n8n LassoCut Workflow: Remove Photo Backgrounds in Forms

Remove photo backgrounds from an uploaded image—right inside your n8n form

The n8n LassoCut Workflow: Remove Photo Backgrounds in Forms lets your users upload a photo through an n8n Form Trigger, choose a background color and output size, and instantly receive a downloadable PNG cut-out. If processing fails (e.g., invalid key or insufficient credits), the workflow shows an error message on the completion page.

What this workflow does

• Collects input via n8n Forms: Receives a photo upload plus a selected background and size through an n8n Form Trigger.
• Processes the image with LassoCut: Sends the uploaded image to LassoCut to remove the background by mapping the selected background to a hex color and selecting preview or full-size processing based on your size choice.
• Returns a downloadable result: When processing succeeds, it returns the background-removed cut-out to the browser as a PNG.
• Handles failures cleanly: If LassoCut returns an error (for example, invalid key or insufficient credits), the workflow displays the error message on a completion page.

Use cases

• E-commerce teams: Let customers or internal staff upload product images and download background-free PNGs for listings.
• Design operations: Quickly generate cut-outs for ads, landing pages, and catalog updates.
• SaaS operators: Build a simple self-serve “upload → process → download” form flow using n8n automations.

Technical details

• LassoCut integration: Uses the community node package n8n-nodes-lassocut.
• Credentials: Add your LassoCut API key as an n8n credential for the LassoCut node.
• Workflow logic: Includes nodes such as set, code, limit, filter, and http request, with supporting notes via sticky note.
• Setup: Execute the workflow and use the generated form test URL to upload a photo and receive the processed download.