# Show DEV: ToolsMonk — 250+ Free Online Tools That Run on Your Device

> Source: <https://dev.to/toolsmonk/show-dev-toolsmonk-250-free-online-tools-that-run-on-your-device-1d5c>
> Published: 2026-10-10 07:03:29+00:00

Hey devs! I want to show you **ToolsMonk** — a free suite of 250+ online tools built around one core principle: **your files are processed on your device whenever technically possible.**

## 
  
  
  What's inside

- 
**PDF tools** — edit, merge, split, compress, sign, OCR, and convert to/from Word / Excel / PowerPoint
- 
**Image tools** — resize, convert, rotate, background remover, photo editor
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**Text & developer tools** — JSON/CSV converters, regex tester, JWT decoder, markdown tools
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**SEO tools** — keyword density checker, SERP snippet generator, meta tag tools
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**Calculators & converters** — loan/EMI, depreciation, fuel economy, cooking conversions
- 
**AI helpers** — AI PDF summarizer and AI text humanizer (the few tools that need a server are openly listed at toolsmonk.com/where-your-files-are-processed)

## 
  
  
  Why "on-device" matters

Most tools run 100% in the browser — no uploads, no account, no file-size anxiety. Privacy by architecture, not by policy. Merge a 200-page contract PDF and the bytes never leave your machine.

## 
  
  
  Three ways to use it

- 
**Web** :[toolsmonk.com](https://toolsmonk.com)
- 
**Windows desktop app** : Electron-based installer (v1.1.24) distributed via GitHub Releases
- 
**Android app** : built with Flutter, available on Google Play

Stack notes for the curious: Next.js (App Router) on the web, Electron for desktop, Flutter for Android. One codebase philosophy per platform, shared tool logic where it makes sense.

## 
  
  
  Feedback wanted

If you get a chance to try it, I'd genuinely love feedback:

1. Which tools do you actually reach for in your daily work?
2. What's missing from your current toolkit that you wish existed as a no-signup web tool?

Thanks for reading! 🙏