Is OmniConvert part of YRStack Softwares?

Yes. OmniConvert is proudly part of YRStack Softwares, an open-source suite of high-performance developer tools, productivity utilities, and privacy-first web applications engineered by Yassine Raddadi (@Apolake).

Are my files uploaded to any external server?

Never. OmniConvert operates 100% on the client side inside your web browser. All file transformations, rasterization, document parsing, and format transcoding are executed via WebAssembly, HTML5 Canvas, and local browser memory. Your files and metadata never leave your device.

What file formats can OmniConvert convert?

OmniConvert supports full cross-format conversion across Images, Documents, and Data files. Images include PNG, JPG/JPEG, WebP, AVIF, HEIC/HEIF (iPhone photos), SVG, ICO, BMP, and TIFF. Documents & Data include Microsoft Word DOCX, Excel XLSX/XLS, Adobe PDF, Rich Text Format (RTF), CSV, TSV, JSON, YAML, XML, and Markdown (MD).

How fast is in-browser file conversion compared to cloud tools?

In-browser conversion eliminates network upload and download round-trips entirely. Files transform in milliseconds using multi-threaded WebAssembly and native Canvas hardware acceleration, offering instantaneous results with zero queue or wait time, often 10x faster than cloud services.

Can I convert Word DOCX and Excel spreadsheets to PDF or CSV offline?

Yes. OmniConvert bundles modular document parsers (Mammoth, SheetJS/XLSX, and jsPDF) directly in browser memory. You can convert DOCX to formatted PDF, HTML, or Markdown, and convert XLSX spreadsheets directly into clean CSV, TSV, or structured JSON without Microsoft Office.

Can I convert multiple files at once and download a ZIP file?

Yes. Drag and drop dozens of mixed files into the conversion zone. You can set individual target formats per file or apply a unified target with one click. Once processed, click 'Download All (ZIP)' to receive a neatly packaged archive with your converted assets.

OmniConvert — Universal In-Browser File Converter

Supported File Formats

Images: PNG, JPG, JPEG, WebP, AVIF, HEIC, HEIF, SVG, ICO, BMP, TIFF, GIF
Documents: Microsoft Word DOCX, Rich Text RTF, Markdown MD, HTML, Adobe PDF
Spreadsheets & Data: Microsoft Excel XLSX, XLS, CSV, TSV, JSON, YAML, XML

Performance & Privacy Architecture Benchmark

Client-side WebAssembly execution eliminates 100% of network data upload latency.
End-to-end local data privacy: zero server logging, zero data retention.

Metric	OmniConvert (In-Browser)	Cloud Converters
Server Uploads	0% (100% Local)	100% Uploaded
Speed Multiplier	10x faster local processing	High latency network queues