo can map the sequence and show where missing or damaged data affects extraction.
part1.rar
Header and first data blocks
part2.rar
Continuation data
part3.rar
Damaged checksum
part4.rar
Waiting for previous volume
The third volume may contain incomplete or damaged file data.What RAR Repair Can Recover from a Damaged WinRAR Archive
Fixo uses the RAR headers, blocks, volume data, and recovery records that still exist to rebuild readable archive information. It cannot replace a missing volume, recreate missing compressed bytes, or bypass an unknown password.
18,269
Unique RAR files processed
90.3%
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.
DATA THAT MAY SUPPORT RECOVERY
part1.rar
Main archive header, when still readable
part2.rar
Following volume data, when available
part3.rar
A missing volume cannot be recreated
part4.rar
Used only when recovery records already exist
Headers and blocks
Version, sequence, block type, and readable metadata
CRC and entry state
Files grouped as ready, partial, or requiring review
Extraction readiness
Folder paths, names, sizes, and readable file data checked
Repair RAR Headers, CRC Errors, Solid Archives, and Split Volumes
RAR repair may involve archive headers, file blocks, checksums, solid compression chains, numbered volumes, encryption, and optional recovery records. Fixo evaluates the surviving structure and each readable entry without claiming to recreate missing archive bytes.
Repair corrupted RAR headers and unknown format errors
If WinRAR reports that the archive is either in unknown format or damaged, the main archive header, file headers, or block sequence may be unreadable. Fixo identifies RAR4 and RAR5 structures, scans surviving file blocks, and rebuilds an index around entries whose metadata and compressed data can still be located.
Archive is corrupt
Unknown format or damaged
Corrupt archive header
Cannot open RAR file
Fix unexpected end of archive and multi-part RAR failures
Unexpected end of archive often means a RAR download is truncated or a required volume is missing. Add part1.rar and every available following volume in order. Fixo maps where the sequence breaks, checks which entries cross the damaged segment, and previews files that remain readable. Missing bytes cannot be recreated.
Repair RAR CRC Errors and Password-Protected Archives with the Correct Password
CRC failed and checksum errors identify file data that no longer matches its stored integrity record. Fixo validates each entry separately and uses an available RAR recovery record when it supports reconstruction. For encrypted archives, enter the correct password so protected file records can be inspected. Repair does not remove or bypass encryption.
Common RAR Errors: CRC Failed, Unexpected End, and Unknown Format
Compare the WinRAR errors that commonly indicate damaged headers, incomplete downloads, missing volumes, checksum mismatches, incorrect passwords, or unavailable recovery data.
Archive is corrupt
RAR metadata or compressed data cannot be validated during extraction.
Unexpected end of archive
The current file or a required volume ends before the expected data is complete.
CRC failed
Decompressed output does not match the checksum stored for that file block.
Required volume is missing
The extraction sequence cannot continue without the previous or next archive segment.
Password is incorrect
Encrypted headers or data cannot be interpreted until the correct password is supplied.
Recovery record unavailable
The archive does not contain readable repair data for the damaged region.
How to Repair a Corrupted RAR File Online in 3 Steps
Upload the main RAR or first volume and all available parts, let Fixo inspect readable blocks and rebuild recoverable records, then preview entries and volume status before download.
What to Check After Repairing a RAR Archive
Confirm the detected RAR version, volume order, readable filenames and paths, file sizes, CRC or block status, and which entries are ready for extraction. Open important files after download to verify their content.
Detected volume sequence
Readable file entries
CRC and block status
Entries ready for extraction
Choose how to repair your RAR 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 | RAR4, RAR5, and focused multi-part 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 RAR Online No installation required | Download Fixo DesktopDesktop app download required |
Frequently Asked Questions
Related online repair tools
RAR Repair Case Studies and Archive Checks
Each case records the RAR version, extraction error, volume state, repair result, and archive-specific checks used to review readable entries after repair.
Carlos M.
Freelance Video Editor, Barcelona
Verified repair record | Case FX-RAR-0182
Inspect and repair your damaged RAR archive
Upload the original file, start repair, and preview the recoverable content before download.
Free to try
Preview before download
Original files untouched