FLUX-fill standalone

Generate AI-powered image fills directly from your browser with the FLUX-fill standalone workflow. This n8n automation connects a user-facing HTML editor page with the FLUX AI image generation service, allowing users to upload an image, define a fill area, and receive the generated content back in real-time. The process begins with a webhook trigger that initiates the FLUX Fill request, then intelligently polls the FLUX service using HTTP requests to check the status of the image generation. Once the AI fill is ready, the workflow retrieves the final image and displays it directly to the user through another webhook response. This workflow is ideal for designers, marketers, and content creators who need quick, iterative AI image enhancements without leaving their browser, significantly reducing the time and manual effort typically involved in image editing and content creation workflows.

18 nodeswebhook trigger240 views0 copiesAI

Workflow JSON

{"id": "OvuZIXwt9mdU2JGK", "meta": {"instanceId": "fb924c73af8f703905bc09c9ee8076f48c17b596ed05b18c0ff86915ef8a7c4a", "templateCredsSetupCompleted": true}, "name": "FLUX-fill standalone", "tags": [], "nodes": [{"id": "9f051c89-0243-48fb-baa4-666af3fe54b3", "name": "Merge", "type": "n8n-nodes-base.merge", "position": [940, 120], "parameters": {"mode": "combine", "options": {}, "combineBy": "combineByPosition"}, "typeVersion": 3}, {"id": "5da963f7-4320-4359-aefa-bf8f6d6ef815", "name": "Respond to Webhook", "type": "n8n-nodes-base.respondToWebhook", "position": [1520, 120], "parameters": {"options": {}, "respondWith": "text", "responseBody": "={{ $json.html }}"}, "typeVersion": 1.1}, {"id": "05d877bc-b591-478c-b112-32b7efe1ca3f", "name": "Wait 3 sec", "type": "n8n-nodes-base.wait", "position": [920, 680], "webhookId": "90f31c1f-6707-4f2f-b525-d3961432cd81", "parameters": {"amount": 3}, "typeVersion": 1.1}, {"id": "a3cc4a50-4218-4a01-ab20-151fd707dd66", "name": "Is Ready?", "type": "n8n-nodes-base.if", "position": [1340, 680], "parameters": {"options": {}, "conditions": {"options": {"version": 2, "leftValue": "", "caseSensitive": true, "typeValidation": "strict"}, "combinator": "and", "conditions": [{"id": "3cf5b451-9ff5-4c2a-864f-9aa7d286871a", "operator": {"name": "filter.operator.equals", "type": "string", "operation": "equals"}, "leftValue": "={{ $json.status }}", "rightValue": "Ready"}]}}, "typeVersion": 2.2}, {"id": "76a2dcd4-0e57-461d-a8b9-8f52baa3f86a", "name": "Sticky Note", "type": "n8n-nodes-base.stickyNote", "position": [520, -100], "parameters": {"width": 1193, "height": 479, "content": "# Deliver the editor with links to the images"}, "typeVersion": 1}, {"id": "b32e8e0b-a449-47d9-8de4-c0062235ff99", "name": "FLUX Fill", "type": "n8n-nodes-base.httpRequest", "position": [660, 680], "parameters": {"url": "https://api.bfl.ml/v1/flux-pro-1.0-fill", "method": "POST", "options": {}, "sendBody": true, "authentication": "genericCredentialType", "bodyParameters": {"parameters": [{"name": "prompt", "value": "={{ $json.body.prompt }}"}, {"name": "steps", "value": "={{ $json.body.steps }}"}, {"name": "prompt_upsampling", "value": "={{ $json.body.prompt_upsampling }}"}, {"name": "guidance", "value": "={{ $json.body.guidance }}"}, {"name": "output_format", "value": "png"}, {"name": "safety_tolerance", "value": "6"}, {"name": "image", "value": "={{ $json.body.image.split(',')[1] }}"}, {"name": "mask", "value": "={{ $json.body.mask.split(',')[1] }}"}]}, "genericAuthType": "httpHeaderAuth"}, "credentials": {"httpHeaderAuth": {"id": "", "name": "[Your httpHeaderAuth]"}}, "typeVersion": 4.2}, {"id": "d7d70191-5316-4f20-b570-b8f138b77762", "name": "Check FLUX status", "type": "n8n-nodes-base.httpRequest", "position": [1120, 680], "parameters": {"url": "https://api.bfl.ml/v1/get_result", "options": {}, "sendQuery": true, "authentication": "genericCredentialType", "genericAuthType": "httpHeaderAuth", "queryParameters": {"parameters": [{"name": "id", "value": "={{ $json.id }}"}]}}, "credentials": {"httpHeaderAuth": {"id": "", "name": "[Your httpHeaderAuth]"}}, "typeVersion": 4.2}, {"id": "dafc2712-114f-4723-b587-08ff853513f5", "name": "Get Fill Image", "type": "n8n-nodes-base.httpRequest", "position": [1560, 780], "parameters": {"url": "={{ $json.result.sample }}", "options": {}}, "typeVersion": 4.2}, {"id": "68672890-62c3-4020-a09c-9ea691cba361", "name": "Show the image to user", "type": "n8n-nodes-base.respondToWebhook", "position": [1900, 780], "parameters": {"options": {"responseHeaders": {"entries": [{"name": "Content-Type", "value": "={{ $binary.data.mimeType }}"}]}}, "respondWith": "binary", "responseDataSource": "set"}, "typeVersion": 1.1}, {"id": "7546ce49-56e9-44fd-96fd-324831f38f32", "name": "Sticky Note1", "type": "n8n-nodes-base.stickyNote", "position": [560, 420], "parameters": {"color": 4, "width": 1142, "height": 502, "content": "# Image processing part"}, "typeVersion": 1}, {"id": "cee89c8c-7b88-4cc5-84e4-eb7b404e5042", "name": "Sticky Note2", "type": "n8n-nodes-base.stickyNote", "position": [1720, 660], "parameters": {"width": 506, "height": 272, "content": "# Send back edited image\n## Add extra steps to save an edited image"}, "typeVersion": 1}, {"id": "a340cd78-56dd-4ac8-a1c1-f3fc03771ae6", "name": "Mockups", "type": "n8n-nodes-base.set", "position": [660, 220], "parameters": {"options": {}, "assignments": {"assignments": [{"id": "20c39c67-3cf8-4e29-b871-3202f2e20a3c", "name": "Images", "type": "array", "value": "={{\n[\n{\"url\":\"https://byuroscope.fra1.digitaloceanspaces.com/nc/uploads/noco/fluxtest/creative-arrangement-minimalist-podium_23-2148959328.jpg\",\n \"title\":\"Stage\" },\n{\"url\":\"https://byuroscope.fra1.digitaloceanspaces.com/nc/uploads/noco/fluxtest/Standing-Big-Paper-Bag-Mockup.jpg\",\n \"title\":\"Paper Bag\" },\n{\"url\":\"https://byuroscope.fra1.digitaloceanspaces.com/nc/uploads/noco/fluxtest/Ceramic-Mug-on-Table-Mockup.jpg\",\n \"title\":\"Big Mug\" },\n{\"url\":\"https://byuroscope.fra1.digitaloceanspaces.com/nc/uploads/noco/fluxtest/Transparent-Bottle-on-Sunny-Beach-Mockup-D.jpg\",\n \"title\":\"Transparent-Bottle\" },\n{\"url\":\"https://byuroscope.fra1.digitaloceanspaces.com/nc/uploads/noco/fluxtest/skin-products-arrangement-wooden-blocks_23-2148761445.jpg\",\n \"title\":\"Cosmetics\" }\n]\n}}"}]}}, "typeVersion": 3.4}, {"id": "da82cb73-af4a-4042-bf4e-17894155fb87", "name": "Webhook", "type": "n8n-nodes-base.webhook", "position": [260, 120], "webhookId": "9c864ee6-e4d3-46e7-98d4-bea43739963e", "parameters": {"path": "flux-fill", "options": {}, "responseMode": "responseNode", "multipleMethods": true}, "typeVersion": 2}, {"id": "0f35da2f-112c-45f9-9cbe-d64eb8bdc6d8", "name": "Editor