Hey Product Hunt! 👋 I'm Mubashar, the solo builder behind FlowToolkit. This started from a frustration I kept running into — every time I needed to split a large CSV or format a JSON file, I'd land on some sketchy site that uploaded my file to a server I knew nothing about. For personal files that's annoying. For client data, it's a real problem. So I built FlowToolkit around one rule: your data never leaves your browser. Ever. Every one of the 32 tools — CSV splitter, JSON formatter, PDF editor, image resizer, background remover — runs entirely client-side using the browser's own compute. No uploads. No accounts. No server seeing your files. It sounds like a small thing, but once you feel the difference — a 500MB CSV split in under 2 seconds, locally — it's hard to go back. Would love to hear what tools you'd want added next. I'm shipping new ones regularly based on feedback. 🚀

FlowToolkit

30+ FREE Tools 100% in your browser. No Account needed

30+ FREE Tools 100% in your browser. No Account needed