| Image | Note | Platform | License | Source |
|---|---|---|---|---|
| img2bmp | GIF/PNG/JPG/... to BMP | Win(NF2+) | MIT | - |
| pgm2png | PGM(P5) to PNG(alpha) | Win(NF2+) | MIT | - |
| Sound | Note | Platform | License | Source |
| ogg2wav | OGG(Vorbis) to WAV(16bit PCM) | Win | 3-BSD | - |
| wav2ogg | WAV(16bit PCM) to OGG(Vorbis) | Win | 3-BSD | - |