Software development · Runs in your browser
Diff Checker
Compare two texts or configuration files and inspect added, removed and unchanged lines locally.
Files stay in this browser tab.
How to use it
Paste the original and revised text, then compare. The output retains line endings as represented in each input.
Worked example
Compare replicas: 2 with replicas: 3 and inspect the changed line.
What to check
This tool compares text. It does not automatically merge files or apply configuration changes.
Build a system for this use case
Configuration drift lab
Example OpenFactory build prompt
Build a useful configuration drift lab on Ubuntu 24.04 LTS amd64, unless the target installer or embedded board requires its explicitly selected OS.
Use two Linux nodes, a versioned baseline and a configuration comparison job. Include only the components this workload needs. Use synthetic sample data and placeholders for site-specific domains, authorized SSH public keys and external integration credentials. Create a non-root operator and keep administrative access private. Never put real credentials, patient records or customer data in the image.
Acceptance checks: introduce a controlled configuration change, detect the drift and verify a reviewed correction restores the baseline. Boot the actual artifact and repeat relevant health, persistence and access checks after reboot. Keep hardware-dependent checks pending until the specified equipment is attached.
Deliver the bootable image or reproducible deployment recipe, the software inventory and a test report that separates successful assembly from runtime verification. Ask for missing hardware, storage and access details before making irreversible deployment choices. Do not deploy into production or erase an existing disk without an explicit target.Your tool inputs and files are not included in the build prompt. Review the draft and press Send in OpenFactory.
Source
MDN Web DocsOpenFactory · 2026-10-29