Can I use it from a mobile device?

Yes. The tool works fully functionally in smartphone and tablet browsers; it is especially ideal for opening email attachments received on a mobile device.

Can I edit the document I view?

Online File Viewer is for viewing purposes only; it does not include an editing function. To edit, you can use KolayDönüştür's other tools.

Online File Opener — PDF, DOCX, XLSX

Upload a file or drag and drop

Drag and drop — the file type is detected automatically.

DOCX · XLSX · UDF · PDF · EPUB · CSV · JSON · TXT · HEIC

You can pick or drag several files at once — each opens in its own tab.

💡 Good to know

Runs in your browser: Files are never uploaded to a server — GDPR/KVKK friendly.
No Office needed: DOCX/XLSX/UDF open even without Word, Excel or UYAP installed.
Review in bulk: Drag and drop several files at once; each opens in its own tab and you can switch between them with a single click — no need to pick the next file again.
For lawyers: Open a UDF quickly and read its contents. To convert it to PDF use UDF Studio.
Limit: Files over 50 MB may feel slow depending on available RAM.

Auto-deleted in 7 days

256-bit SSL

Support

Your files are encrypted with SSL and automatically deleted from our servers 7 days after processing.

📖 How to Use

Enter document/case

Paste text, upload PDF or fill form.

Pick type / perspective

Contract type, ruling type, or focus.

Analyze

AI extracts risks, gaps, and recommendations.

Download / share

**Not legal advice** — consult a lawyer.

Frequently asked questions

No. Uploaded files are only processed temporarily during the viewing process and are permanently deleted when the session is closed or the tab is closed.

Online File Viewer — DOCX, XLSX, UDF, PDF, EPUB, HEIC user reviews

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Online File Viewer — DOCX, XLSX, UDF, PDF, EPUB, HEIC