I vibecoded 177 tools for my own use (CalcBin)
Hey HN! I've been building random tools whenever I needed them over the past few months, and now I have 177 of them. Started because I was tired of sketchy converter sites with 10 ads, so I just... made my own. Some highlights for the dev crowd: Developer tools: - UUID Generator (v1/v4/v7, bulk generation): https://calcbin.com/tools/uuid-generator - JWT Generator & Decoder: https://calcbin.com/tools/jwt-generator - JSON Formatter/Validator: https://calcbin.com/tools/json-formatter - Cron Expression Generator (with…
In plain words
CalcBin is a collection of 177 utility tools built ad-free for developers and general users. It includes developer-focused features like UUID generators, JWT and Base64 tools, JSON formatters, regex testers, cron expression generators with natural language support, and SVG optimization. The creator built the suite to replace cluttered converter websites filled with advertisements, offering clean, straightforward utilities for common technical tasks without bloat or tracking.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hey HN! I've been building random tools whenever I needed them over the past few months, and now I have 177 of them. Started because I was tired of sketchy converter sites with 10 ads, so I just... made my own. Some highlights for the dev crowd: Developer tools: - UUID Generator (v1/v4/v7, bulk generation): https://calcbin.com/tools/uuid-generator - JWT Generator & Decoder: https://calcbin.com/tools/jwt-generator - JSON Formatter/Validator: https://calcbin.com/tools/json-formatter - Cron Expression Generator (with natural language): https://calcbin.com/tools/cron-expression-generator - Base64 Encoder/Decoder: https://calcbin.com/tools/base64 - Regex Tester: https://calcbin.com/tools/regex-tester - SVG Optimizer (SVGO-powered, client-side): https://calcbin.com/tools/svg-optimizer Fun ones: - Random Name Picker (spin wheel animation): https://calcbin.com/tools/random-name-picker - QR Code Generator: https://calcbin.com/tools/qr-code-generator Everything runs client-side (Next.js + React), no ads, no tracking, works offline. Built it for myself but figured others might find it useful. Browse all tools: https://calcbin.com/tools Tech: Next.js 14 App Router, TypeScript, Tailwind, Turborepo monorepo. All open to feedback!
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