Spreadsheet & Data Tools
Convert Excel to CSV, parse CSV to JSON, count words in bulk, and transform spreadsheets securely in your browser.
Bulk Word Count
Count words across many Word, text, and Markdown files at once with per-file totals and CSV export.
CSV to JSON Converter
Convert CSV or TSV text and files into formatted JSON. Supports array-of-objects, auto-delimiters, RFC 4180 quotes, and type inference.
Excel to CSV Converter
Convert .xlsx workbooks to clean CSV. Select worksheets, choose delimiters, preview data, and download instantly.
Client-Side Architecture Guarantee
Every tool in the Spreadsheet & Data Tools suite executes locally using WebAssembly and Web Standards. Documents and spreadsheets are never uploaded to any remote server or third party.
Explore Other Free Tool Suites
Word & Document Tools
Free browser-based Microsoft Word (.docx) tools. Change paper size, add page numbers, reorganize pages, inspect and remove metadata without server uploads.
View 7 tools →PDF Tools
Merge PDFs, inspect form fields, count pages, remove metadata, and convert PDF to JPG directly in your browser with zero file uploads.
View 5 tools →Productivity & Calculators
Calculate document automation ROI, count words and characters, and generate QR codes with private, in-browser tools.
View 3 tools →Need Automated Batch Document Generation?
TryDoku automates high-volume contracts, invoices, and certificates from Excel spreadsheets into Word and PDF documents in seconds.