page", "type": "n8n-nodes-base.html", "position": [1240, 120], "parameters": {"html": "<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n <meta charset=\"UTF-8\">\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n <title>Konva Image Editor</title>\n <script src=\"https://unpkg.com/konva@9/konva.min.js\"></script>\n <script defer src=\"https://unpkg.com/img-comparison-slider@8/dist/index.js\"></script>\n <link rel=\"stylesheet\" href=\"https://unpkg.com/img-comparison-slider@8/dist/styles.css\" />\n <link rel=\"stylesheet\" href=\"https://cdn.jsdelivr.net/gh/ed-parsadanyan/n8n-flux-fill-demo/flux-fill-style.css\" />\n <script src=\"https://cdn.jsdelivr.net/gh/ed-parsadanyan/n8n-flux-fill-demo/flux-fill-canvas.js\"></script>\n</head>\n<body>\n <div class=\"controls-wrapper\">\n <div class=\"left-panel\">\n <div class=\"image-controls\">\n <select id=\"imageSelector\">\n <option value=\"\">Select an image...</option>\n <option value=\"local\">Load from PC...</option>\n </select>\n <input type=\"file\" id=\"fileInput\" style=\"display: none\" accept=\"image/*\">\n <button id=\"clearButton\">Clear All</button>\n </div>\n \n <div class=\"brush-controls\">\n <label for=\"brushSize\" title=\"Use mouse wheel to adjust brush size\">Brush Size:</label>\n <div class=\"slider-container\">\n <input type=\"range\" id=\"brushSize\" min=\"5\" max=\"40\" value=\"20\">\n <span class=\"slider-value\" id=\"brushSizeValue\">20px</span>\n </div>\n </div>\n </div>\n\n <div class=\"right-panel\">\n <div class=\"prompt-row\">\n <input type=\"text\" id=\"promptInput\" placeholder=\"Enter your prompt (optional)\">\n </div>\n \n <div class=\"main-controls\">\n <label class=\"checkbox-container\">\n <input type=\"checkbox\" id=\"improvePrompt\" checked>\n <span>Improve prompt</span>\n </label>\n \n <div>\n <button id=\"sendButton\">Generate</button>\n <span class=\"loading\" id=\"loadingIndicator\">Processing...</span>\n </div>\n </div>\n \n <div class=\"parameters\">\n <div class=\"slider-container\">\n <label for=\"stepsSlider\">Steps:</label>\n <input type=\"range\" id=\"stepsSlider\" min=\"15\" max=\"50\" value=\"40\">\n <span class=\"slider-value\" id=\"stepsValue\">40</span>\n </div>\n \n <div class=\"slider-container\">\n <label for=\"guidanceSlider\">Guidance:</label>\n <input type=\"range\" id=\"guidanceSlider\" min=\"1.5\" max=\"100\" value=\"60\" step=\"0.1\">\n <span class=\"slider-value\" id=\"guidanceValue\">60.0</span>\n </div>\n </div>\n </div>\n </div>\n\n <div class=\"info\" id=\"imageInfo\"></div>\n <div id=\"container\"></div>\n <div id=\"cursor\"></div>\n\n <div id=\"resultModal\" class=\"modal\">\n <div class=\"modal-content\">\n <div class=\"modal-image-container\">\n <div class=\"comparison-container\">\n <div class=\"image-container\">\n <img class=\"image-before\" id=\"originalImage\" src=\"\" alt=\"Original\">\n <img class=\"image-after\" id=\"resultImage\" src=\"\" alt=\"Generated\">\n </div>\n <input type=\"range\" min=\"0\" max=\"100\" value=\"10\" class=\"slider\">\n <div class=\"slider-line\"></div>\n <div class=\"slider-button\" aria-hidden=\"true\">\n &lt; &gt;\n </div>\n <div class=\"labels\">\n <div class=\"label-before\">Original</div>\n <div class=\"label-after\">Generated</div>\n </div>\n </div>\n </div>\n <div class=\"modal-buttons\">\n <button id=\"reuseButton\">Use Generated</button>\n <button