Help Center
Guides & FAQs
Are my files uploaded to a server?
No. Every FileFlex tool runs entirely in your browser. Your files are read locally and processed on your device — they are never sent to any server.
Is FileFlex really free?
Yes. All tools are free with no signup, no watermarks and no limits. Supported by optional ads you can decline.
Do I need to install anything?
No installation required. FileFlex works in any modern browser on desktop or mobile.
Which file formats are supported?
PDF tools support standard PDF files. Image tools handle JPG, PNG, WebP and HEIC. Office tools support .docx, .xlsx and .csv.
Does it work offline?
Once the page is loaded, processing happens locally so your file operations don't need a network connection.
Is my data tracked?
FileFlex does not track your files or their contents. We may use privacy-friendly analytics and ads only if you accept cookies.
Can I use FileFlex on mobile?
Yes. The interface is mobile-first and fully responsive. All tools work on phones and tablets.