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Diff checker

Diff checker

Compare two text blocks and spot changes, additions, or deletions in a clear view. Save time reviewing revisions and document updates.

Text A
Text B

Want to scrape data in bulk? Try Thunderbit for free.

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Track Text Changes with EaseCompare two versions of text in a clean, readable view and see what changed at a glance. Great for reviewing edits, catching additions, and checking deletions with no code.
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Track Text Changes with Ease

Compare two text blocks and spot additions, deletions, and edits in a structured view. Thunderbit can also extract text from websites, PDFs, docs, and images, then help summarize, categorize, and format the results. Export your structured data to Google Sheets, Airtable, or Notion in just a few clicks. Use it to review revisions, organize content updates, and keep text comparisons easy to manage.

How to Compare Texts Using Thunderbit

step_01.png
STEP 1Download and InstallDownload and install the Thunderbit Chrome Extension from the Thunderbit Chrome Extension Download Page. After installation, sign in or create a free account so you can access the tool.
step_02.png
STEP 2Open ExtensionOpen the page where you want to compare text, then launch the Thunderbit Chrome Extension. Choose the Diff Checker tool and open the Compare Two Text Blocks tab. Paste or type your first block into Text A and your second block into Text B.
step03.png
STEP 3Click the Compare Texts ButtonClick the Compare Texts button. Thunderbit will analyze both text blocks and display the differences in a clear format, marking additions, deletions, and modifications. Review the result, then copy the comparison into your document or workflow as needed.

Learn how to compare two text blocks

Compare Two Text Blocks

Diff Checker lets you paste two pieces of text and compare them side by side or inline. It highlights what was added, removed, or changed so you can spot differences without reading every line again. This is useful for editors, writers, legal teams, and anyone reviewing drafts, revisions, or document updates. It saves time and makes text review much easier.
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Highlight Additions, Deletions, and Changes

The tool focuses on the exact differences between Text A and Text B, marking modifications in a clear format that is easy to scan. It works with plain text of any length, making it helpful for comparing notes, policies, contracts, emails, or content drafts. By showing only what changed, it reduces confusion and helps users review content with better accuracy.
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Review Text Revisions Faster

After comparison, the result helps you understand how a document evolved from one version to another. This is especially useful for teams tracking edits, checking proofreading updates, or verifying whether a message was changed before sending. The clear output makes it easier to confirm revisions, catch missing content, and keep communication consistent.
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Check Drafts, Documents, and Messages

Diff Checker is a practical tool for anyone who needs to compare text in daily work. Use it to review article drafts, compare policy updates, validate contract wording, or inspect message changes before publishing. It supports quick text review without manual line-by-line checking, helping users work more efficiently and reduce mistakes.
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What users say about Thunderbit

Taryn W.Growth Strategist@Thunderbit changed how I run competitor research. I click 'AI Suggest Fields,' and it builds a clean table across paginated results—no coding, no CSS. Huge time-saver when analyzing product data from long-tail marketplaces.
Miles T.Sales Development ConsultantI use Thunderbit to grab emails and phone numbers from directories. It extracts clean contact info in one click, and exporting to Sheets or Notion takes seconds. No extra setup, no coding—just usable data ready to work with.
Rhea C.E-commerce AnalystThunderbit helps me monitor SKU data across multiple pages. I scrape the listings, then use Subpage Scraping to pull full product specs, pricing, reviews, and stock. The AI organizes everything into columns I define.
Cassian B.Real Estate AdvisorThunderbit's Scheduled Scraper makes real estate tracking easier. I describe the interval in plain English, and it automatically pulls updated listings, prices, and links without touching the setup again. Simple and very practical.
Dorian B.Content & SEO SpecialistI use Thunderbit's Field AI Prompts to clean and tag scraped blog content. It extracts titles, authors, and even suggests categories. Works great across dynamic sites and subpages—perfect for building structured SEO datasets.
Lina K.Marketplace Operations LeadWe track SKUs from niche stores using Thunderbit. Cloud Scraping handles 50 pages at a time, and for login-required sites, we switch to browser mode. It’s fast, flexible, and doesn’t need ongoing maintenance or manual edits.
Jorge F.Inbound Sales ManagerThunderbit’s AI Autofill is a lifesaver. After scraping contact info, I use it to fill lead forms directly in my browser. I just select the tab, and it fills everything using the scraped row. No manual input needed.
Alina D.Freelance ResearcherI rely on Thunderbit for extracting data from PDFs, image-based sites, and infinite scroll pages. It handles messy formats with AI and delivers ready-to-export tables I can send to Google Sheets or Airtable in seconds.
Taryn W.Growth Strategist@Thunderbit changed how I run competitor research. I click 'AI Suggest Fields,' and it builds a clean table across paginated results—no coding, no CSS. Huge time-saver when analyzing product data from long-tail marketplaces.
Miles T.Sales Development ConsultantI use Thunderbit to grab emails and phone numbers from directories. It extracts clean contact info in one click, and exporting to Sheets or Notion takes seconds. No extra setup, no coding—just usable data ready to work with.
Rhea C.E-commerce AnalystThunderbit helps me monitor SKU data across multiple pages. I scrape the listings, then use Subpage Scraping to pull full product specs, pricing, reviews, and stock. The AI organizes everything into columns I define.
Cassian B.Real Estate AdvisorThunderbit's Scheduled Scraper makes real estate tracking easier. I describe the interval in plain English, and it automatically pulls updated listings, prices, and links without touching the setup again. Simple and very practical.
Dorian B.Content & SEO SpecialistI use Thunderbit's Field AI Prompts to clean and tag scraped blog content. It extracts titles, authors, and even suggests categories. Works great across dynamic sites and subpages—perfect for building structured SEO datasets.
Lina K.Marketplace Operations LeadWe track SKUs from niche stores using Thunderbit. Cloud Scraping handles 50 pages at a time, and for login-required sites, we switch to browser mode. It’s fast, flexible, and doesn’t need ongoing maintenance or manual edits.
Jorge F.Inbound Sales ManagerThunderbit’s AI Autofill is a lifesaver. After scraping contact info, I use it to fill lead forms directly in my browser. I just select the tab, and it fills everything using the scraped row. No manual input needed.
Alina D.Freelance ResearcherI rely on Thunderbit for extracting data from PDFs, image-based sites, and infinite scroll pages. It handles messy formats with AI and delivers ready-to-export tables I can send to Google Sheets or Airtable in seconds.

Frequently Asked Questions

Extract Data using AI
Easily transfer data to Google Sheets, Airtable, or Notion
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