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Code Difference Viewer
Compare two snippets with side-by-side line highlighting.
Testing & Layout workspaceProcessing stays in your browser; regex runs in a time-limited worker.
Privacy-focused processingBrowser processing is used wherever practical.
25-minute cleanup policyServer files, when required, are removed after completion—not during active work.
Text, pasted data or supported local filesMaximum size and exact support are shown inside the tool.
About This Tool
Compare two short code snippets line by line with visible additions and removals.
How to Use
- Paste original and updated code.
- Review highlighted line-level differences.
- Copy or download a text diff report.
Tool Features
- Line-by-line difference highlighting
- Side-by-side display
- Bounded inputs
- Copy/download report
Common Use Cases
Complete repetitive formatting or calculation tasks.
Prepare clean output for websites and documents.
Inspect and verify your result before downloading.
Supported Input and Output
Text, pasted data or supported local files
- Check the tool workspace for its exact file-size limit.
- Browser format support can vary by device and browser version.
- Always review the generated result before important use.
Frequently Asked Questions
Does it compare individual characters?
No. Changes are highlighted at the line level.
Security and Privacy Information
Supported processing runs inside your browser whenever practical.
When server processing is required, cleanup starts only after the work completes.
Avoid uploading confidential data unless you understand the displayed processing notice.