Privacy & Security
Your Files Never Leave Your Browser
Every conversion on converteo.app happens entirely on your device. No file is ever uploaded to a server. Here's what that means for your privacy — and why it matters.
What is browser-based file conversion?
Traditional online converters work by sending your file to a remote server, processing it there, and returning the result. Your document passes through infrastructure you don't control, owned by a company you may know nothing about.
Browser-based conversion is fundamentally different. The processing happens inside your own browser — using the same device you're sitting in front of. No data is transmitted. No account is required. The moment you close the tab, every trace of your file is gone.
Zero upload, zero exposure. Your PDF, your photos, your spreadsheets are processed locally by your browser and never touch our servers.
Why privacy matters when converting files
Think about the files you convert every day: contracts, invoices, medical documents, personal photos, financial statements. These aren't files you'd email to a stranger. Yet when you use a server-based converter, that's effectively what you're doing.
The risks are real. Some converters retain uploaded files for days or weeks. Others have been found to store and even sell document content. Under GDPR and similar regulations, you remain responsible for where your data goes — even when you use a third-party tool.
Explore the guides
Local vs Cloud Conversion
A side-by-side comparison of browser-based and server-based file conversion — privacy, performance, and when to use each.
Risks of Online Converters
What really happens when you upload a file to a traditional online converter? Data retention, GDPR exposure, and more.
How Browser-Based Conversion Works
The File API, WebAssembly, Canvas API — a clear technical explanation of how your files are processed locally with no server involved.
Try the tools yourself
All of converteo.app's conversion tools run entirely in your browser. No sign-up, no file upload, no hidden processing on remote servers.