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.
Convert your OpenDocument Text files to Rich Text Format effortlessly. This tool is ideal for users who need to move documents from OpenOffice or LibreOffice to environments that prioritize RTF compatibility.
ODT is an XML-based open standard format used primarily by LibreOffice, while RTF is a cross-platform document format developed by Microsoft that stores text and formatting information in a plain-text structure. When converting ODT to RTF, the structure of your document is mapped from the XML schema to the RTF control word syntax, ensuring that text, fonts, and basic paragraph styles remain intact.
The conversion is lossless, meaning all your document content is preserved completely without degradation to text clarity or layout integrity.
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
