Developer Tools
Use developer tools for JSON formatting and validation, color conversion, CSS unit conversion, and Lorem Ipsum generation. Category guide: css unit converter, json to typescript, regex tester can be compared in the same workflow before opening a specific tool.
11 tools
JSON Formatter
JSON Formatter: Format, validate, beautify, and minify JSON with real-time syntax checks, line-and-column error hints, key sorting, and custom indentation for API payloads, config files, logs, and debugging workflows.
JSON to TypeScript
JSON to TypeScript: Convert JSON samples into TypeScript interfaces and type aliases. Automatically merges object-array fields, infers optional fields and null unions, and generates suitable type declarations for empty arrays and empty objects. Useful for API response modeling, frontend type bootstrapping, and data structure organization.
JSON ↔ YAML Converter
JSON YAML converter with side-by-side editing, instant bidirectional sync, indent control, key sorting, and multi-document YAML splitting for Kubernetes, Helm, CI configs, and API debugging.
JSON ↔ CSV Converter
JSON CSV converter for CSV/TSV and JSON with delimiter auto-detection, header row mapping, field trimming, and empty line skipping for data import/export, spreadsheet processing, and API payload preparation.
JWT Decoder
JWT Decoder: Parse JWT tokens to view Header and Payload content, visually check expiration and issuance times.
Regex Tester
Regex Tester: Test regular expressions with real-time matching, flag controls, capture groups, named groups, and instant replacement preview. Includes performance risk detection and timeout protection — ideal for pattern validation, text extraction, and batch replacement
Hash Checksum
Hash Checksum: Generate SHA-256/SHA-512/SHA-1 hashes for text or files. Compare with expected checksums to quickly verify file integrity. No file size limit
CSS Unit Converter
CSS unit converter for px, em, rem, %, vw, vh, and pt with responsive breakpoint settings and context-aware calculations for frontend implementation and layout tuning.
Color Converter
Color converter for HEX, RGB, HSL, and CMYK with live preview, color picker, and synchronized values for design handoff, CSS styling, and palette checks.
Lorem Generator
Lorem Generator: Generates Lorem Ipsum placeholder text, supporting custom paragraph, word, or character counts. Provides a start sentence option, suitable for layout testing, prototype filling, and content placeholder
Cron Expression Parser
Cron Expression Parser: Parse cron expressions to visualize next N execution times. Supports standard 5/6/7-field formats, timezone switching, common presets, and human-readable descriptions. Ideal for debugging crontab, CI/CD pipelines, and scheduled tasks
Tool Categories