DevKit Suite
Living Types
Paste real API response samples, get TypeScript types and Zod validators inferred across all of them — then save a snapshot to catch contract drift the moment a real API response changes shape. Entirely in your browser, nothing sent to a server.
Try Living Types →Tool Suite
16 more everyday dev utilities — JWT, regex, curl-to-code, and more. Free, no account needed.
JSON Formatter
Cmd/Ctrl+Enter saves this input to history.
YAML ↔ JSON Converter
- Base64 Encode / Decode
- JWT Decoder
- Timestamp / Epoch Converter
- UUID & Hash Generator
- JSON Diff Viewer
- Cron Expression Explainer
- JWT Encoder
- Regex Tester
- Case Converter
- URL Encoder / Decoder
- Color Picker
- SQL Formatter
- GraphQL Query Formatter
- OpenAPI / Swagger Validator
- Protobuf Text ↔ JSON
- curl → fetch/axios