The latest articles on DEV Community by hammadrasool2000-svg (@hammadrasool2000svg). https://dev.to/hammadrasool2000svg https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4132064%2F95971a04-d95d-4340-8e80-d1afced38a8d.png https://dev.to/hammadrasool2000svg en hammadrasool2000-svg Fri, 18 Sep 2026 20:27:26 +0000 https://dev.to/hammadrasool2000svg/why-i-built-toolstash-free-client-side-developer-tools-3pi7 https://dev.to/hammadrasool2000svg/why-i-built-toolstash-free-client-side-developer-tools-3pi7 <p>Every developer has a handful of five-second tasks that come up constantly — pretty-printing a blob of JSON, generating a UUID for a test fixture, checking why two config files don't match. Most tool sites for this are slow, ad-choked, or ask you to sign up for something you'll use twice a year.</p> <p>That's why I built <a href="https://toolstash.tools" rel="noopener noreferrer">ToolStash</a> — a small, growing collection of developer utilities that run entirely in the browser:</p> <ul> <li> <strong>Diff Checker</strong> — line-by-line or word-by-word comparison</li> <li> <strong>Hash Generator</strong> — MD5, SHA-1, SHA-256, SHA-512, NTLM</li> <li> <strong>UUID Generator</strong> — single or bulk (up to 100 at once)</li> <li> <strong>JSON Formatter</strong> — beautify, validate, minify</li> <li><strong>YAML to JSON Converter</strong></li> <li> <strong>Markdown to HTML Converter</strong> — with live preview</li> <li> <strong>SQL Formatter</strong> — supports MySQL, PostgreSQL, SQL Server, Oracle, BigQuery, Snowflake, SQLite</li> <li> <strong>Regex Tester</strong> — live match highlighting and capture groups</li> </ul> <h3> Why client-side only? </h3> <p>Every tool runs as plain JavaScript in your browser. There's no backend for your input to pass through, so nothing you paste is ever uploaded — which matters if you're debugging something with real (if low-stakes) data in it, like a config file or a sample record.</p> <h3> What's next </h3> <p>I'm adding new tools regularly — base64 encode/decode, a cron expression builder, and a password generator are next up. If there's a utility you find yourself needing often, I'd love to hear about it in the comments.</p> <p>Try it: <a href="https://toolstash.tools" rel="noopener noreferrer">https://toolstash.tools</a></p> showdev webdev javascript productivity