Launching today
ToolStack is 38 free online tools built for developers, marketers, writers, and creators. No signup, no paywalls, instant results. Tools include: JSON Formatter, JWT Decoder, SQL Formatter, Grammar Checker, Paraphrasing Tool, Hashtag Generator, QR Code Generator, Invoice Generator, UTM Builder, Regex Tester, CSS Gradient Generator, and 27 more. Every AI tool runs on GPT-4o. Everything works in your browser — zero data stored, zero accounts required.
Hey PH — I built ToolStack because I kept paying for tools that should be free. Word counters behind paywalls, JSON formatters with forced signups, invoice generators with watermarks.
38 tools live today. No account, no ads (yet), instant results. Built for devs, writers, and marketers who just want to get things done.
Would love brutal feedback — especially on the dev tools. What's missing? What's broken? What would make you actually bookmark it?