Repair. Convert. Fix. Any file, instantly.
Diagnose file problems, repair corrupted documents, convert formats, and compress oversized files — all inside your browser. No software. No uploads.
Popular tools
Fast, free, and private — every tool runs right in your browser.
Repair ZIP
Fix corrupt or damaged ZIP files in your browser. Recovers files from ZIPs with CRC errors, truncated archives, or partial downloads — no upload needed.
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ZIP Extractor
Extract files from any ZIP archive instantly in your browser. Browse contents, download individual files, or extract everything at once — no installation needed.
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Audio to WAV Converter
Convert MP3, OGG, AAC, M4A, FLAC, and OPUS audio files to uncompressed WAV format in your browser. No upload, no software, completely free.
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Compress Image
Compress JPEG, PNG, and WebP images online without losing visible quality. Reduce file sizes instantly — no upload, runs in your browser.
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JPG to PNG
Convert JPG to PNG online in one click. Lossless output, transparent background support — runs entirely in your browser.
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PNG to JPG
Convert PNG to JPG online to reduce file size. Transparent pixels become white. Private — no upload, runs in your browser.
Open toolCommon file problems
Diagnose the issue and understand the cause. then fix it with one click.
Image Colors Look Different When Printed vs. On Screen
Your photo or design looks correct on screen but prints with different, washed-out, or shifted colors.
Read the fixImagesImage Looks Pixelated or Blurry After Resizing
Your image becomes blurry, pixelated, or jaggy after you make it larger or change its dimensions.
Read the fixArchivesZIP File Password Forgotten or Lost
You created a password-protected ZIP but forgot the password, or received an encrypted ZIP without the password.
Read the fixArchivesZIP Split Archive — Missing Parts (z01, z02)
A multi-part ZIP archive (.zip + .z01, .z02...) will not open because one or more parts are missing or incomplete.
Read the fixImagesPNG Shows White Background Instead of Transparent
A PNG file that should have a transparent background is showing white or a colored background when opened or used on a website.
Read the fixImagesScreenshots Look Blurry on Retina / HiDPI Displays
Screenshots you take appear blurry or low-resolution when viewed on a Retina Mac, 4K monitor, or HiDPI display.
Read the fixBrowse by file type
Each hub gathers the tools, problems, and guides for one kind of file.
Archives
The complete archive file hub. Extract and repair ZIP, RAR, 7Z, TAR, and GZ archives. Fix corrupt archives, understand compression algorithms, and choose the right format for sharing, backup, or distribution.
Audio
The complete audio file hub. Convert between MP3, WAV, FLAC, AAC, OGG, M4A, AIFF, and more. Fix common audio errors, learn about audio codecs, and choose the right format for streaming, recording, or archiving.
Images
The complete image file hub. Free tools to compress, resize, convert, and repair images in every major format — JPG, PNG, WebP, GIF, SVG, BMP, TIFF, HEIC, AVIF, and more. Guides, error fixes, and format deep-dives included.
Office Documents
The complete office document and spreadsheet hub. Work with DOCX, PDF, XLSX, CSV, TXT, RTF, ODT, ODS, and all major productivity formats. Fix compatibility issues, convert between formats, and understand every office file type.
The complete PDF resource hub. Free tools to compress, merge, split, rotate, repair, and convert PDF files — plus in-depth guides, common error fixes, and format references. Everything you need to work with PDF documents.
Presentations
The complete presentation file hub. Reference pages for PPTX, PPT, ODP, and KEY formats. Fix common PowerPoint errors, understand compatibility between Keynote, LibreOffice Impress, and Google Slides, and learn how to share presentations across platforms.
Video
The complete video file hub. Tools and guides for MP4, MOV, AVI, MKV, WMV, WebM, and every major video format. Fix playback errors, understand codecs, and learn when to use each container format.
Every file problem, solved in three steps
Understand
Describe what went wrong. We map it to the exact issue and explain the root cause in plain language.
Fix
Run the right tool instantly. Everything happens on your device — your files never touch a server.
Download
Get your repaired, converted, or compressed file in seconds. No watermarks, no sign-up, no limits.
Powerful browser-based tools for repairing, converting, and optimizing any file type.
Step-by-step guides for common file issues — from corruption to compatibility failures.
In-depth articles explaining why files break and exactly how to recover them.
Every tool runs directly on your device. Your files never leave your computer.
Deep-dive guides
Understand the why behind every fix, written in plain language.
How to Reduce Video File Size Without Losing Quality
Reduce a large video from gigabytes to hundreds of megabytes with no visible quality change, using the right codec and settings.
Read guideImagesWhat Is HEIC and Should You Convert It to JPEG?
HEIC is the photo format iPhones use by default. It is technically superior to JPEG but has compatibility problems on Windows and older apps.
Read guideVideoBest Video Format for YouTube, TikTok, and Social Media
Each social platform re-encodes your video regardless of format. Here is what to upload for the best output quality.
Read guideImagesBest Image Format for Print (TIFF, PSD, JPEG, or PNG?)
Sending the wrong image format to a printer causes blurry, colour-shifted, or rejected files. Here is exactly which format to use and why.
Read guideStep-by-step how-to guides
Practical walkthroughs for converting, fixing, and managing files — for every skill level.
How to Convert JPG to PNG (With and Without Transparency)
Change a JPG image to PNG format to enable transparency support or lossless editing — free online converter included.
Read guidebeginnerHow to Reduce PDF File Size Without Losing Quality
Make your PDF smaller for email, upload, or storage without making text unreadable — free methods with and without software.
Read guidebeginnerHow to Extract a ZIP File on Windows, Mac, and Online
Open and extract ZIP files on any device — no software needed for most cases. Includes tips for corrupt or password-protected ZIPs.
Read guideGot a broken file? Fix it in seconds.
No account, no upload, no waiting. Pick a tool and get your file back — right here in your browser.