FreeDevKit - 39+ free browser tools. No signup. No data sent.

Hey Product Hunt! 👋 I built FreeDevKit because I was tired of the same frustrating cycle: need a quick tool, find one online, hit a signup wall, get asked for a credit card, or watch my data get uploaded to someone's server. I just wanted to format some JSON. Or generate a QR code. Or make an invoice. Why does that need an account? So I built FreeDevKit — 39+ tools that run entirely in your browser. No signups, no data leaves your device, no hidden fees. Ever. Here's what you can do right now: Generate professional invoices, receipts, and quotes Format JSON, encode Base64, generate passwords Remove image backgrounds, compress and crop images Create meta tags, check SEO, generate sitemaps and schema markup Use AI translation and speech — all running locally in your browser The privacy part matters to me. Every tool processes data on YOUR machine. Nothing gets sent to any server. I think that should be the default, not the exception. I'd love your feedback — what tools should I add next? What would make this more useful for your workflow? Try it at freedevkit.com — pick any tool, no signup needed. You'll be using it in 2 seconds.