Test a regular expression against a string and see all matches.
Developer tool
Text Diff Checker
Compare two blocks of text and see what changed, line by line.
Included in the Business plan (from $6/month), in Dual (Personal and Business together) and in the 7-day free trial.
No payment card is needed to start the trial.
Why use Text Diff Checker online
Nothing to install
Text Diff Checker runs in a modern browser on desktop, tablet and phone. Open it in a tab and start; there is nothing to download or update.
Your work stays yours
Anything you save is stored in your account, can be exported, and is not sold.
Part of the developer toolkit
Sits alongside JSON, regex, JWT, cron and the other developer tools in the same account.
Works well with
Tools that connect to Text Diff Checker in the same account.
Bulk find and replace text, with optional regex support.
Format messy JavaScript, CSS, JSON, or HTML into clean, readable code - pick your indent...
Frequently asked questions
Is Text Diff Checker free to use?
Text Diff Checker is included in the Business plan from $6/month, and in the Dual plan (Personal and Business together). Every new account starts with a 7-day free trial of every tool, and no payment card is needed to start.
Do I need to install anything to use Text Diff Checker?
No. Text Diff Checker runs in a modern browser on Windows, Mac, Linux, iPhone and Android. There is nothing to download, update or uninstall.
Is my data private when I use Text Diff Checker?
Anything you save is stored in your account, can be exported, and is not sold. You can download everything at any time with Export My Data.
Does Text Diff Checker work on my phone?
Yes. Text Diff Checker runs in a modern browser on desktop, tablet and phone.
What else is included with Text Diff Checker?
Xerion has 199 browser-based tools across 9 categories: Business, Creative, Developer, Everyday, Finance, Fun & Games, PDF, Productivity and Security. The 7-day free trial includes every one of them; after that, the plan you pick decides which are included.
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Percent-encode or decode text for safe use in URLs.
Turn any title or phrase into a clean, URL-friendly slug.
Convert numbers between binary, octal, decimal, hex, and any base 2-36.
Try Text Diff Checker free for 7 days
Every new account starts with a 7-day free trial of every tool. No payment card is needed to start, and your saved work is kept whatever you decide afterwards.
Included in the Business plan (from $6/month), in Dual (Personal and Business together) and in the 7-day free trial. Already have an account? Log in.