Help & FAQ

Everything you need to know about converting files with ConvertX — privacy, limits, quality and supported formats.

Frequently asked questions

Yes — every converter is free, with no sign-up, no watermark and no hidden limits. The service is supported by unobtrusive ads, and the core tools will stay free.

Privacy comes first. Whenever your browser can handle the conversion it runs entirely on your device and nothing is uploaded. When a conversion needs our server, the transfer is encrypted, processed in an isolated job and deleted automatically shortly after.

You can convert files up to 500 MB each. For very large files a stable connection helps the upload and download finish reliably.

No. ConvertX runs in your web browser on any device — desktop, tablet or phone. There is nothing to download or install.

Hundreds, across images, audio, video, documents, archives, 3D models, fonts, subtitles and GIS data. Browse the categories below or use the search on the converters page to find a specific conversion.

We pick sensible, quality-first defaults. Lossless targets keep the original quality exactly; for lossy formats we use a high-quality setting so the result stays as close to the source as the format allows.