Bulk MIDI to M4R Converter Online — Free HD Quality
Drag and drop your multiple MIDI files into this free online MIDI to M4R converter (.midi to .m4r), and click the Convert button to bulk convert them to M4R format in HD quality. Use the quality slider to fine-tune your M4R output, then download your converted files one by one or as a single ZIP — your original MIDI files are removed from our servers right after.
Drop images here or click to browse
PNG, JPG, WebP, GIF, HEIC, RAW, PSD, SVG and more
Max 100MB per file
MIDI vs M4R — File Format Comparison
| Feature | MIDI | M4R |
|---|---|---|
| File Extension | .midi | .m4r |
| MIME Type | audio/midi | audio/mp4 |
| Compression Type | Varies | Lossy |
| Metadata Support | Yes | Yes |
What Is MIDI Format?
MIDI File (long extension) — the .midi variant of the MIDI format carrying the same musical note-event data as .mid; synthesised to audio via fluidsynth with a General MIDI soundfont at 44100 Hz.
- Compression: Varies
- Tags & Metadata: Supported
What Is M4R Format?
iPhone Ringtone — AAC audio in an MP4 container under 40 seconds, the format iTunes and iPhone use for custom ringtones; identical to M4A in encoding but recognised by iOS as a ringtone file.
- Compression: Lossy
- Tags & Metadata: Supported
Related Converters
- How to convert AIFF to WebP?
- Convert CAF to OGG free
- How do I change DCR to PAM?
- DDS to ICO conversion
- Mass MEF to PBM conversion
- Bulk convert MID to Android Audio
- Convert MIDI files in bulk to WMA
- Change MP2 files to AIFC
- Best MP2 to WAV converter online
- Change OGA files to 3GA
- Mass ORF to PAM conversion
- Easy PPM to WBMP converter
- Convert multiple PSB to JPG
- How to batch convert WAVE to RAS?
- See all MIDI conversions
- Convert other formats to M4R
- Explore Audio converters
- Free online file converters