The latest articles on DEV Community by Sn0wFR (@sn0wfr). https://dev.to/sn0wfr https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3812692%2Fd1ddebd7-f7e8-44a2-a1dd-740875ae4a6b.png https://dev.to/sn0wfr en Sn0wFR Wed, 11 Mar 2026 14:54:28 +0000 https://dev.to/sn0wfr/i-built-37-free-dev-tools-that-run-entirely-in-your-browser-looking-for-feedback-2gbb https://dev.to/sn0wfr/i-built-37-free-dev-tools-that-run-entirely-in-your-browser-looking-for-feedback-2gbb <p>Every time I need to format JSON, decode a JWT, or convert YAML, I end up on a random website that probably sends my data to some server. So I built ReformatIt, a collection of 37 developer tools that run 100% client-side. No data ever leaves your browser.</p> <p>Full transparency: this started as a personal tool for my own workflow. I'm a C++ developer, not a web dev.<br> I built this almost entirely with an AI coding assistant (Claude). I wanted a tool that I'd actually trust with my data, and I was curious how far AI-assisted development could take someone outside their comfort zone. The result surprised me, so I'm putting it out there.</p> <p>The site is still in early testing. I'm looking for honest feedback before going any further.</p> <p>What's inside<br> 37 tools across 8 categories — formatting, encoding, converting, generating, security, and more. The highlights:<br> JSON/XML/HTML/SQL formatters, <br> the basics, but done right</p> <p>Base64, URL encode, JWT decode, hash generators, <br> the daily drivers</p> <p>Password generator, RSA keygen, Bcrypt,<br> security stuff</p> <p>cURL → Code, Chmod Calculator, Regex Tester <br> the niche ones I always need</p> <p>The part I'm most proud of: Visual Pipeline Editor<br> You can chain transformations by connecting nodes visually. Instead of building N×N dedicated converters, I built an Intermediate Representation system, each format just knows how to parse and serialize to a common JS object. All 25 combinations (JSON/YAML/XML/CSV/TOML) work automatically.</p> <p>Drag, connect, see results in real-time.</p> <p>Stack<br> Next.js 16, TypeScript, Tailwind v4, shadcn/ui, React Flow. 142 tests. i18n (EN/FR). PWA-ready.</p> <p>What I'm looking for<br> Bugs (there are some, I'm sure)<br> Missing tools you'd actually use<br> UX issues stuff that feels off<br> Honest opinions, is this useful or just another tool graveyard?</p> <p>🔗 reformatit.com</p> <p>This is a side project, not a startup pitch. If it's useful to people beyond me, cool. If not, at least I learned a lot building it.</p> productivity showdev tooling nocode