M4B converter & tools
98 free browser-based tools for working with M4B (M4B) files — convert to and from other formats, compress, and trim. Everything runs locally in your browser: no uploads, no signup, no watermarks.
M4B is an MPEG-4 audio format used for audiobooks and podcasts, supporting chapters, bookmarking, and AAC audio encoding.
Convert M4B to other formats (20)
- Convert M4B to AAC — Free Online Tool
- Convert M4B to AC3 — Free Online Tool
- Convert M4B to AIF — Free Online Tool
- Convert M4B to AIFC — Free Online Tool
- Convert M4B to AIFF — Free Online Tool
- Convert M4B to ALAC — Free Online Tool
- Convert M4B to AMR — Free Online Tool
- Convert M4B to AU — Free Online Tool
- Convert M4B to CAF — Free Online Tool
- Convert M4B to DSS — Free Online Tool
- Convert M4B to FLAC — Free Online Tool
- Convert M4B to J2B — Free Online Tool
- Convert M4B to M4A — Free Online Tool
- Convert M4B to MP3 — Free Online Tool
- Convert M4B to OGA — Free Online Tool
- Convert M4B to OGG — Free Online Tool
- Convert M4B to VOC — Free Online Tool
- Convert M4B to WAV — Free Online Tool
- Convert M4B to WEBA — Free Online Tool
- Convert M4B to WMA — Free Online Tool
Convert other formats to M4B (76)
- Convert 3G2 to M4B — Free Online Tool
- Extract Audio from 3G2 to M4B — Free Online Tool
- Convert 3GP to M4B — Free Online Tool
- Extract Audio from 3GP to M4B — Free Online Tool
- Convert 3GPP to M4B — Free Online Tool
- Extract Audio from 3GPP to M4B — Free Online Tool
- Convert AAC to M4B — Free Online Tool
- Convert AC3 to M4B — Free Online Tool
- Convert AIF to M4B — Free Online Tool
- Convert AIFC to M4B — Free Online Tool
- Convert AIFF to M4B — Free Online Tool
- Convert ALAC to M4B — Free Online Tool
- Convert AMR to M4B — Free Online Tool
- Convert AU to M4B — Free Online Tool
- Convert AVI to M4B — Free Online Tool
- Extract Audio from AVI to M4B — Free Online Tool
- Convert CAF to M4B — Free Online Tool
- Convert CAVS to M4B — Free Online Tool
- Extract Audio from CAVS to M4B — Free Online Tool
- Convert DSS to M4B — Free Online Tool
- Convert DV to M4B — Free Online Tool
- Extract Audio from DV to M4B — Free Online Tool
- Convert DVR to M4B — Free Online Tool
- Extract Audio from DVR to M4B — Free Online Tool
- Convert FLAC to M4B — Free Online Tool
- Convert FLV to M4B — Free Online Tool
- Extract Audio from FLV to M4B — Free Online Tool
- Convert HEVC to M4B — Free Online Tool
- Extract Audio from HEVC to M4B — Free Online Tool
- Convert J2B to M4B — Free Online Tool
- Convert M2TS to M4B — Free Online Tool
- Extract Audio from M2TS to M4B — Free Online Tool
- Convert M4A to M4B — Free Online Tool
- Convert M4V to M4B — Free Online Tool
- Extract Audio from M4V to M4B — Free Online Tool
- Convert MKV to M4B — Free Online Tool
- Extract Audio from MKV to M4B — Free Online Tool
- Convert MOD to M4B — Free Online Tool
- Extract Audio from MOD to M4B — Free Online Tool
- Convert MOV to M4B — Free Online Tool
- Extract Audio from MOV to M4B — Free Online Tool
- Convert MP3 to M4B — Free Online Tool
- Convert MP4 to M4B — Free Online Tool
- Extract Audio from MP4 to M4B — Free Online Tool
- Convert MPEG to M4B — Free Online Tool
- Extract Audio from MPEG to M4B — Free Online Tool
- Convert MPG to M4B — Free Online Tool
- Extract Audio from MPG to M4B — Free Online Tool
- Convert MTS to M4B — Free Online Tool
- Extract Audio from MTS to M4B — Free Online Tool
- Convert MXF to M4B — Free Online Tool
- Extract Audio from MXF to M4B — Free Online Tool
- Convert OGA to M4B — Free Online Tool
- Convert OGG to M4B — Free Online Tool
- Convert RM to M4B — Free Online Tool
- Extract Audio from RM to M4B — Free Online Tool
- Convert RMVB to M4B — Free Online Tool
- Extract Audio from RMVB to M4B — Free Online Tool
- Convert SWF to M4B — Free Online Tool
- Extract Audio from SWF to M4B — Free Online Tool
- Convert TS to M4B — Free Online Tool
- Extract Audio from TS to M4B — Free Online Tool
- Convert VOB to M4B — Free Online Tool
- Extract Audio from VOB to M4B — Free Online Tool
- Convert VOC to M4B — Free Online Tool
- Convert WAV to M4B — Free Online Tool
- Convert WEBA to M4B — Free Online Tool
- Convert WMA to M4B — Free Online Tool
- Convert WMV to M4B — Free Online Tool
- Extract Audio from WMV to M4B — Free Online Tool
- Convert WTV to M4B — Free Online Tool
- Extract Audio from WTV to M4B — Free Online Tool
- Convert WebM to M4B — Free Online Tool
- Extract Audio from WebM to M4B — Free Online Tool
- Convert Y4M to M4B — Free Online Tool
- Extract Audio from Y4M to M4B — Free Online Tool
Compress & edit M4B (2)
Looking for something else? Browse all audio tools or the full tool directory.