JSON Tools
Format, validate, repair, convert. Every common JSON workflow, running entirely in your browser — your data never leaves your device.
Built for Developers Who Live in JSON
Each tool is its own focused page — clean URLs, fast loads, no login walls.
JSON Formatter
Format, validate, repair JSON
JSON to TypeScript
Generate TS interfaces from JSON
JSON to CSV
Convert JSON ↔ CSV both ways
JSON to YAML
Convert JSON ↔ YAML both ways
JSON Diff
Compare two JSONs structurally
JSON Generator
Generate dummy JSON from templates
JSON Schema
Generate + validate JSON Schema
JSON Path
Query JSON with JSONPath
JSON Flatten
Flatten / unflatten nested JSON
Duplicate Keys
Find duplicate JSON keys
JSON Escape
Escape / unescape JSON strings
JSON Stats
Inspect depth, keys, types
JSON Viewer
Interactive collapsible tree
JSON to XML
Convert JSON ↔ XML both ways
JSON to TOML
Convert JSON ↔ TOML both ways
JSON to Go
Generate Go structs from JSON
JSON to Python
Generate Python @dataclass
JSON to Rust
Generate Rust serde structs
JSON to Java
Generate Java POJOs
JSON to C#
Generate C# classes
JSON to Markdown
JSON array to Markdown table
JSON to Kotlin
Generate Kotlin data classes
JSON to Swift
Generate Swift Codable structs
JSON to SQL
CREATE TABLE + INSERT statements
JSON to HTML
JSON array to HTML table
JSON Merge Patch
Apply RFC 7396 patches
JSON to Excel
Download as .xlsx file
JSON to Protobuf
Generate proto3 schema
JSON to GraphQL
Generate GraphQL SDL
JSON5 / JSONC
Parse JSON with comments
JSON Sort
Sort keys + arrays deeply
Need More Than JSON?
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