Repair damaged files online
Attempt recovery on corrupt images, PDFs, ZIP archives, and broken text streams, then review the repair summary before you download.
Repair corrupted, damaged, or unreadable files — images, PDF, ZIP, and text or JSON. Upload a broken file and download a recovered copy. Max 150 MB per file.
Server processing — files deleted after repair
Upload a damaged file to repair
Images (JPG, PNG, WEBP, GIF, TIFF, BMP, AVIF), PDF, ZIP, and text or JSON. Max 150 MB. Encrypted or ZKE files must be decrypted first.
Re-encode damaged images, rebuild PDF structure, salvage ZIP entries, and sanitize broken text or JSON streams.
Each job returns a repair summary so you know what was recovered before you download the fixed file.
Uploads are processed temporarily and deleted immediately after your repaired download is ready.
What “corrupt” means on this page
A truncated download, a failing disk sector, or a transfer that stopped mid-write can leave a file whose extension still says JPG, PDF, or ZIP while viewers refuse to open it. The container or stream is incomplete.
This tool attempts recovery paths matched to the type you upload. Images can be re-encoded when enough pixels remain readable. PDFs can have object structure rebuilt when fragments survive. ZIP jobs walk members that still expose local headers. Text and JSON paths sanitize broken streams so parsers can open them again.
Repair cannot invent bytes that never arrived. Overwritten data stays gone. The honest outcome is often a partial salvage plus a summary that tells you what came back.
Accepted types and the 150 MB ceiling
Image inputs include JPG, PNG, WEBP, GIF, TIFF, BMP, AVIF, and HEIC. Document and archive inputs include PDF and ZIP. Text-like inputs include TXT, JSON, Markdown, CSV, logs, XML, and HTML.
Jobs accept files up to 150 MB. Larger damaged archives need an offline recovery path or a split source copy before you try an online pass.
Password-protected ZIP members stay unreadable without the password. Headers alone do not decrypt ciphertext.
- Keep the damaged original until you confirm the repaired download opens.
- Do not overwrite your only backup with an empty or near-empty result.
- Match the upload to a supported extension so the correct repair path runs.
Read the repair summary before you trust the file
Each finished job returns a short summary of what was recovered. Read that summary before you replace any other copy you still have. Partial salvage is still progress when a gallery app showed nothing at all.
If the summary reports little recovered content, search for another copy from the sender, cloud version history, or an earlier backup. Repeating the same empty repair does not create new pixels or PDF pages.
After you download, open the file in the real viewer you care about: an image app, a PDF reader, or an archive tool. Confirm page count or entry list against the summary.
Images versus archives versus text streams
Damaged photos often respond when headers remain intact enough to decode some pixel data. Completely overwritten image payloads cannot be reconstructed from hope.
ZIP repair focuses on entries with readable local headers. When the central directory is missing, the job may still return members that could be walked from the remaining structure.
Text and JSON repair focuses on sanitizing broken streams so editors and parsers open them again. Semantic meaning that was never written cannot be invented by a repair pass.
Steps on this page
Upload the damaged file. Start repair. Wait for processing. Read the summary. Download the repaired output when it is offered.
Keep the tab open through the job. Uploads are processed temporarily and deleted after the repaired download is ready.
Name the download clearly so you never confuse the repaired copy with the broken original sitting in the same folder.
Free quota and habits that prevent the next failure
File repair runs within Vidzilla’s daily tools quota. Ordinary photo and document sizes process without an account.
Prefer transfers that show a complete progress bar. Interrupted Wi-Fi is a common source of truncated PDFs and ZIPs. When a site lists a byte count, compare it to the file size on disk before you archive the download.
Copy important recovered archives to a second drive after a successful open. One repaired file on a failing disk becomes two problems tomorrow.
After a successful open
If critical pages or archive members are still missing, stop and restore from backup or the sender’s copy rather than circulating a hollow file.
When the repaired PDF or image opens fully, compress or convert only after you have confirmed the content. Repair first, then size or format changes.
For ZIPs that recovered only some members, extract those keepers into a fresh archive so you are not carrying a half-broken container forward.
When the repaired image opens but looks soft or incomplete, treat it as a salvage proof rather than a print master. Search for another source copy before you print or publish.
Document what you tried: original filename, size on disk, repair summary text, and whether the viewer opened. That note saves time if you escalate to offline recovery tools later.
Partial PDF salvage that opens a few pages is still useful for quoting text or recovering figures. Export those pages or print them before you discard the repaired copy.
Never run repair as a substitute for version history. Cloud “previous versions” and sender re-uploads remain the primary path when the local file is badly truncated.
Questions about file repair
What is the maximum upload size?
Repairs accept files up to 150 MB. Larger damaged archives need another recovery method or a split source copy first.
Will every corrupt file come back whole?
No. The tool salvages what the remaining structure allows. Overwritten or never-downloaded bytes cannot be reconstructed.
What does the repair summary tell me?
It lists what the job recovered so you can judge whether the download is worth keeping before you discard other copies.
Can I repair a password-protected ZIP?
Encrypted members need the password available to the repair path. Without it those entries stay unreadable even if headers look intact.
Do you keep my damaged upload?
No. Damaged uploads are processed temporarily and deleted after the repaired download is ready.
Is file repair free?
Yes. File repair runs within Vidzilla’s daily tools quota for supported types under the 150 MB size ceiling.