ToolsText & Content

Private text & content tool

Side-by-Side Text Diff Viewer

Compare two text or code versions in a colorized side-by-side report with line and word-level matching.

Free to use Your source stays in this browser and is never uploaded to Lucaden by this tool.

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How it works

Complete the job in three clear steps

  1. Add original and revised text to the local workspace.
  2. Choose the relevant settings and create a sanitized visual difference report.
  3. Review the result carefully, then copy or download it before leaving the page.

Important

Check the result before relying on it

Review generated output before using it in production. Formatters and converters can validate structure, but they cannot understand every application-specific rule or guarantee that transformed content has the intended meaning.

Practical details

What this Lucaden tool does

Compare two text or code versions in a colorized side-by-side report with line and word-level matching.

A visual diff shows textual edits, not whether the revised meaning or program behavior is correct. Large inputs are capped to keep the browser responsive.

Lucaden supplies the interface and focused workflow while preserving upstream attribution and license notices.

Included capabilities

  • Side-by-side rendering
  • Line and word matching
  • Added and removed counts
  • Sanitized local HTML preview

Useful for

  • Review code changes
  • Compare configuration
  • Inspect contract revisions
  • Check generated text

Questions

About this tool

Does Lucaden upload my source?

No. The pinned open-source runtime executes in temporary browser memory, and this tool has no upload step.

What should I verify?

A visual diff shows textual edits, not whether the revised meaning or program behavior is correct. Large inputs are capped to keep the browser responsive.

Which open-source project powers this tool?

The implementation uses jsdiff (BSD-3-Clause runtime 9.0.0), diff2html (MIT runtime 3.4.56), DOMPurify (Apache-2.0 or MPL-2.0 runtime). Upstream projects retain their original names, copyrights, and licenses.

Open-source foundations

Built transparently

Lucaden documents its standards sources, architectural references, and permissive runtime dependencies while keeping this workspace consistent with the Lucaden interface.