List of sources
Below is summarized what sources will be observed within JOYS+ program
| Source | Instrument |
| NGC 1333 IRAS2A | MIRI-MRS & NIRSpec-IFU |
| NGC 1333 IRAS4A | MIRI-MRS & NIRSpec-IFU |
| NGC 1333 IRAS4B | MIRI-MRS & NIRSpec-IFU |
| B1-a | MIRI-MRS & NIRSpec-IFU |
| B1-b | MIRI-MRS & NIRSpec-IFU |
| B1-bS | MIRI-MRS & NIRSpec-IFU |
| B1-c | MIRI-MRS & NIRSpec-IFU |
| L1448-mm | MIRI-MRS & NIRSpec-IFU |
| L1448-IRS1 | MIRI-MRS & NIRSpec-IFU |
| ASR-106 | MIRI-MRS |
| IC348-MMS | MIRI-MRS |
| Per-emb 8 | MIRI-MRS NIRSpec-IFU |
| Per-emb 22 | MIRI-MRS & NIRSpec-IFU |
| Per-emb 33 | MIRI-MRS & NIRSpec-IFU |
| Per-emb 35 | MIRI-MRS & NIRSpec-IFU |
| Per-emb 55 | MIRI-MRS & NIRSpec-IFU |
| HH 211 | MIRI-MRS, NIRSpec-IFU, and NIRCam |
| L1527 | MIRI-MRS & NIRSpec-IFU |
| TMC1 | MIRI-MRS & NIRSpec-IFU |
| TMC1A | MIRI-MRS |
| Serpens SMM1 | MIRI-MRS |
| Serpens S68N | MIRI-MRS & NIRSpec-IFU |
| Serpens emb 8(N) | MIRI-MRS |
| Serpens SMM3 | MIRI-MRS & NIRSpec-IFU |
| SVS 4-5 | MIRI-MRS |
| BHR 71 | MIRI-MRS |
| WL20 | MIRI-MRS |
| G31.41+0.31 | MIRI-MRS |
| IRAS18089 | MIRI-MRS |
| IRAS 23385 | MIRI-MRS |
| G28 | MIRI-MRS |