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 M4A audio files into the open-source OGG container format instantly. This tool is ideal for developers and users who need compatibility with Linux-based systems or specific game engines.
M4A is an Apple-developed media container typically using AAC compression, while OGG is a versatile, patent-free container often paired with the Vorbis or Opus codecs. During this conversion, the audio stream is repackaged or re-encoded to fit the OGG structure. While both formats are highly efficient at retaining audio fidelity, the transition allows your files to be played in environments that favor open-standard codecs over proprietary Apple-centric formats.
Since both formats use lossy compression, the conversion preserves the original audio quality without significant generation loss, provided the bitrate is maintained.
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.
Music, podcasts, voice recordings, and sound effects.
Common extensions: MP3, WAV, FLAC, OGG, AAC, M4A, OPUS
Raster and vector graphics for web, print, and photography.
Common extensions: PNG, JPG, WebP, AVIF, GIF, SVG, HEIC, TIFF
Office files, PDFs, ebooks, and plain text.
Common extensions: PDF, DOCX, XLSX, PPTX, ODT, EPUB, TXT
Clips, streams, screen recordings, and movies.
Common extensions: MP4, WebM, MOV, MKV, AVI, MPEG
