Supported File Formats
Notes
Coeus reads .md (Markdown) files. All notes are stored in this format.
Images
Coeus can import and display: JPEG, PNG, GIF, WebP, HEIC.
Imported images are copied to your assets/ folder and can be used in chat attachment workflows.
Documents
| Format | What Coeus does with it |
|---|---|
Copies to assets/, creates a source entry in Sources, and extracts text for search and AI | |
| EPUB | Copies to assets/, creates a source entry in Sources, and extracts book text into searchable source sections for search and AI |
| TXT | Copies to assets/, imports as a source, and indexes text |
| CSV | Copies to assets/, imports as a source, and indexes content |
| JSON | Copies to assets/, imports as a source, and indexes content |
| Markdown (.md) | Treated as a note if in the notes folder, or as an attachment if imported separately |
Audio and Video
These formats can be transcribed:
| Format | Extension |
|---|---|
| MP3 | .mp3 |
| WAV | .wav |
| M4A / AAC | .m4a, .aac |
| MP4 / MOV | .mp4, .mov |
| OGG / OGA | .ogg, .oga |
| WebM | .webm |
| FLAC | .flac |
Transcription requires a transcription mode to be configured (local Whisper or OpenAI API). See Voice Transcription.
URLs
Coeus can fetch and import web pages. The content is extracted and saved as Markdown. Source URL is stored in frontmatter.
YouTube URLs are handled separately: Coeus downloads the audio and transcribes it.