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JPKCom Developer Tools
Code & Text Tools
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Colors Fonts Geopattern Graphic Editor PDF Tools Periodensystem (PSE) Placeholder Service Trianglify UI
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Cron Job Helper Cryptor (AES-256) DNS, SSL, Redirect & URL Docker/Podman Composer Generator Hash Generator Info Tools IP Tools Mail Header Analyzer PKI Viewer QR Code SSH Proxy Time Converter UUID Generator
About
JPKCom Developer Tools

Free online tools for web developers and designers.

40 Tools available.

JSON Editor

Local storage Schema
  Drop a .json file here · Convert to YAML, XML or TOML: Convertor

Features

Tree View

  • Expand/collapse nodes
  • Drag and drop to reorder
  • Right-click context menu
  • Edit keys and values inline

Table View

  • Spreadsheet-like editing
  • Best for arrays of objects
  • Sort columns by clicking
  • Add/remove rows easily

Text View

  • Syntax highlighting, line numbers
  • Search and replace
  • Code folding
  • Transform with JSON Query

Exact & safe

  • Big numbers stay exact (e.g. 64-bit IDs)
  • Duplicate keys are reported, not dropped
  • JSON Schema validation
  • Everything runs in your browser