Download DevT Pro
DevT Pro is a desktop program that collects over 120 utilities for software development work into one installation. It converts between JSON, CSV, YAML, XML and TOML, generates typed models from JSON and client code from cURL commands, and encodes or decodes Base64, URLs, JWTs and HTML entities. Hashing, AES encryption and RSA key generation are included. All operations run on the local machine without network access or an account, which keeps source code and credentials inside the device. The application is available for macOS and Windows.
The interface is organized around a command palette, multiple tabs and a code editor with syntax highlighting and folding. A keyboard shortcut opens the palette, and typing part of a tool name reaches it directly, so switching between conversion, validation and generation tasks does not require menus. Tabs keep several tools open at once, each preserving its own input and output. Validators and formatters check JSON, XML, YAML, CSS and SQL, while viewers render JSON trees, CSV tables, HTML, Markdown, SVG and images for inspection.
Sixteen tools are free to use. A one-time purchase unlocks the complete set of more than 120 tools, covering converters, generators, encoders, decoders, cryptography, validators, formatters, viewers, date utilities, general utilities and QR code tools. No subscription, renewal or in-app purchase is involved. The program supports macOS 13 and later on Apple Silicon and Intel, and Windows 10 and 11 on x86 and ARM through emulation. Version 8.0 is the current release.
Use Cases for DevT Pro
| Lossless transformation between JSON, YAML, XML, CSV formats | Format migration for configuration and API payloads |
| Generate typed models from JSON schemas | Convert cURL requests into runnable HTTP client code |
| Encode and decode Base64, URL, JWT, HTML entities | Inspect transport-encoded tokens and payload representations |
| SHA-256 hashing and AES-256 symmetric encryption | Local RSA key pair generation for dev environments |
| Validate and normalize JSON, XML, YAML documents | Beautify or minify CSS, SQL, and structured files |
| Render JSON as collapsible tree, CSV as table | Inline preview of HTML, Markdown, SVG, images |
| Unix timestamp and readable date conversion | Compute date intervals and multi-zone current time |
| UUID and ULID generation, regex testing, cron parsing | Line-by-line diff comparison and color conversion |
| Generate QR codes for text, Wi-Fi, vCard | Read QR codes from image files offline |
| Keyboard-driven searchable palette across all tools | Tabbed multi-tool workflow with preserved input state |