Capture a note, link, image, or document

Follow the steps

1. 1

   Open Inbox or Library and choose Capture an idea.

2. 2

   Choose Note, Link, or Image or document. A note needs a title; a link also needs a safe external URL; an upload uses a local file.

3. 3

   Add optional notes, comma-separated tags, and a collection, then choose Save idea. New captures go to the inbox until you move them out.

4. 4

   Open the item later to edit its context, add it to a canvas, extract a palette from an uploaded image, or start document extraction.

5. 5

   When automatic smart tags are enabled, a new capture can queue tagging automatically. Successful tags are added to the saved item and can be edited or removed immediately.

What to know

• The server upload allowlist currently includes JPEG, PNG, WebP, GIF, PDF, plain text, Markdown, DOCX, PPTX, and XLSX MIME types.
• Uploaded files are stored as file or image assets. Binary uploads use the session-authenticated upload flow; the personal REST capture endpoint accepts an externally hosted image URL instead.
• A link must use a safe external URL. The API rejects unsupported or unsafe URLs rather than treating them as ordinary text.
• Smart tagging sends only the item title, up to 8,000 characters of saved text, current tags and, for a stored image, a sanitized 512-pixel thumbnail. It does not scan the rest of the library, fetch a remote source URL or run routine OCR.

Troubleshooting

• If a file is rejected, check both its MIME type and size. The API accepts files from 1 byte through 20 MB.
• If a link will not save, include an https or other accepted external URL and remove local-file or unsupported URL schemes.
• If the item is not in Library, open Inbox or clear the collection/type/search filters. New captures default to inbox=true.