Any file up to 500 MB. Drop several files and they come back as one ZIP. Many image, audio and video conversions run in your browser; anything else is uploaded and removed within the hour.
ConvertX.am converts OTS files to PDF online, for free and without signing up. Upload a file of up to 500 MB and download the PDF result; uploaded and converted files are deleted automatically within about an hour.
Convert your OpenOffice Calc Template (OTS) documents into universally readable PDF files instantly. This conversion is essential for sharing standardized spreadsheet layouts without risking accidental edits.
OTS is a template format designed for Calc spreadsheets, containing preset formatting, styles, and formulas. When you convert an OTS document to PDF, the layout is captured as a fixed-page document, locking in cell positions, borders, and typography so it appears identical on any device.
The conversion between these document formats is completely lossless, meaning your visual layout and data remain fully intact. The resulting file size changes only insignificantly during the process.
We built this project so anyone can convert files without paywalls, accounts, or hidden limits. Here is what that promise means in practice.
Every converter on ConvertX is free to use: no trials, no premium tiers, and no credit packs. We will never put core conversion features behind a subscription. Whether you convert one photo or a hundred files a week, the price stays zero.
Many image, audio, and video conversions run entirely in your browser. Your files never leave your device for those jobs. When server processing is required for documents or specialized formats, uploads are handled securely and removed automatically — typically within one hour.
A quick guide to strengths and trade-offs of popular formats — so you pick the right one before converting.
Office files, PDFs, ebooks, and plain text.
Common extensions: PDF, DOCX, XLSX, PPTX, ODT, EPUB, TXT
Raster and vector graphics for web, print, and photography.
Common extensions: PNG, JPG, WebP, AVIF, GIF, SVG, HEIC, TIFF
Clips, streams, screen recordings, and movies.
Common extensions: MP4, WebM, MOV, MKV, AVI, MPEG
Music, podcasts, voice recordings, and sound effects.
Common extensions: MP3, WAV, FLAC, OGG, AAC, M4A, OPUS
