Developer tools that just work.
Convert, format, validate and inspect your data instantly. Fast, private, and free.
Developer tools
Popular Developer Tools
Start with local JSON, YAML, schema, timestamp and token tools today. TheCodeWala is growing around focused browser-side utilities for practical development work.
Converters
Universal Converter
Paste data, detect JSON, choose an output format and copy the result. Runs locally in your browser.
JSON & Data
JSON to TypeScript
Convert JSON to TypeScript interfaces or type aliases instantly. Supports nested objects, arrays and optional fields. Runs locally in your browser.
JSON & Data
JSON to PHP
Convert JSON to PHP arrays, classes, Laravel DTOs or Eloquent model starters instantly. Runs locally in your browser.
Formatters
JSON Formatter
Format, minify, validate and inspect JSON with a lightweight tree view. Runs locally in your browser.
JSON & Data
JSON to Zod
Create Zod schemas and inferred TypeScript types from JSON examples. Runs locally in your browser.
JSON & Data
JSON Schema Generator
Generate Draft 2020-12 JSON Schema from example JSON with optional formats and examples. Runs locally in your browser.
Converters
YAML to JSON
Convert YAML documents to formatted or minified JSON locally in your browser.
Converters
JSON to YAML
Convert JSON documents to clean YAML locally in your browser.
JSON & Data
JSON Flatten
Flatten nested JSON objects and arrays into path-based keys. Runs locally in your browser.
JSON & Data
JSON Unflatten
Rebuild nested JSON from flattened path keys with prototype-pollution protections. Runs locally in your browser.
Time & Date
Unix Timestamp Converter
Convert Unix timestamps to local dates, UTC dates and ISO strings. Generate seconds and milliseconds from date input in your browser.
Security
JWT Decoder
Decode JWT headers and payloads locally in your browser. Inspect claims without submitting tokens to a server.
Built for privacy
Your data stays in your browser.
Many TheCodeWala tools process your data entirely in your browser. Your JSON, code, tokens and other inputs are not uploaded unless a tool explicitly requires server-side processing.
Built for real developer workflows.
TheCodeWala gives developers focused tools for working with JSON, APIs, PHP, Laravel and everyday development tasks.
Convert JSON to TypeScript, PHP, Zod, JSON Schema or YAML. Format and validate JSON, decode JWTs, flatten complex data and convert Unix timestamps — quickly, without signup and without unnecessary complexity.
Paste. Convert. Copy. Done.