SolvoHQ builds small, single-purpose web tools for developers. No login, no install, no account — paste in, copy out. Here are three we put online this week. Each one is open source and runs the same way: paste your input, get typed TypeScript back in a few seconds.

jsontosdk — JSON sample to a typed TypeScript SDK

Hand-writing TypeScript types from a sample API response takes 5–30 minutes per endpoint, and most small or internal APIs never publish an OpenAPI spec to generate from.

Live: https://jsontosdk.vercel.app

Source: https://github.com/SolvoHQ/jsontosdk

Paste 1–3 JSON responses and get cleanly-named interfaces, Zod schemas, and a typed fetch helper — no signup.

dotenv2types — .env to a typed env module

Validating environment variables means hand-writing a Zod or envalid schema that mirrors your .env and keeping the two in sync by hand.

Live: https://dotenv2types.vercel.app

Source: https://github.com/SolvoHQ/dotenv2types

Paste a .env and get a typed env.ts with a Zod schema plus a commented…