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Doppelganger runs on your hardware while giving you the power of a visual builder with block-based actions, optional JavaScript, and a secure API.
Build automation tasks locally, step by step.
A block-based editor, multiple run modes, and exportable task definitions you can reuse.
Block-Based Builder
Create tasks by stacking action blocks inside a visual editor.
Modes: Scrape, Agent, Headful
Choose the right execution mode per task from the dashboard.
Action Blocks
Click, type, hover, wait, scroll, press, and run JavaScript.
JavaScript Blocks
Add custom extraction and page logic where you need it.
JSON Export
Copy task definitions from the editor for reuse.
Secure API Access
Trigger and manage tasks through a secure API.
Automation you can actually ship to production.
From monitoring pages to QA checks, every flow runs on your hardware and can be accessed via the secure API.
Explore all use casesPrice Monitoring
Track public pricing pages and collect the latest values.
Lead Enrichment
Collect public signals and structure them for your own records.
QA Regression
Run scripted QA flows across environments and compare outputs.
Security Testing
Simulate real flows in a controlled, local environment.
Choose the execution mode per task.
Scrape, Agent, and Headful modes are available from the task editor and the secure API.
Scrape
Fast extraction mode for straightforward data pulls.
Agent
Multi-step flows with block sequencing and variables.
Headful
Manual, interactive browser session with no automation blocks.
Secure API access to run and manage tasks.
Trigger tasks, monitor runs, and fetch results from a secure API alongside the dashboard.
Trigger Runs
Start tasks programmatically through the secure API.
Check Status
Read run progress and statuses without leaving your stack.
Fetch Results
Pull structured outputs directly from the API.
curl -X POST "http://localhost:11345/tasks/:id/api" \
-H "x-api-key: dpl_9d2f..." \
-d "{"target_url": "https://example.com"}"