Utils4Work — Free Online Utilities for Everyday Work

A small collection of fast, private, browser-only tools for clerks, students, freelancers, and makers.

這個工具是做什麼的

Utils4Work is a free trilingual (English / Traditional Chinese / Simplified Chinese) collection of ten everyday utilities. Every tool runs entirely in your browser — there is no signup, no tracking, and no server processing your data.

It is a passion project, maintained on the side and shared with anyone who finds it useful.

Available tools

  • PDF Signer — drop signature and company chop images onto any PDF in your browser; drag, resize, and rotate, then download a flattened PDF.
  • PDF Merger — combine multiple PDFs into a single document; drag rows to reorder, preview any file full-screen, then download the merged PDF.
  • Signature Cleaner — remove the white background from a signature, chop, or stamp image and export a transparent PNG ready for PDF overlay.
  • Cheque Amount Converter — convert numbers to written cheque amounts in English, Traditional Chinese, and Simplified Chinese.
  • Word Counter & Text Analyzer — word, character, punctuation, and line counts plus reading and speaking time estimates.
  • Colour Picker — interactive HEX, RGB, HSV, HSL, and CMYK colour picker and converter.
  • Random Password Generator — cryptographically secure password generator with custom length and character options.
  • Roman ↔ Arabic Numeral Converter — bidirectional Roman/Arabic numeral conversion up to 3999.
  • Unit Converter — length, mass, temperature, volume, area, and speed unit conversions.
  • Random Picker — coin flip, spinning wheel, and dice roller for random outcomes.

常見問題

Is Utils4Work free?

Yes. Every tool is free to use, with no signup, paywall, or upsell.

Do you collect or store my data?

No. All computation happens in your browser; nothing you type, paste, or convert leaves your device.

What languages are supported?

English, Traditional Chinese (zh-TW), and Simplified Chinese (zh-CN). Each tool ships in all three locales.

Do I need to install anything?

No. The site is a Progressive Web App, so you can optionally add it to your home screen, but it works straight from any modern browser.