Productivity & Calculators
Calculate document automation ROI, count words and characters, and generate QR codes with private, in-browser tools.
Document Automation ROI Calculator
Estimate hours and money saved by automating Word and PDF documents from Excel or CSV, and match your volume to a TryDoku plan.
QR Code Generator
Create QR codes from text or URLs with custom size, colors, and error correction. Download PNG or SVG, including batch ZIP exports.
Word & Character Counter
Count words, characters, sentences, paragraphs, and estimate reading time. Detects template variables automatically.
Client-Side Architecture Guarantee
Every tool in the Productivity & Calculators 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 →Spreadsheet & Data Tools
Convert Excel to CSV, parse CSV to JSON, count words in bulk, and transform spreadsheets securely in your browser.
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.