About DevKit

DevKit is a collection of practical tools built to make everyday development tasks faster — the kind of formatting, debugging, and data-wrangling work that comes up constantly and doesn’t deserve its own tab full of ads and pop-ups.

It covers a handful of areas:

• API development — an API client, documentation generator, and mock API server.
• Debugging — JSON, JWTs, regex, diffs, and log analysis.
• Data transformation — encoding, hashing, and conversions between JSON, CSV, YAML, and XML.
• Visualization — database schema and system design diagramming.
• Code sharing — pastes with syntax highlighting and expiration.
• AI-assisted development — explaining errors and code, and generating git commands, SQL, and regex, when an AI provider is configured.

Most tools run entirely in your browser — nothing you type gets sent anywhere. A few tools genuinely need a server (proxying API requests, hosting a mock endpoint, storing a paste, calling an AI model), and DevKit tries to be upfront about which is which — see the Privacy Policy for the specifics.

The source is on GitHub.