as changed

Review config changes,
without the noise.
Paste your template as A, your environment config as B. See only what actually changed.
No sign-up. No server. Runs entirely in your browser.
Key order aligned automatically
Reordering noise removed before comparison
Review the change, not the churn.
as changed
differences
Three formats. One format-aware diff.
Land on the comparer that matches your file.
Template / Target / diff
The only diff tool that treats one file as the source of truth.
Most tools treat both sides equally. DiffViewr treats Template A as the reference, so your target config is aligned to it before comparison.
Template-aligned comparison
Reorder Target B against Template A first, then review the differences that still matter.
Visual compare preview
Changed, missing, and extra values stay readable in a fast side-by-side pass.
Format detection
Paste config and get validation feedback before comparing.
Export clean, reordered config
Generate a clean result that is easier to review, commit, and share.
Common workflows
For the 10 minutes before every deployment.
No paste limits / No watermarks / No signup
Open Tool