Private file converter that runs in your browser
About ConvertOP
ConvertOP is a universal file converter that runs entirely in your browser. Files are processed on your own device with WebAssembly, the Canvas API, Web Audio and PDF.js, so nothing is uploaded and there's no upload or download wait. It handles images (PNG, JPG, WebP, GIF, BMP, TIFF), PDFs and text extraction, audio (MP3, WAV, OGG, M4A, FLAC) and video (MP4, WebM, GIF), with batch conversion and no file-size cap beyond your device's memory. Free and unlimited with no account; installable as a PWA for offline use.
PlatformsWeb
✓ VerifiedOct 21, 2026
Key features
- Converts files locally in the browser with no uploads
- Images: PNG, JPG, WebP, GIF, BMP, TIFF
- PDF conversion and text extraction
- Audio: MP3, WAV, OGG, M4A, FLAC
- Video: MP4, WebM, GIF
- Batch conversion
- No account required
- Installable PWA that works offline
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