Diff Viewer & Text Comparator
Paste two text blocks, code files, or Kubernetes YAML manifests to instantly see which lines were added, removed, or left unchanged.
100% Client-Side Processing: Your code comparisons are calculated entirely inside your browser's local memory. Nothing is sent to any server.
What is a Diff Viewer?
A "diff" (short for difference) is a line-by-line comparison output that shows what changed between two versions of a text or file. Pioneered by the Unix diff command and used as the core engine behind Git, it surfaces which lines were added (+), removed (−), or left unchanged at a glance.
This tool uses the jsdiff library to compare two texts line by line and renders the result in either Side-by-Side or Unified view mode. No network connection required — all computation completes instantly in your browser.
Common Use Cases
- Kubernetes YAML configuration drift detection: Compare two versions of
values.yaml, aConfigMap, or aDeploymentmanifest to see exactly what changed between environments. - Code review verification: Visually validate a change set before opening a pull request and catch unintended edits early.
- CI/CD pipeline configuration: Find differences between
Jenkinsfile,.gitlab-ci.yml, or GitHub Actions workflows across stages or branches. - Terraform / Helm comparison: Spot changes in
terraform.tfvarsfiles or Helm chart values between production and staging clusters. - Text revision tracking: Compare drafts of technical documentation, API specs, or blog posts to identify what was rewritten or removed.