33+ Free Developer Tools That Never Send Your Data

<p>Hey DEV community! 👋</p> <p>As a developer and digital marketer, I got sick of using random, ad-stuffed websites every time I needed to quickly format JSON, calculate a margin,

<p>Every web developer knows TinyPNG. It's been the go-to image compressor for years. But after years of using it, I started questioning: <strong>why am I uploading my images to

<p>We've all done it.</p> <p>You're debugging a production issue at 2am. You have a JWT <br /> token you need to decode <em>right now</em>. So you Google <br /> "JWT decoder

<div class="highlight js-code-highlight"> <pre class="highlight markdown"><code>privacy webdevEvery time I uploaded a file to an online PDF tool, I wondered: what happens to it

<p>Stop for a second. How many tabs do you have open right now?</p> <p>Go ahead. Count them.</p> <p>If you're a developer mid-debugging session, I'm willing to bet at least three

<p>Every developer has been there: you need to format a JSON blob, decode some Base64, or convert a timestamp. You open your terminal, look for the right npm package, or — worse —

<p>The obsession with centralizing heavy compute on backend servers is a massive bottleneck for both cost and latency. In 2026, as more applications move to the edge, developers

<p>If you've ever tried building a SaaS or a tool aggregator, you know the drill: file uploads equal server costs. Processing PDFs or stripping image backgrounds usually requires