100% Privacy-First Guarantee
At ZappyFile.com, we believe your personal and business documents belong only to you.
1. Browser-Direct Processing (Zero Upload)
Over 90% of ZappyFile tools (including Merge PDF, Split PDF, PDF to JPG, Image Compression, HEIC Conversion, Passport Photo Maker, Audio Cutter, and Video Frame Extraction) execute 100% inside your own device's web browser using HTML5 and WebAssembly. Your files never leave your computer or phone.
2. In-Memory & 15-Minute Auto-Cleanup for C# Server Tools
For advanced C# server tools (such as PDF Password Encryption via PDFsharp or PDF-to-Excel extraction via PdfPig), files are processed directly in RAM (`MemoryStream`) and returned immediately to your browser. Any temporary cache files are automatically wiped every 15 minutes by our `TempFileCleanupService`.