Diffchecker ProThe most popular file comparison tool on the web — now ProWith Diffchecker Pro, you can spot differences between text, images, files, and folders — with ultimate precision.

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View pricingTrusted by the world's top companiesCompare text with total precisionInstantly compare any text files, whether it's code, legal documents, or your favorite sourdough recipes. Check differences by word or character and make real-time edits

Compare Word and PDF documentsUse our AI software to extract and compare content from two PDFs, or merge files to highlight graphic differences

Compare imagesSlide to compare images pixel by pixel or seamlessly fade and overlay two pictures for a clear result

Compare spreadsheetsScan through each cell like an X-ray or display files side by side for a detailed overview of your data

Quickly compare and mergeReview and combine modified sections of your documents for a smooth and precise export.

Explain comparisons with AILet AI do the heavy lifting and explain the most complex diffs to you in plain English.

Edit differences in real timeModify your diffs on the fly with our built-in text editor and compute the differences in real-time.

Your browser does not support the video tag.Do more with Diffchecker ProYour all-in-one comparison powerhouse, with over 30+ features for a faster, easier workflow.

Character-by-character comparisonWhen every detail matters, check your code, contracts or invoices down to each individual character

Syntax highlightingPick from more than 20+ languages, including Javascript, Markdown, Python, R, and C++

High-speed performance Compare a thousand lines of code or even the most complex PDFs in no time

Export in multiple formatsDownload files in the Diffchecker format or export them as a PDF in one click

No adsEliminate distractions so you can focus on what really matters — your work

Collaborate securelyMake your documents accessible to the public or share privately with end-to-end encryption.

Annotate and collect feedbackAdd and gather comments on each line and change of the document.

Frequently Asked QuestionsWill I receive an invoice for my purchase?Yes. After purchasing Diffchecker Desktop, your invoice will be available under the 'Subscription' panel in your Diffchecker user account. The receipt will include the last 4 digits of your credit card number, purchase date, transaction ID, your name, email, company name and address (if provided) and our business number.

Can I use Diffchecker Desktop on multiple devices?Yes! You can use your Diffchecker Desktop license on three devices simultaneously, however you must be the primary user of each device. This way, you can keep using Diffchecker Desktop even if you replace your PC or use different computers at home and at work.

You can also change computers and your license will automatically move to the new device.

How can I distribute Diffchecker Desktop licenses to my employees?If you have purchased multiple licenses, they can be assigned to employee Diffchecker accounts in the 'Subscription' panel of your Diffchecker user profile page. Each assignment will generate a link that your employee can use to redeem the license.

Do subscriptions auto-renew?Your subscription will automatically renew on a monthly or yearly basis, depending on the plan you have chosen. If you cancel your plan, it will not renew at the end of your subscription cycle. It will end once the period you have paid for is over.

How can I cancel my subscription?You can cancel your subscription in your account settings. You will be able to use Diffchecker Desktop until the period you have paid for is over.

How do I request a refund?To request a refund, please fill out our contact form within 30 days of your purchase. We'll send you a confirmation email as soon as your license has been cancelled. Refunds can take up to 7 days to appear in your account.

Does Diffchecker Desktop have an EULA?Yes. To access the Diffchecker Desktop End User License Agreement (EULA), please go to the Diffchecker Desktop EULA.

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