I kept finding myself with 6 different browser tabs open for the same repetitive conversions — paste JSON here, convert YAML there, decode some Base64 somewhere else.
So I built codeconvert.dev to have them all in one place.
What it does
- JSON → TypeScript — paste JSON, get TypeScript interfaces instantly
- JSON ↔ CSV — convert between formats
- YAML ↔ JSON
- XML ↔ JSON
- ENV ↔ JSON — .env files and JSON back and forth
- Base64 encode/decode
- URL encode/decode
- Epoch ↔ Date — timestamp conversions
- JSON Formatter — format and validate
Why I built it
The JSON→TypeScript one is the main reason. Every time I hit a new API endpoint I'd end up writing interfaces by hand or copy-pasting into some sketchy random site. Having it clean and fast in one place saves a surprising amount of friction.
Everything is free, no sign-up required.
Would genuinely love feedback — what converters are you reaching for that aren't here? What would make this actually useful for your workflow?
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