Convert files between 100+ formats — PDF, images, audio, video, documents, and more. All conversions happen in your browser. No uploads, no signup, completely private.
Convert PDFs to Word, Excel, images, text, and more
Convert between JPG, PNG, WebP, HEIC, GIF, BMP, and more
Convert MP3, WAV, FLAC, OGG, AAC, M4A and more
Convert MP4, WebM, AVI, MOV and extract audio from video
Convert Word, Excel, PowerPoint, ODT, ODS and more
Every converter on Practical Web Tools uses WebAssembly (WASM) to process files directly in your browser. This means your files are never uploaded to a server — they stay on your device throughout the entire conversion process. This is fundamentally different from most online converters, which require you to upload your file to their servers.
Why does this matter? When you upload a file to a typical online converter, that file passes through servers you don't control. Your documents, photos, or business files could be stored, scanned, or intercepted. With our browser-based approach, the conversion happens entirely on your device — there's no server-side processing involved.
Yes, every converter on this page is 100% free with no hidden fees, no signup required, and no file size limits beyond what your browser can handle. There is no premium tier — all features are available to everyone.
No. Every converter processes your files locally in your browser using WebAssembly. Your files never leave your device. You can verify this by opening your browser's DevTools Network tab — you will not see any file upload requests.
We support 100+ format conversions across images (JPG, PNG, WebP, HEIC, GIF, BMP, TIFF), audio (MP3, WAV, FLAC, OGG, AAC, M4A), video (MP4, WebM, AVI, MOV), documents (PDF, Word, Excel, PowerPoint), and archives (ZIP, TAR, GZ).
The limit depends on your device's available memory since all processing happens in your browser. Most modern devices can handle files up to several hundred megabytes. There is no artificial file size cap.