What is Fluxcut?
Fluxcut is a workflow for making product demo videos from screen recordings and screenshots, either with an agent such as Claude Code, Codex or Grok Build, or by directing the process yourself in the app. It develops a brief into a shot timeline and line-by-line script, then adds voiceover, music and a thumbnail before assembling a downloadable 1080p MP4. You approve work at checkpoints, and changes remake only the pieces they affect. The free tier includes two videos per month up to 60 seconds; paid tiers support longer videos.
Fluxcut Features:
Brief-Based Planning: A brief captures the video's title, intended audience, problems and value, and serves as the starting point for the rest of the workflow.
Product Screen Capture: An agent can film your product on your computer, including signed-in screens in a window where you sign in yourself, or you can upload or record shots in the app.
Shot-Level Scripts: The timeline orders footage into shots with set durations, while the script provides one spoken line per shot for you to review and revise.
Voiceover Quality Checks: Each script line is recorded as a separate take, with options for voice, delivery and pace; takes are checked for fit, loudness and clipping.
Music and Thumbnail: Fluxcut composes a music bed to match the video's length and drafts three thumbnail concepts from the brief for you to choose from.
Approval-Based Export: Approved picture and sound are assembled into a 1080p MP4, with loudness levelled for the platform, and publishing waits for your go-ahead.
Fluxcut Benefits:
Less Rework: Changing one script line or take does not require rebuilding unrelated parts, so approved work can remain intact through revisions.
Clear Review Points: You can check shots and scripts before voiceover, and keep the final video from going out until you have approved it.
Fewer Audio Surprises: Checks for timing, loudness, clipping and room under the music help catch problems before you review a take.
Repeatable Final Cuts: The same approved pieces produce the same assembled file, making the final export predictable when the underlying content has not changed.
Flexible Control: You can hand drafting and filming to an agent or run the process yourself, without needing an agent to make a video.
Use Cases:
Product Launch Demo: Founders can turn a product brief and screen recordings into a guided demo video that explains the product's value to a target audience.
Signed-In Product Walkthrough: A team can show product screens that require a login by filming in a window where a person signs in themselves.
Short-Form Promotion: Marketers can prepare vertical videos for Shorts, TikTok or Reels, with the format and length set for the intended channel.
YouTube or X Publishing: A creator can export a finished demo with its thumbnail, title and description ready for posting to YouTube or X.
Targeted Video Updates: When a product detail or script line changes, teams can revise the affected part of a draft without remaking unrelated approved pieces.