Developer Tools

Regex Tester

Test regex patterns with live matching and capture groups

Cron Expression Parser

Explain cron expressions in plain English and preview the next 10 run times

UUID Generator

Generate v1/v4 UUIDs, validate UUIDs, bulk generation

URL Encoder/Decoder

Encode and decode URLs and query strings

Base64 Encoder/Decoder

Encode and decode Base64 and Base64URL

Duplicate Line Remover

Remove duplicate lines from text while preserving order

Webhook Sender

Free online webhook sender tool to test HTTP endpoints. Send POST, GET, PUT, PATCH, and DELETE requests with custom JSON payloads, headers, and timeout options.

Payload Generator

Generate realistic webhook payloads for Stripe, GitHub, and Shopify

Webhook Receiver

Create temporary URLs to capture and inspect incoming webhooks

HTML Entity Converter

Encode or decode HTML entities — escape special characters or convert entities back

URL Screenshot

Capture a screenshot of any website for sharing or presentations