Process Files,No Upload Needed
Your files never leave your browser. A local processing engine built on WebAssembly keeps every file safe, fast, and private.
One platform for all your needs
From PDF processing to format conversion, FileAssistant provides 17+ professional tools to cover all your file processing needs.
PDF Merge
Combine multiple PDF files into one, with drag-and-drop sorting
PDF Split
Split PDF documents by page range or fixed intervals
PDF Compress
Significantly reduce file size while maintaining quality
Format Conversion
Convert between Word, Excel, PPT and PDF
PDF Encryption
Add password protection to PDF for secure sharing
Image to PDF
Combine multiple images into a PDF document
Your files, only yours
FileAssistant uses browser-based local processing. Your files stay local from start to finish — never passing through any server, with zero risk of leakage. Close the page, and all traces are automatically cleared.
- Files never uploaded to servers
- Cache cleared automatically after processing
- No login required, start instantly
- Full offline support
Lightning fast, no waiting
A high-performance engine built on WebAssembly that processes files directly on your device. No upload/download wait times — processing is several times faster than traditional online tools.
- WebAssembly native performance
- Zero upload/download time
- Large file parallel processing
Smart recognition, auto-recommend
AI-native architecture that intelligently recognizes your uploaded file types and content features, automatically recommending the best processing solutions. Making file processing as simple as a conversation.
- Automatic content recognition
- Dynamic solution recommendations
- CJK typography optimization
- Smart batch task scheduling
Ready to get started?
No sign-up, no download — just open your browser. Your files, your control.