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JSON Tools

A complete suite of JSON tools for developers: format and pretty-print messy JSON, validate against RFC 8259 or a JSON Schema, convert between JSON, CSV, YAML and XML, generate TypeScript interfaces, Zod schemas and Go structs, repair broken JSON, run JSONPath queries, diff two documents, and more — all in the browser with no data leaving your machine.

23 tools

Popular

JSON Formatter
Pretty-print, validate and minify JSON with syntax highlighting.
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JSON to CSV
Convert arrays of objects into clean, downloadable CSV.
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JSON to TypeScript
Generate TypeScript interfaces from any JSON sample.
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JSON to Zod Schema
Generate Zod validation schemas from any JSON sample.
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JSON to Pydantic
Generate Pydantic v2 models from any JSON sample.
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JSON Repair
Fix broken, malformed or LLM-generated JSON automatically.
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All JSON Tools

JSON Validator
Validate JSON against RFC 8259 with precise error locations.
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JSON Minifier
Strip whitespace for the smallest possible JSON payload.
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CSV to JSON
Parse CSV into structured JSON arrays instantly.
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JSON to XML
Convert JSON objects to well-formed XML.
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JSON to YAML
Bidirectional JSON ↔ YAML conversion.
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YAML to JSON
Convert YAML configuration files to JSON.
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JSON to Go Struct
Generate idiomatic Go structs with JSON tags from any sample.
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JSON Schema Generator
Generate a JSON Schema from any JSON sample.
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JSON Diff
Compare two JSON documents and highlight differences.
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JSONPath Tester
Run JSONPath queries against any JSON document.
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JQ Playground
Run jq queries in the browser — no install needed.
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JSON Tree Viewer
Browse large JSON files as a collapsible tree.
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JSON to TOML
Convert JSON configuration to TOML format.
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JSON Escape / Unescape
Escape or unescape special characters in JSON strings.
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Sort JSON Keys
Alphabetise all object keys recursively.
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Flatten JSON
Flatten nested JSON to dot-notation key-value pairs.
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JSON to Table
Render a JSON array as a sortable HTML table.
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About JSON Tools

A complete suite of JSON tools for developers: format and pretty-print messy JSON, validate against RFC 8259 or a JSON Schema, convert between JSON, CSV, YAML and XML, generate TypeScript interfaces, Zod schemas and Go structs, repair broken JSON, run JSONPath queries, diff two documents, and more — all in the browser with no data leaving your machine. All json tools on TryDevTools run entirely in your browser — no data is sent to any server, and no account is required.