ファイル変換
Convert CSV to JSON, XML to JSON, Markdown to HTML, Excel to HTML tables, and CSV to Excel spreadsheets.
Available Utilities
CSV to JSON / JSON to CSV
Convert CSV files to JSON array objects or transform JSON payloads into structured CSV spreadsheets.
XML to JSON / JSON to XML
Parse XML tags into clean JSON objects or convert JSON data hierarchies back into XML documents.
Markdown to HTML / HTML to Markdown
Convert Markdown notes into clean HTML markup or extract Markdown formatting from HTML strings.
Excel to HTML Table
Convert spreadsheet data and CSV files into responsive, styled HTML table markup.
CSV to Excel
Format raw CSV files into Microsoft Excel compatible TSV/XLS spreadsheets with UTF-8 BOM encoding.
Explore Other Categories
Text Tools
Transform, format, convert, clean, and analyze plain text with instant client-side tools.
PDF Tools
Extract text, inspect metadata, count words, split pages, and edit PDF documents.
Image Tools
Compress PNG/JPEG/WebP images, resize photos, generate color palettes, and optimize SVGs.
SEO Tools
Generate meta tags, robots.txt, XML sitemaps, inspect keyword density, preview SERPs, and build Open Graph tags.