Free tools

Small tools that solve one problem well.

Free utilities from Kodex, published for anyone to use. Every tool processes what you type locally on your device; the tools themselves send nothing anywhere, and there is no sign-up.

We add to this collection over time. Each tool does one job, stays fast, and works without an account.

JSON Formatter & ValidatorPaste JSON and get it formatted, validated, or minified instantly, with exact error locations when it doesn't parse.

Built by Kodex

Kodex designs and builds mobile apps, full-stack products, and Claude-powered systems for clients. If you need a tool like this built into your own product, or a product built around one, we can scope it with you.

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