n8n Integration - Automate File Conversion

n8n is a powerful, self-hosted workflow automation tool. This guide shows you how to use the HTTP Request node to call SuperConverter API endpoints.

Prerequisites

n8n instance (self-hosted or cloud)
SuperConverter API key from your dashboard

Step 1: Create API Credentials

In n8n, go to Credentials → Add Credential
Search for Header Auth
Configure the credential:
- Name: SuperConverter API
- Header Name: Authorization
- Header Value: Bearer YOUR_API_KEY
Click Save

Step 2: Add HTTP Request Node

Add an HTTP Request node to your workflow
Set Method to POST
Set URL to the endpoint (e.g., https://api.superconverter.io/v1/heic-to-jpg)
Under Authentication, select Predefined Credential Type
Select your SuperConverter API credential

Example: Convert HEIC to JPG

This example converts iPhone photos from HEIC to JPG format.

{
  "method": "POST",
  "url": "https://api.superconverter.io/v1/heic-to-jpg",
  "authentication": "predefinedCredentialType",
  "nodeCredentialType": "httpHeaderAuth",
  "sendBody": true,
  "bodyContentType": "multipart-form-data",
  "bodyParameters": {
    "parameters": [
      {
        "name": "file",
        "value": "={{ $binary.data }}"
      },
      {
        "name": "quality",
        "value": "90"
      }
    ]
  }
}

Binary Data: Use ={{ $binary.data }} to pass files from previous nodes (like Read Binary File or Google Drive).

Example: Compress Images

Reduce image file size while maintaining quality.

{
  "method": "POST",
  "url": "https://api.superconverter.io/v1/compress-image",
  "authentication": "predefinedCredentialType",
  "nodeCredentialType": "httpHeaderAuth",
  "sendBody": true,
  "bodyContentType": "multipart-form-data",
  "bodyParameters": {
    "parameters": [
      {
        "name": "file",
        "value": "={{ $binary.data }}"
      },
      {
        "name": "quality",
        "value": "80"
      }
    ]
  }
}

Example: AI Sentiment Analysis

Analyze customer feedback or social media messages.

{
  "method": "POST",
  "url": "https://api.superconverter.io/ai/sentiment",
  "authentication": "predefinedCredentialType",
  "nodeCredentialType": "httpHeaderAuth",
  "sendBody": true,
  "bodyContentType": "json",
  "bodyParameters": {
    "parameters": [
      {
        "name": "text",
        "value": "={{ $json.message }}"
      }
    ]
  }
}

Common Workflow Patterns

Google Drive Photo Converter

Trigger → Google Drive (Watch Folder) → HTTP Request (HEIC to JPG) → Google Drive (Upload)

Automatically convert iPhone photos uploaded to a specific folder.

Invoice Processing Pipeline

Email Trigger → HTTP Request (Invoice Scanner) → Airtable/Notion (Add Record) → Slack (Notify)

Extract data from invoice attachments and add to your database.

Social Media Image Optimizer

Webhook → HTTP Request (Compress Image) → HTTP Request (Remove Background) → S3 Upload

Optimize and process images for social media posts.

Available Endpoints

For a complete list of endpoints and parameters, see our OpenAPI specification

Endpoint	Description
`/v1/heic-to-jpg`	Convert HEIC to JPG
`/v1/compress-image`	Compress images
`/v1/resize-image`	Resize images
`/convert/mp4-to-gif`	Video to GIF
`/convert/compress-pdf`	Compress PDF files
`/ai/invoice-scan`	Extract invoice data
`/ai/sentiment`	Sentiment analysis

Need Help?

Check out the full API documentation or n8n HTTP Request documentation