Free Developer & Marketing Tools

Free WhatsApp Tools

No signup required. Generate links, QR codes, compare pricing, format phone numbers, and build message templates — all free.

WhatsApp Link Generator

Generate wa.me click-to-chat links with pre-filled messages. Get HTML button code and QR code instantly.

MarketingClick-to-ChatFree

WhatsApp QR Code Generator

Create scannable QR codes that open a WhatsApp chat with your number and pre-filled message. Download as PNG.

QR CodeOffline MarketingFree

WhatsApp API Pricing Calculator

Compare costs across WhatsApp API providers. Enter your monthly volume and see which option saves you the most.

PricingComparisonFree

Phone Number Formatter & Validator

Validate and format phone numbers to E.164 international standard. Detect country codes and WhatsApp compatibility.

DeveloperValidationFree

WhatsApp Message Template Builder

Build professional WhatsApp message templates for OTP, order confirmations, reminders, and more. Copy to clipboard.

TemplatesBusinessFree

SMS vs WhatsApp ROI Calculator

Calculate how much you can save by switching from SMS to WhatsApp. Compare delivery rates, open rates, and total costs.

ROICost SavingsFree

WhatsApp Text Formatter

Format message text with bold, italic, strikethrough, and monospace. Live preview shows exactly how it renders in a chat.

FormattingPreviewFree

JSON String Escaper

Escape newlines, quotes, and special characters so message text drops straight into an API request body.

DeveloperJSONFree

Webhook Payload Tester

Send a real sample event payload (message, message.ack, session.status) to your endpoint and see the response.

WebhooksDeveloperFree

Webhook Signature Verifier

Verify or generate the X-Hub-Signature-256 HMAC header WhatsApp webhooks are signed with. Runs entirely in your browser.

WebhooksSecurityDeveloper

Template Message Validator

Check a message template against Meta’s approval rules — character limits, variable numbering, category restrictions, and button limits — before you submit it.

TemplatesValidationDeveloper

Interactive Message Builder

Build reply-button and list messages visually and copy the ready-to-send Cloud API JSON — with limits validated as you type.

DeveloperInteractiveFree

WhatsApp 24-Hour Session Window Calculator

Enter when a customer last messaged you and instantly see if the free-form messaging window is open, or if you need an approved template message.

DeveloperComplianceFree

Need to Automate These Workflows?

These tools work great for one-off tasks. If you need to send messages, generate QR codes, or validate numbers programmatically, try our WhatsApp REST API.

Try Free on RapidAPI →