The latest articles on DEV Community by Prathamesh Karande (@prathamesh_karande_1). https://dev.to/prathamesh_karande_1 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4118582%2F8ee16b18-621f-41f8-84fe-28c3fb3d77c7.png https://dev.to/prathamesh_karande_1 en Prathamesh Karande Thu, 10 Sep 2026 05:29:51 +0000 https://dev.to/prathamesh_karande_1/i-built-a-free-toolkit-with-38-tools-for-students-no-sign-up-runs-entirely-in-the-browser-3lel https://dev.to/prathamesh_karande_1/i-built-a-free-toolkit-with-38-tools-for-students-no-sign-up-runs-entirely-in-the-browser-3lel <p>Every semester I found myself bouncing between five different websites just to calculate my CGPA, check attendance percentage, split a grocery bill with roommates, or merge a couple of PDFs for a submission. Eventually I got annoyed enough to just build all of it myself, in one place.</p> <h2> What it does </h2> <p>Toolbench is a collection of 38 free tools organized into categories:</p> <ul> <li> <strong>Academic</strong> — CGPA/GPA calculators, required marks calculator</li> <li> <strong>Attendance</strong> — percentage tracker, "classes needed" and "classes I can miss" calculators</li> <li> <strong>Student finance</strong> — expense splitter, EMI/interest calculators</li> <li> <strong>PDF tools</strong> — merge, split, image-to-PDF</li> <li> <strong>Image tools</strong> — compress, resize, format conversion</li> <li> <strong>Developer tools</strong> — JSON formatter, Base64 encoder/decoder, UUID generator</li> <li> <strong>Everyday</strong> — age calculator, tip calculator, GST/discount calculators, BMI</li> <li> <strong>Study &amp; focus</strong> — Pomodoro timer, exam countdown</li> </ul> <h2> How it's built </h2> <p>Everything runs entirely client-side in the browser — no backend, no file uploads, no accounts. PDF handling uses <code>pdf-lib</code>, QR generation uses <code>qrcodejs</code>, everything else is vanilla JS. It's hosted free on Netlify.</p> <p>There's also a small blog section with 19 explainer guides behind the calculators (how CGPA math actually works, why 75% attendance rules exist, simple vs compound interest, etc.) — mostly so the site has real written content, not just bare tools.</p> <h2> Try it </h2> <p>🔗 <a href="https://mytoolbench.netlify.app" rel="noopener noreferrer">https://mytoolbench.netlify.app</a></p> <p>Would love feedback — especially on what tools are missing, or things that could work better. Happy to keep adding to it.</p> webdev showdev javascript productivity