ParseLab

Edit, convert, search and compare JSON, YAML, TOML, XML, PLIST, INI, ENV and CSV. Syntax highlighting, tree view, diff, analytics and more. Private and fully on-device.

ParseLab is the professional data format editor for iPhone and iPad. View, edit, validate, convert and compare your config and data files with a fast, native app built for iOS 26 and the Liquid Glass design.

SUPPORTS 8 FORMATS JSON, YAML, TOML, XML, PLIST, INI, ENV and CSV. Open the file, and ParseLab detects the format automatically.

FREE FEATURES

• View and edit all 8 file formats
• Beautiful syntax highlighting
• Tree view navigation for hierarchical data
• Live CSV spreadsheet table view
• Inline validation that flags duplicate keys and trailing commas as you type
• Basic schema validation
• File info and per-format statistics
• Light and dark themes
• Built-in sample files to get started
• Works completely offline
• No ads, no tracking, no accounts

PARSELAB PRO (one-time purchase, no subscription)

• Format conversion suite: convert between JSON, YAML, TOML, XML and CSV in a tap
• Batch conversion and reusable conversion presets
• Advanced search and query tools, including JSONPath and XPath
• Diff and Compare: spot every change between two files
• Data analytics and visual data explorer
• AI-powered features: natural language queries and smart suggestions
• Premium syntax themes
• Schema validation for JSON
• Export with custom formatting
• Unlimited file size and unlimited recent files history

PERFECT FOR

• Developers working with configuration files
• API testing and debugging
• Data analysis and exploration
• Editing config files on the go
• Learning and exploring file formats

WHY PARSELAB

• Native app built for performance on iOS 26
• Privacy first: all processing happens on your device
• One-time Pro purchase, no subscriptions, no recurring fees
• Available in English, Spanish, Hindi, Simplified Chinese and Traditional Chinese
• Regular updates and responsive developer support

Download ParseLab today. Start with the generous free tier, and upgrade to Pro when you need conversion, advanced search, diff and analytics.