id=\"saveButton\">Save Image</button>\n <button id=\"closeButton\">Close</button>\n </div>\n </div>\n </div>\n\n<script>\n const urlParams = new URLSearchParams(window.location.search);\n const pageId = urlParams.get('id');\n\n // Image data will be populated by n8n\n const imageData = {{ JSON.stringify($json.Images,'',2) }};\n const webhookUrl = '{{ $json.webhookUrl }}';\n\n // Initialize the editor when the page loads\n document.addEventListener('DOMContentLoaded', function() {\n initializeEditor({\n images: imageData,\n webhookUrl: webhookUrl,\n pageId: pageId\n });\n });\n</script>\n</body>\n</html>\n"}, "typeVersion": 1.2}, {"id": "2ff87261-8a7f-451e-b8ae-b4274776ce28", "name": "Sticky Note3", "type": "n8n-nodes-base.stickyNote", "position": [540, 20], "parameters": {"color": 5, "width": 360, "height": 340, "content": "## Image array\n* Load from PC\n* Select one of the default images\n\n### Change this node to\n### get image URLs from your data source"}, "typeVersion": 1}, {"id": "08bb17fd-1440-4194-8c4f-e18222a68bf2", "name": "Sticky Note4", "type": "n8n-nodes-base.stickyNote", "position": [1080, -20], "parameters": {"color": 5, "width": 400, "height": 300, "content": "## HTML code of the editor\n* Konva.js\n* img-comparison-slider to compare edits vs original file\n* Additional css + js files for the editor logic"}, "typeVersion": 1}, {"id": "13a820d0-e83b-4d1e-81d1-738ef8ca4d47", "name": "Sticky Note5", "type": "n8n-nodes-base.stickyNote", "position": [580, 500], "parameters": {"color": 5, "width": 280, "height": 340, "content": "## Call FLUX-Fill Tool\nPass the following data:\n* original image\n* alpha mask from the editor\n* text prompt\n* additional settings"}, "typeVersion": 1}, {"id": "f4ab042c-d4da-4f1e-aa05-fdd2cca62d66", "name": "NO OP", "type": "n8n-nodes-base.noOp", "position": [420, 680], "parameters": {}, "typeVersion": 1}], "active": true, "pinData": {"Webhook": []}, "settings": {"callerPolicy": "workflowsFromSameOwner", "executionOrder": "v1", "executionTimeout": 120, "saveDataSuccessExecution": "all"}, "versionId": "6d4112be-fb6f-4702-ac5f-2c49ff0117d4", "connections": {"Merge": {"main": [[{"node": "Editor page", "type": "main", "index": 0}]]}, "NO OP": {"main": [[{"node": "FLUX Fill", "type": "main", "index": 0}]]}, "Mockups": {"main": [[{"node": "Merge", "type": "main", "index": 1}]]}, "Webhook": {"main": [[{"node": "Merge", "type": "main", "index": 0}, {"node": "Mockups", "type": "main", "index": 0}], [{"node": "NO OP", "type": "main", "index": 0}]]}, "FLUX Fill": {"main": [[{"node": "Wait 3 sec", "type": "main", "index": 0}]]}, "Is Ready?": {"main": [[{"node": "Get Fill Image", "type": "main", "index": 0}], [{"node": "Wait 3 sec", "type": "main", "index": 0}]]}, "Wait 3 sec": {"main": [[{"node": "Check FLUX status", "type": "main", "index": 0}]]}, "Editor page": {"main": [[{"node": "Respond to Webhook", "type": "main", "index": 0}]]}, "Get Fill Image": {"main": [[{"node": "Show the image to user", "type": "main", "index": 0}]]}, "Check FLUX status": {"main": [[{"node": "Is Ready?", "type": "main", "index": 0}]]}}}

How to Import This Workflow

  1. 1Copy the workflow JSON above using the Copy Workflow JSON button.
  2. 2Open your n8n instance and go to Workflows.
  3. 3Click Import from JSON and paste the copied workflow.

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