All developer tools

Validate and beautify JSON

Fix common JSON syntax mistakes

Compare documents by path

Explore nested values

Validate data against a schema

Infer a schema from a sample

Query JSON by path

Convert nested data to dot paths

Inspect JSON Lines files

Alphabetize object keys

Measure structure and bytes

Estimate syntax and LLM tokens

Generate browser Fetch code

Generate Axios requests

Generate Python client code

Generate net/http code

Check required OpenAPI fields

Classify contract changes

Inventory endpoints and schemas

Find quality issues

Generate component interfaces

Migrate API definitions

Decode, verify, and generate JWTs

Audit a JSON Web Key Set

Convert public keys

Inspect RSA and EC keys

Generate interfaces

Generate Go structs

Generate dataclasses

Generate nested classes

Generate typed models

Generate PostgreSQL tables

Convert structured data

Convert tabular data

Convert elements and attributes

Encode and decode text or files

Encode components and inspect queries

Format SQL locally

Check CORS, cache, and security

Parse and redact dotenv values

Test and replace patterns

Validate and preview schedules

Create UUID v1 and v4 values

Convert Unix time and dates