We make broken files easy to fix.
FixFile.online is a free, privacy-first file tool platform. When a PDF won't open, an image is the wrong format, or an archive is corrupted — we help you understand the cause and fix it in seconds, entirely inside your browser.
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Browser tools
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File fixes explained
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Step-by-step guides
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Private by design
Every tool runs entirely in your browser using JavaScript. Your files are never transmitted to any server, never stored, and never seen by anyone but you.
Genuinely free
No accounts, no paywalls, no watermarks. Every tool and every guide is free forever, supported by standard Google ads that never touch your files.
Problem-first
We don't just convert files — we explain why they break, what the error means, and how to prevent it from happening again.
Fast & focused
A distraction-free interface built for speed. Most fixes take under 10 seconds — find the tool, run it, and get back to work.
Why your files never leave your browser.
Most online file tools upload your documents to remote servers — exposing your data to third parties and adding unnecessary latency. FixFile.online runs all compression, conversion, and repair logic directly inside your browser using WebAssembly and modern JavaScript APIs. Your files are processed locally on your own device. Nothing is ever transmitted, stored, or logged.
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Built by people who care about file formats
FixFile.online was founded in 2024 by a small team of software engineers with hands-on experience in file format specifications, compression algorithms, and browser-based processing. We've debugged PDF corruption issues, reverse-engineered archive formats, and studied the ZIP and PDF specifications end-to-end.
That practical knowledge drives every guide, fix, and tool we publish. We don't copy-paste generic advice — we test each solution ourselves first, document the edge cases, and update the content when format specifications change.
Every piece of content on this site follows a simple rule: only publish what actually works.
Our mission
File problems are universal and frustrating, and the existing help online is usually a wall of ads, a tool that demands your email, or instructions that upload your private documents to an unknown server.
We built FixFile.online to be the opposite: a calm, fast, honest place that respects your privacy and your time. Understand the cause. Apply the fix. Move on.
Get in touch
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