TFT

Compare Two SVG Files Online

Spot the differences between two SVG files. Compare them visually side-by-side and see a detailed diff of their XML code to understand exactly what changed.

SVG Comparison & Diff Tool

Compare two SVG files and identify differences in elements and attributes

About SVG Comparison

This tool compares two SVG files by analyzing their element structure and attributes. It identifies added elements, removed elements, and modified attributes.

The comparison is based on element signatures (tag name and attributes). Visual differences that don't change the structure (like coordinate changes) are detected as attribute modifications.

How SVG Comparison and Diff Works

This tool compares two SVG files and highlights what changed between them. It's useful for tracking design iterations, debugging unexpected visual changes, or reviewing what a teammate modified.

The comparison works on two levels: visual diff (overlaying the rendered SVGs to show pixel differences) and code diff (comparing the SVG markup line by line). Visual diff catches changes that affect appearance; code diff shows structural modifications.

What gets compared:

  • Element structure - added, removed, or moved SVG elements
  • Attribute changes - modified colors, positions, sizes, transforms
  • Path data - changes to d-attributes (shape modifications)
  • Text content - modified labels, titles, descriptions
  • Style changes - fill colors, stroke widths, opacity values
  • Visual differences - rendered output comparison with highlight overlay

The visual diff uses blend modes to show differences: areas that match appear normal, changed areas highlight in color (often red/cyan for side-by-side comparison). Code diff uses standard diff formatting with green for additions, red for deletions.

When You'd Actually Use This

Reviewing design revisions

A designer updated an icon but you're not sure what changed. Compare v1 and v2 - the diff shows the stroke width increased from 1.5 to 2, and the corner radius changed. Quick verification without manual inspection.

Debugging broken SVG exports

An SVG that worked yesterday looks wrong today. Compare the working version with the broken one. Maybe a transform got corrupted or a path lost a coordinate during export.

Code review for SVG changes

A pull request modifies SVG files. Instead of squinting at path data in the diff, use this tool to see visual impact. Confirm the icon changed as intended before merging.

Tracking optimization results

Ran SVGO or similar optimizer? Compare before and after to ensure optimization didn't break anything. Sometimes aggressive optimization removes "redundant" data that was actually needed.

Detecting unauthorized modifications

Someone edited your SVG and you need to know what. Compare the original with the suspicious version. Changes to metadata, added scripts, or modified paths become obvious.

Merging conflicting SVG edits

Two designers edited the same SVG file independently. Compare both versions to see what each person changed, then manually merge the modifications without losing either person's work.

What to Know Before Using

Whitespace changes can clutter diffs.Reformatting or re-indenting SVG code creates massive diffs with no visual impact. Enable "ignore whitespace" if available, or use a code formatter on both files before comparing.

Path data diffs are hard to read.A single character change in path data (d="M10,10 L20,20") can significantly alter the shape. Code diffs show the character change; visual diffs show the actual impact. Use both views together.

ID changes create false positives.If element IDs changed (Layer_1 to Layer_2) but nothing else, the code diff shows changes but visual diff shows nothing different. Focus on visual diff for appearance changes.

Transform order matters.rotate(45) translate(10, 0) produces different results than translate(10, 0) rotate(45). The diff shows the attribute changed, but you need to understand transform math to know the visual impact.

Pro tip: For icon sets, compare the entire folder using a batch diff tool. See which icons changed across a design update, not just individual files.

Common Questions

Can this compare more than two SVGs?

This tool compares two files at a time. For multi-file comparison, use version control (git diff) or a dedicated diff tool like Beyond Compare. Compare sequentially: A vs B, then B vs C.

Does visual diff work for different-sized SVGs?

Visual diff typically aligns by center or top-left corner. If SVGs have different viewBox or dimensions, the overlay might not align perfectly. Normalize sizes first if precise alignment matters.

Can I export the diff report?

Some tools offer export options (PNG of visual diff, text file of code diff). If this tool doesn't, screenshot the visual diff and copy-paste the code diff into a document.

Why do identical-looking SVGs show differences?

Export settings, software versions, or even save timestamps can create metadata differences. Use "ignore metadata" or "ignore whitespace" options to focus on meaningful changes.

Can this detect color changes?

Yes, both visually and in code. Visual diff highlights color-changed areas. Code diff shows the exact hex/rgb values that changed (e.g., #FF0000 to #00FF00).

What about animated SVGs?

Code diff works fine for animated SVGs. Visual diff shows a static frame comparison. To compare animations, you'd need frame-by-frame analysis or a video diff tool - beyond this tool's scope.

Is there an API for automated comparison?

This is a web tool, not an API. For automated SVG comparison in CI/CD, look into libraries like pixelmatch (visual) or standard text diff libraries (code) integrated into your build pipeline.