WASend

WhatsApp Number Filter Tool

What is this tool?

The WhatsApp Number Filter Tool helps you quickly clean, validate, and format phone number lists for WhatsApp campaigns. Paste your numbers, and this tool will remove duplicates, filter out invalid entries, and give you a ready-to-use list for your marketing or messaging needs.

Why use it?

  • Save time by automatically removing duplicate and invalid phone numbers.
  • Ensure your WhatsApp campaigns reach only valid, properly formatted numbers.
  • Perfect for businesses, marketers, and anyone managing large contact lists.

How to use:

  1. Paste your list of phone numbers (one per line, or separated by commas/semicolons).
  2. Click Process Numbers to filter and validate.
  3. Copy the clean list and use it in your WhatsApp campaigns or CRM.

Compare with WhatsApp Business API

Discover why our solution is the smarter choice for your business messaging needs.

Our Solution

  • No monthly fees
  • Pay only for messages sent
  • Quick setup process
  • Flexible pricing plans

WhatsApp Business API

  • Monthly subscription fees
  • Complex approval process
  • Long setup time
  • Rigid pricing structure
Calculate Your Savings

Frequently Asked Questions

Everything you need to know about WASend API and Bulk Messaging Platform.

What is WASend API?

WASend is a powerful WhatsApp API and bulk messaging tool that enables you to send and receive WhatsApp messages programmatically. It's designed for both developers who want to integrate WhatsApp into their applications and businesses who need to send bulk messages.

How do I integrate WASend API with my app?

You can integrate WASend API using simple HTTP requests or with our official SDKs. Check our documentation for step-by-step guides and code samples.

What features does WASend API support?

WASend API supports:

✅ Sending and receiving text messages
✅ Webhook support for real-time message delivery
✅ Simple authentication with API keys
✅ Real-time delivery status
✅ Bulk messaging capabilities
✅ Group contact management
✅ Multiple WhatsApp numbers
✅ Rich media support
✅ Personalized messages

How is WASend API priced?

WASend API offers transparent, affordable pricing with no per-message fees. You pay a flat monthly or yearly rate based on your usage tier. See our pricing page for details.

Is WASend API secure?

Yes. All data is encrypted in transit using HTTPS. We follow best practices for authentication and data privacy. You control your API keys and webhook endpoints.

Do you offer a free trial?

Yes! Every new account gets a 7-day free trial to test all features. No credit card required.

What kind of support is available?

We offer comprehensive API documentation and email support for all users. Our documentation includes detailed guides, code examples, and API references.

Who can use WASend API?

WASend API is perfect for developers and businesses who want to integrate WhatsApp messaging into their applications. It's ideal for notifications, alerts, and automated messaging.

Can I send bulk messages through the API?

Yes, our API supports bulk messaging through a simple endpoint. You can send messages to thousands of contacts at once using CSV imports or direct API calls. The API handles rate limiting and queuing automatically to ensure reliable delivery.

How does group contact management work?

Our API allows you to organize contacts into groups for targeted messaging. You can import contact lists via CSV and manage them through our API endpoints. This makes it easy to send messages to specific groups of contacts.

Can I use multiple WhatsApp numbers?

Yes, you can connect and manage multiple WhatsApp numbers through our API. This allows you to scale your messaging capabilities across different business lines or departments. Each number can be managed independently through the API.

What types of media can I send?

Our API supports sending various types of media including images, documents, and videos. You can attach files to your messages through simple API calls, and we support multiple file formats and sizes.

How do personalized messages work?

You can create dynamic templates with personalized fields in your messages. The API allows you to automatically insert contact details, custom variables, and dynamic content into your messages.

How fast is message delivery?

WASend API delivers messages in real-time using webhooks and optimized infrastructure for low latency.

What programming languages are supported?

We provide SDKs for popular languages including JavaScript, Python, PHP, Java, Go, Ruby, and more. You can also use our REST API with any programming language.

Still have questions? Contact our support team