Developer workflow
Debug JSON
Format, validate, inspect paths, and compare API responses before reusing the data.
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Developer tools
Browser-based developer tools for API, JSON, YAML, and HTTP debugging
Use focused browser tools to format JSON, validate YAML, build requests, decode strings, inspect tokens, and generate schema or type artifacts while coding. Start with the task you have, then move to the related check when the payload needs another pass.
JSON, API, tokens, schema, and typesBrowser-based input reviewCopyable resultsRelated next steps
Start here
Choose the closest starting point
Workflow
Debug JSON
Format, validate, inspect paths, and compare API responses before reusing the data.
Open pathWorkflow
Build API requests
Prepare request URLs, headers, JSON bodies, and cURL commands for a test call.
Open pathWorkflow
Decode data and tokens
Inspect encoded text, URL components, JWT claims, and hashes before copying values.
Open pathWorkflow
Generate types and schemas
Turn stable JSON samples into TypeScript types, Go structs, or validation schemas.
Open pathWorkflow groups
Keep related tools in one path
Browse
Developer workflow
Build API requests
Prepare request URLs, headers, JSON bodies, and cURL commands for a test call.
Developer workflow
Decode data and tokens
Inspect encoded text, URL components, JWT claims, and hashes before copying values.
Developer workflow
Generate types and schemas
Turn stable JSON samples into TypeScript types, Go structs, or validation schemas.
Scenario blocks
Match the page to the job
JSON formatter, validator, diff, and path checks
Format, validate, inspect paths, diff, or transform a payload before reusing API response data.
Open pathAPI request builder, cURL, headers, and tokens
Check method, URL, headers, body, and token shape before copying a request into code or docs.
Open pathType generation and JSON schema work
Generate TypeScript types, Go structs, or JSON Schema after a sample is readable and valid.
Open pathTop tools
Common starting calculators
json tools
JSON Formatter
Format JSON and inspect local payload diagnostics
json toolsJSON Validator
Validate JSON syntax and structure
api httpJSON Request Validator
Validate request bodies and required payload keys
convertersJSON to TypeScript Converter
Generate TypeScript interfaces from JSON
generatorsJSON Schema Generator
Generate JSON Schema from sample JSON data
api httpcURL Generator
Build reproducible curl commands from request inputs
api httpAPI Request Builder
Assemble fetch-ready requests with headers and body checks
Related topics
Move to a neighboring path
Related workflow
JSON Tools
Format, validate, inspect, and compare JSON payloads
Open pathRelated workflow
API & HTTP
Request building, inspection, and protocol debugging
Open pathRelated workflow
Encoders & Decoders
Encode strings, decode tokens, and inspect escaped data
Open pathRelated workflow
Data Converters
Convert JSON, XML, YAML, CSV, timestamps, and number bases
Open pathCategory questions
Which developer tool should I open first?
Start with the format you already have. For example, format JSON before validating it, decode a token before checking its claims, or build a request before reviewing headers.
Do these tools upload my input?
Most developer tools run directly in the browser. Avoid pasting production secrets into any online tool unless you are certain the input is safe to inspect.
When should I use this page instead of a specific tool?
Use this page when you are choosing the right workflow first. Use a specific tool page when you already know the exact format, token, request, or payload task.
Which developer tool should I open next?
Use the next tool only when the same value needs another check, such as validation after formatting or type generation after a clean JSON sample.