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Automatically prune n8n execution history

DangerDanger
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2/3/2026
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Automated Execution Pruning

This workflow is designed to help you manage and optimize your n8n instance by automatically pruning old workflow executions, ensuring a cleaner environment and improved performance. You can customize the retention period to suit your needs.

Key Features:

  1. Configurable Retention Period:
    The workflow is preconfigured to delete workflow executions older than 10 days. You can easily adjust this duration by modifying the condition in the If node.

  2. Daily Automation:
    Using the Schedule Trigger, the workflow runs daily at the specified time (default: 4:44 AM), retrieving all workflow executions and identifying those that are older than the defined retention period.

  3. On-Demand Testing:
    The Manual Trigger allows you to test the workflow at any time, ensuring everything is working as expected.

  4. Decision Making:
    The If node evaluates each execution based on its start date and determines whether it should be deleted or retained.

  5. Execution Pruning:

    • Delete Action: Executions meeting the criteria are removed via the Delete Execution node.
    • No-Operation: Executions that don't meet the criteria remain untouched.

Workflow Nodes:

  1. Manual Trigger: Enables on-demand testing of the workflow.
  2. Schedule Trigger: Runs the workflow daily at the configured time.
  3. n8n List Execution: Fetches all executions in your n8n instance.
  4. If Node: Compares the execution's start date with the configured retention period.
  5. Delete Execution: Deletes executions older than the specified retention period.
  6. No Operation: Serves as a placeholder for executions that don't meet the pruning criteria.

How to Customize:

  • Retention Period:
    Update the If node's condition to modify the retention period. For instance, change 10 * 24 * 60 * 60 * 1000 to the desired number of days in milliseconds.

  • Schedule:
    Adjust the timing of the Schedule Trigger to match your preferred automation schedule.

This workflow ensures your instance remains efficient by keeping only the relevant execution logs. Use it to maintain a streamlined and clutter-free environment effortlessly.

Automatically Prune n8n Execution History

This n8n workflow provides a robust and configurable solution for automatically managing and pruning your n8n workflow execution history. By periodically cleaning up old execution data, it helps maintain optimal performance and reduces storage consumption on your n8n instance.

What it does

This workflow is designed to be highly flexible, allowing you to choose between manual or scheduled execution.

  1. Triggers Manually or on Schedule: The workflow can be initiated either by a manual trigger (e.g., for immediate cleanup or testing) or automatically on a predefined schedule (e.g., daily, weekly).
  2. Conditional Execution: It includes an "If" node, which acts as a router. This node is typically configured to check a condition (e.g., a specific environment variable or a flag) to determine whether the pruning operation should proceed.
  3. Prunes n8n Execution Data: If the condition in the "If" node evaluates to true, the workflow proceeds to the "n8n" node. This node is configured to perform the actual pruning of old workflow executions, based on parameters like the age of executions to keep.
  4. No Operation (Optional Path): If the condition in the "If" node evaluates to false, the workflow takes an alternative path through a "No Operation" node, effectively doing nothing. This allows for safe deployment and conditional activation of the pruning logic.

Prerequisites/Requirements

  • An active n8n instance.
  • n8n API access (the "n8n" node will likely require credentials to interact with your instance's API for pruning).

Setup/Usage

  1. Import the Workflow:
    • In your n8n instance, go to "Workflows".
    • Click "New" -> "Import from JSON".
    • Paste the provided JSON content and click "Import".
  2. Configure Credentials:
    • Locate the "n8n" node (ID: 826).
    • Configure the n8n API credentials if they are not already set up. This typically involves creating an "n8n API" credential type with your n8n instance URL and an API key.
  3. Configure the "If" Node (ID: 20):
    • Edit the "If" node to define the condition under which the pruning should occur. For example, you might check an environment variable like N8N_PRUNE_HISTORY_ENABLED set to true.
    • The "True" branch should connect to the "n8n" node (ID: 826).
    • The "False" branch should connect to the "No Operation, do nothing" node (ID: 26).
  4. Configure the "n8n" Node (ID: 826):
    • Set the "Resource" to "Execution".
    • Set the "Operation" to "Prune".
    • Configure the "Keep Executions For" option to specify how long you want to retain execution history (e.g., "7 days", "30 days").
  5. Choose a Trigger:
    • Manual Trigger (ID: 838): If you want to run the cleanup manually, ensure this node is enabled.
    • Schedule Trigger (ID: 839): To automate the cleanup, enable this node and configure its schedule (e.g., daily at 2 AM, weekly on Sunday). Disable the Manual Trigger if you only want scheduled runs.
  6. Activate the Workflow: Save and activate the workflow.

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