Bulk 3GA to M4B Converter Online — Free HD Quality
Drag and drop your multiple 3GA files into this 100% free online 3GA to M4B converter (.3ga to .m4b), and click the Convert button to bulk convert them to M4B format in HD quality. Use the quality slider to fine-tune your M4B output, then download your converted files one by one or as a single ZIP — no signup and no downloads needed, and your original 3GA files are removed from our servers right after. Also see:How to convert MIDI to OGG online?.
Drop your 3GA files here to convert to M4B, or click to browse
Converts .3ga to M4B (.m4b) in HD quality — bulk, free, no signup
Choose Files3GA vs M4B — File Format Comparison
See how 3GA and M4B compare across file extension, MIME type, compression, and feature support. Related:Convert multiple 3GA to AIFC at once.
| Feature | 3GA | M4B |
|---|---|---|
| File Extension | .3ga | .m4b |
| MIME Type | audio/3gpp | audio/mp4 |
| Compression Type | Lossy | Lossy |
| Metadata Support | Yes | Yes |
What Is 3GA Format?
3GPP Audio — audio-only 3GPP mobile container carrying AMR or AAC audio, created by Android and older Nokia/Samsung phones for voice recordings and audio messages.
- Compression: Lossy
- Tags & Metadata: Supported
What Is M4B Format?
MPEG-4 Audiobook — AAC audio in an MP4 container with bookmarking support, the standard format for audiobooks on Apple Books, Audible exports, and iPhone podcasts.
- Compression: Lossy
- Tags & Metadata: Supported