Developer Tools

Overview

Developers use dozens of small utilities throughout the day, from formatting JSON to testing API endpoints, decoding JWT tokens, running regex tests, and looking up DNS records. The developer tools category brings these utilities together so you can stay in flow instead of searching for a different tool for each task. Key tools include a JSON formatter and validator, an API tester for sending HTTP requests, a localhost tunnel for exposing local servers, DNS and IP lookup tools, code formatters, a JWT decoder, a regex tester, and a cURL-to-code converter.

Common use cases

• Formatting and validating JSON API responses
• Testing REST API endpoints and inspecting responses
• Exposing a local server to the internet for webhook testing
• Looking up DNS records and checking IP information
• Decoding JWT tokens to inspect claims and expiration
• Testing regular expressions against sample text
• Converting cURL commands to code in various languages

Featured tools

How to choose the right tool

For JSON work, choose a tool that combines formatting, validation, diff, and conversion in one interface. For API testing, look for a tool that supports all HTTP methods, custom headers, and request bodies. For localhost tunneling, prioritize a tool with authentication and clear usage limits. For one-off tasks like JWT decoding or regex testing, a lightweight browser-based tool is usually sufficient.

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