Filter & Clean Domains in Seconds

Upload your CSV or XLSX file with domains, filter by extension (.com, .in, .org, etc.), remove duplicates, and download clean results. All processing happens in your browser - your data never leaves your device.

Upload Your Domain File

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Click to upload or drag & drop your file here

Supports CSV and XLSX files (up to 2M+ rows)

🔒 100% Secure: All processing happens locally in your browser. Your files are never uploaded to any server.

What is a Domain Filtering Tool?

A domain filtering tool is a specialized utility designed to help webmasters, SEO professionals, digital marketers, and data analysts process large lists of domain names efficiently. Whether you're managing an extensive backlink profile, cleaning up a domain list for outreach campaigns, or analyzing competitor domains, this tool streamlines the entire process.

Our Domain Filtering Tool stands out because it processes everything locally in your browser. Unlike other tools that require you to upload sensitive domain data to external servers, our solution ensures complete privacy and security. Your data never leaves your device, making it the perfect choice for handling confidential client information or proprietary domain lists.

Key Features That Make This Tool Essential

1. Support for Large Files

Many domain filtering tools struggle with large datasets, but ours can handle files containing over 2 million rows. Whether you're processing a small list of 100 domains or a massive dataset extracted from enterprise-level SEO tools, our tool manages the load efficiently without browser crashes or performance issues.

2. Automatic Domain Cleaning

Raw domain data often comes cluttered with prefixes like "http://", "https://", and "www.". Our tool automatically strips these prefixes and extracts the root domain. For example, "https://www.blog.example.com" is automatically cleaned to "example.com". This normalization ensures consistency across your entire dataset.

3. Duplicate Removal

Duplicate domains can skew your analysis and waste resources during outreach campaigns. Our tool automatically identifies and removes duplicate entries, ensuring you work with a clean, unique list of domains. This feature alone can save hours of manual work when dealing with large datasets.

4. Extension-Based Filtering

Need only .com domains for your campaign? Or perhaps you're targeting .in domains for a regional SEO project? Our tool automatically detects all domain extensions in your file and creates filter buttons for each. With a single click, you can isolate domains by extension, making it easy to segment your list for different purposes.

5. Real-Time Search

After filtering by extension, you can further refine your results using the built-in search function. Type any keyword, and the tool instantly displays matching domains. This is particularly useful when looking for specific brands, keywords, or domain patterns within your filtered results.

6. Multiple Export Options

Once you've filtered and refined your domain list, export it in your preferred format. We support TXT files for simple lists, CSV files for spreadsheet applications, and a one-click copy function to paste domains directly into other tools or documents.

Common Use Cases

SEO and Link Building

SEO professionals regularly work with large lists of potential link-building targets. Our tool helps you quickly filter domains by TLD, remove duplicates, and export clean lists for outreach. For example, if you're running a local SEO campaign targeting Indian websites, you can instantly filter for .in domains and export them for your outreach team.

Domain Research and Analysis

Domain investors and researchers often analyze large datasets to identify valuable domains. Our tool makes it easy to segment domains by extension, allowing you to quickly identify premium TLDs like .com or explore opportunities in country-specific extensions like .co.uk or .de.

Data Cleanup for CRM Systems

Marketing teams importing domain data into CRM systems need clean, standardized data. Our tool's automatic cleaning and duplicate removal features ensure your CRM data remains accurate and actionable, preventing issues like multiple contact records for the same domain.

Competitive Analysis

When analyzing competitor domains, you often need to segment by geography or industry. By filtering domains by extension, you can quickly identify regional competitors (.co.uk for UK, .ca for Canada) or specific industry patterns.

How to Use the Domain Filtering Tool

  1. Upload Your File: Click the upload area or drag and drop your CSV or XLSX file containing domain names. The tool accepts files of any size.
  2. Automatic Processing: The tool immediately begins processing your file. You'll see a progress indicator showing the processing status. During this phase, the tool cleans domains, removes duplicates, and identifies all unique extensions.
  3. Filter by Extension: Once processing completes, you'll see filter buttons for each domain extension found in your file. Click any button to instantly view only domains with that extension.
  4. Search Within Results: Use the search box to find specific domains within your filtered results. The search works in real-time, updating results as you type.
  5. Export Your Results: Choose your preferred export format - TXT for simple lists, CSV for spreadsheets, or use the Copy button to paste domains elsewhere.

Privacy and Security

In today's digital landscape, data privacy is paramount. Our tool is built with privacy as a core principle. All file processing happens entirely within your web browser using JavaScript. No data is transmitted to our servers or any third-party services. When you close your browser, all processed data is immediately cleared from memory.

This client-side architecture makes our tool ideal for agencies handling client data, enterprises with strict data security policies, and anyone who values privacy. You can use this tool confidently, knowing your domain lists remain completely private.

Technical Advantages

Our tool is built using pure HTML, CSS, and vanilla JavaScript with no external dependencies. This architecture provides several advantages:

  • Fast Loading: No heavy frameworks mean the tool loads almost instantly, even on slower connections.
  • Reliability: No external API dependencies means the tool works 100% of the time, without service outages or rate limits.
  • Compatibility: Works on all modern browsers without requiring plugins or extensions.
  • Offline Capability: Once loaded, the tool can work offline, making it useful in restricted network environments.

Best Practices for Domain Management

To get the most value from this tool, consider these best practices:

  • Always clean and deduplicate your domain lists before importing them into other tools or systems.
  • Segment domains by extension before starting outreach campaigns to target specific geographic regions or industries.
  • Export filtered lists in CSV format when you need to add additional data columns in spreadsheet applications.
  • Use the search function to quickly identify high-value domains within large datasets.
  • Regularly process your domain lists to maintain data quality and accuracy.

Why Choose Our Tool?

While many domain tools exist, ours offers a unique combination of power, privacy, and simplicity. It's completely free, requires no registration, handles massive files, and processes everything locally for maximum privacy. Whether you're an SEO professional, domain investor, digital marketer, or data analyst, this tool provides the functionality you need without the complexity or privacy concerns of traditional server-based solutions.

Start using the Domain Filtering Tool today and experience the difference that client-side processing makes in your domain management workflow.