A professional-grade suite for formatting, validating, anonymizing, and comparing JSON and data files. Secure, browser-based, and local-first.

• JSON Editor: Industrial-grade Monaco editor with schema validation, Safe-to-Share PII anonymization, and multi-view data visualization (Tree & Table).
• Base64 Tool: Secure encoding and decoding with integrated Monaco find/replace and regex support for complex payloads.
• JSON Compare: Deep comparison engine for JSON objects with semantic highlighting and difference navigation.
• File Compare: Text-based file comparison tool to spot differences in code, configs, or documentation.
• Folder Compare: Recursive directory comparison to identify missing files and structural changes across projects.
• CSV to JSON: Convert CSV files to JSON instantly in your browser with full control over mapping and data types.
• JSON to CSV: Flatten complex JSON objects and arrays into clean, spreadsheet-ready CSV files.
• Stream Formatter: Format, inspect, and filter newline-delimited JSON (NDJSON) or JSON Lines (.jsonl) datasets instantly and securely.
• SSE Parser: Debug and parse Server-Sent Events (SSE) streams, inspect raw event frames, and reconstruct AI stream text outputs.

Local-First Architecture: Unlike cloud tools, JSON Workbench keeps your data within the browser. This ensures maximum privacy and security, especially for sensitive customer data, internal configurations, or large files that might exceed upload limits. Experience instant, in-browser processing without any server round trips or remote storage risks.

Engineered for Reality: Built with precision and technical authority, JSON Workbench utilizes industrial-standard libraries and high-performance algorithms. The interface follows a strict grid and typographic hierarchy, ensuring your data remains the primary focus. This approach eliminates marketing noise and complex UI abstractions, providing a raw, structure-first environment designed for technical tasks.