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

A developer launched ToolsMonk, a free suite of more than 250 online utilities that process files on the user's device whenever technically possible. The collection spans PDF, image, text, developer, SEO and calculator tools, with a small set of AI helpers such as a PDF summarizer and text humanizer that require a server and are openly listed. It is available as a web app built on Next.js, a Windows Electron desktop app (v1.1.24) distributed via GitHub Releases, and a Flutter-based Android app on Google Play.

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 - Text & developer tools — JSON/CSV converters, regex tester, JWT decoder, markdown tools - SEO tools — keyword density checker, SERP snippet generator, meta tag tools - 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 🙏