File & Data Utilities
8 UtilitiesView CSV data, convert between CSV and JSON, inspect file headers, calculate cryptographic hashes, merge text files, and decode Base64 to Image or PDF. All tools run 100% client-side with zero data transmitted to any external server.
CSV Viewer & Filter
Upload or paste CSV spreadsheet data to view, search, and inspect records in a clean, responsive data table with zero server uploads.
CSV to JSON Converter
Convert CSV spreadsheet tables into structured JSON arrays of objects with automatic header mapping and data type detection.
JSON to CSV Converter
Convert JSON arrays of objects into RFC 4180 compliant CSV files with automatic key union and quotation escaping in your browser.
File Information & Size Inspector
Analyze any local file byte size, MIME type, extension, and calculate estimated transfer speeds on 4G, 5G, and broadband networks.
File Hash Generator
Calculate cryptographic SHA hashes for any local file using the native Web Crypto API with zero file uploads and complete verification integrity.
Text File Merger
Merge multiple text, markdown, CSV, or code files into a single consolidated document with customizable separators and file headers.
Base64 to Image Converter
Decode Base64 strings (with or without Data URI prefix) into high-resolution PNG, JPEG, SVG, WebP, and GIF images with instant visual preview, dimensions analysis, file size inspector, and one-click image download.
Base64 to PDF Converter
Convert Base64-encoded PDF documents into viewable and downloadable PDF files with real-time browser preview, page size calculation, and instant PDF export.