Cap

Cap is an open source alternative to Loom. It's a video messaging tool that allows you to record, edit and share videos in seconds.

Cap is an open source screen recording alternative to Loom for macOS and Windows that lets you capture your screen and camera, then edit recordings locally or share them through Cap Web. It includes instant recording for quick shareable links, plus a Studio mode with a timeline editor, smart auto zoom, multiple layouts, custom branding, cursor and background customization, and recording up to 4K at 60 fps.

For collaboration and hosting, Cap Web supports link based playback with embeds and threaded, timestamp linked comments, and it can be self hosted on your own infrastructure (for example via Docker or Railway). Cap can also be connected to your own S3 compatible storage and custom domain, and optional paid features include transcriptions, AI generated titles and summaries, chapters, viewer analytics, and password protection. Cap Desktop is free to use, but commercial use requires a commercial license.