remove duplicates online
remove duplicates online
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Clean repeated lines or CSV rows in one step. Keep the first match, sort results, and export a tidy file.
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Clean Duplicate Data FasterUse Thunderbit to scrape websites and extract structured data with AI, then organize and export it to Sheets, Airtable, or Notion. Fast, no-code, and easy to use.
Install fromChrome Web Store
Clean Duplicate Data Faster
Scrape data from websites, subpages, PDFs, docs, and images, then turn it into structured tables with AI. Thunderbit can summarize, categorize, and format fields so your data is ready to use.
Export cleaned results to Google Sheets, Airtable, or Notion, or download as CSV and JSON. Use browser scraping for logged in sites or cloud scraping for faster public pages.
How to Remove Duplicate Lines Using Thunderbit
STEP 1Download and InstallDownload and install the Thunderbit Chrome Extension from the Thunderbit Chrome Extension Download Page. Once installed, log in or create a free account to get started.
STEP 2Open ExtensionOpen the Thunderbit Chrome Extension, then go to the remove duplicates online tool. Paste your text or CSV data into the input box. Review the available settings, including whether to keep the first duplicate, how to sort the results, and which export format to use.
STEP 3Click the Remove duplicates ButtonClick the Remove duplicates button. Thunderbit will clean the text or CSV by removing exact duplicate lines or rows based on your selected settings. You can then view the cleaned result on the page, copy it to the clipboard, or download it in the chosen format for use in other tools.
Learn how to remove duplicate lines online
Remove Duplicate Lines
This tool cleans text or CSV data by removing exact duplicate lines or rows. Paste your content, choose whether to keep the first or last occurrence, and get a deduplicated result in one step. It is useful for anyone working with messy lists, repeated contacts, or repeated CSV rows, helping save time and reduce manual cleanup before analysis or export.
Sort Cleaned Results
After duplicates are removed, you can sort the output in ascending or descending order, or leave it in the original sequence. This makes it easier to organize lists before sharing, importing, or reviewing. The tool keeps the content exactly as provided aside from deduplication and optional sorting, which helps maintain data accuracy while improving readability and consistency.
Export Cleaned Data
Once the data is cleaned, you can export it as plain text or CSV for further use. You can also copy the result to your clipboard or download it as a file. This is useful for users who need a quick way to prepare data for spreadsheets, databases, or other workflows without reformatting everything manually.
Clean Lists and CSV Rows
This tool is ideal for marketers, sales teams, analysts, and anyone managing repeated entries in lists or tables. It works well for contact lists, product rows, and other structured text where duplicates create noise. By removing repeated data and preserving your chosen order, it helps produce cleaner inputs for reporting, importing, and everyday data handling.
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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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