Enter two URLs (for example your staging and live pages) and hit Compare.
How to use
01
Enter two URLs or paste text
Put the first address in Version A and the second in Version B, for example staging and live. Or switch to Paste text or files, then paste, open or drop a file into each box.
02
Press Compare and read the SEO table
Both pages are fetched by our server. The SEO table flags any difference in title, meta description, canonical, robots, headings, Open Graph, lang, hreflang, links and word count.
03
Review the line diff
Pick text or HTML, side by side or unified, word or character highlights, and any ignore options. Use Prev and Next to jump between changes, then copy or download the diff.
Why Compare Two Web Pages
- Compare staging and live, or any two URLs, and see every added, removed and changed line with a similarity score.
- An SEO table compares title, meta description, canonical, robots, headings, Open Graph, hreflang and more.
- Paste text or open files, highlight changes by word or by character, and ignore case, spaces or a pattern.
- Jump between changes, hide unchanged lines, and export the diff as a patch file or an HTML report.
Pre-launch checklist: comparing staging with the live site
Run the comparison on your most important templates, such as the home page, a category page, a product or article page and the contact page. The SEO table covers the first few checks, and the text diff covers the rest.
- Meta robots: staging often carries noindex. Make sure the live page does not.
- Canonical: it should point at the live domain, never at staging.
- Title and meta description: confirm the new copy made it across and nothing reverted to a default.
- H1: one clear H1 per page, and the same one you approved.
- Body copy: scan the text diff for lost paragraphs, placeholder text or old prices.
- Links and scripts: in HTML source view, look for staging URLs in links, images and analytics tags.
- After launch, run the same comparison between the live page and the old version to confirm the migration kept everything.
Other ways to use a page comparison
The same diff that checks a launch helps with plenty of everyday jobs. Pick Visible text for wording and HTML source for markup, tags and scripts.
- Content theft: compare your article with a page you suspect copied it and read the similarity score.
- CMS migration: compare old and new URLs for each template to catch lost paragraphs, alt text or schema.
- Competitor tracking: save a page's text today, paste it next to the live version in a month, and see what they changed.
- Contract and policy edits: open two versions of a terms page or document and switch to Character level for exact wording changes.
- Config and code files: open two .json, .yaml or .env files, hide unchanged lines and download a .diff for review.
Common questions
Can I compare two web pages like staging and production?
Yes. Put the staging URL in Version A and the live URL in Version B and press Compare. The staging site must be reachable from the internet, because our server fetches both pages. Password-protected staging sites cannot be fetched.
What does the SEO table show when I compare two URLs?
It puts the title, meta description, canonical, meta robots, first H1, H1 and H2 counts, og:title, og:description, HTML lang, meta viewport, hreflang links, word count, link count and images without alt side by side, and marks each row Same or Differs. It catches classic launch mistakes, such as a staging noindex or a canonical still pointing at the staging domain.
How do I compare web page versions when only the HTML changed?
Switch the view from Visible text to HTML source. The markup is split so each tag starts on its own line, which makes changed attributes, scripts and meta tags easy to spot.
Does the web page diff handle very long pages?
It compares up to 2,500 lines per side and tells you when a page was cut at that point. Very long single lines, such as minified HTML, are marked as changed as a whole instead of word by word, so the tab stays responsive.
What does the word-level highlight in the page diff show?
When a line exists in both versions but was edited, the words that differ get a darker highlight inside the line. Switch to Character level to see single-letter changes, such as a changed digit in a price or a typo fix.
Can I ignore case or whitespace when comparing two pages?
Yes. Ignore whitespace treats runs of spaces and tabs as one and trims each line, and Ignore case treats upper and lower case as equal. To skip things like dates, IDs or timestamps, type a regular expression into the ignore field. All options apply at once, with no need to fetch again.
Can I compare text I copied from another source?
Yes. Switch to Paste text or files and put each version in its own box, for example an old draft and the published copy. You can also open or drop a text, HTML, Markdown, JSON or code file into each box. The same options and highlighting apply.
Does comparing two URLs include content loaded by JavaScript?
No. The pages are fetched as raw HTML without running scripts, so text that a JavaScript app adds after loading will not appear. For those pages, copy the rendered text from your browser and use Paste text.
Why does the URL comparison fail for some pages?
The site may block automated requests, need a login, time out, or return a page larger than 5 MB. The error message names the problem. Pasting the page's text is the fallback.
Can I save or share the comparison result?
Yes. Copy diff puts a unified patch on the clipboard, Download .diff saves it as a file that code tools understand, and HTML report saves a coloured side-by-side page with the similarity score that anyone can open in a browser. Nothing is stored on our side.