When to ignore whitespace when comparing code
Ignoring whitespace removes noise from reformatted code, but in some languages it hides real changes. Here is how to choose.
1 min read
Compare PHP
untitled.php
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Original1 line
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Modified1 line
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NOTHING UPLOADED · RUNS LOCALLY · FREE TO USE
About PHP comparison
Compare PHP with confidence.
Useful for reviewing a controller change, a config update or a vendor patch before you apply it.
01
Ignore whitespace
Hide formatting-only changes from PSR-12 fixers.
02
Find the real edit
Use the change navigator to jump straight to each modified block.
03
Private by design
Your code stays in the browser and is never uploaded.
Features
Quiet tools, sharp results.
01
Aligned side by side
Two editors scroll together so the line you are reading always faces its counterpart.
02
Every change, coloured
Ember marks edits and removals. Ink marks additions. No other colours to learn.
03
Jump between differences
Step forward and back through each change with a count of how many remain.
04
Ignore the noise
Switch off whitespace and letter-case differences to focus on what really matters.
05
Changes, explained
A line-by-line list says what happened to each line, such as “Friday” became “Monday” or a number went from 3 to 4. Click any entry to jump straight to it.
How it works
Three steps. No account.
i
Paste
Drop the original on the left and the new version on the right.
ii
Compare
Differences are highlighted as you type, line by line.
iii
Decide
Review the summary, swap sides or clear the editors and go again.