What it does
Put your resume side-by-side with any job description and see a visual diff of what matches, what's missing, and what needs to change. Like a code diff for your career — green highlights show matches, red shows gaps, and each gap comes with a specific suggestion for what to add.
Why it matters
You think your resume matches the job description, but the ATS sees gaps you don't. The diff tool shows you the exact disconnect between what you wrote and what the employer is looking for.
See it in action

How to use it
Paste your resume
Add your current resume in the left panel.
Add the job description
Paste the target JD in the right panel.
View the diff
Green = matches. Red = gaps. Yellow = partial matches.
Read fix suggestions
Each gap includes a specific addition or rewrite suggestion.
Apply and rescore
Make the changes and run it through the ATS Scorer to verify improvement.
What you walk away with
A visual side-by-side comparison showing matches, gaps, and specific fix suggestions.
Pro tips
- •Run the diff before every application — it takes 30 seconds and can mean the difference between rejection and interview.
- •Focus on the red items first — those are the dealbreakers the ATS will flag.
- •Pair with Resume Builder to quickly apply the suggested fixes.