The latest articles on DEV Community by PursTech (@purstech). https://dev.to/purstech 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%2F4235140%2F65c457b8-f417-47eb-abd1-8700bc0f3b86.jpg https://dev.to/purstech en PursTech Mon, 09 Nov 2026 12:45:25 +0000 https://dev.to/purstech/i-built-purstech-50-100-client-side-browser-utilities-zero-file-uploads-no-login-cen https://dev.to/purstech/i-built-purstech-50-100-client-side-browser-utilities-zero-file-uploads-no-login-cen <p>Every developer, writer, and SEO specialist frequently needs quick everyday utilities: formatting messy JSON, testing regex patterns, compressing PDFs, extracting text via OCR, or generating <code>llms.txt</code> and meta tags.</p> <p>However, most traditional "free tool" websites upload your sensitive files and configs to remote servers, add watermarks, or hit you with daily usage caps and sign-up walls.</p> <p>To solve this, I built <strong><a href="https://www.purstech.com/" rel="noopener noreferrer">PursTech</a></strong> — a free, privacy-first online toolbox with <strong>51 browser-based utilities across 8 categories</strong> where every tool executes 100% locally in your browser.</p> <h3> Why 100% Client-Side Matters </h3> <ul> <li> <strong>Zero Server Uploads:</strong> PDF compression, image editing, and OCR run locally on your device inside the browser. Your files never touch our servers.</li> <li> <strong>No Account or Login Walls:</strong> Open any tool and use it immediately with unlimited daily usage.</li> <li> <strong>Instant Processing:</strong> No upload queues or server wait times.</li> </ul> <h3> What's Inside the 51 Tools? </h3> <ul> <li> <strong>💻 Developer Tools (14 tools):</strong> JSON Formatter &amp; Validator, Regex Tester, SVG Editor (with React export), Base64 Encoder, QR Code Generator, HTML/CSS/JS Minifiers, Markdown Editor, UUID &amp; Hash Generators, and Diff Checker.</li> <li> <strong>📄 PDF Tools (5 tools):</strong> Client-side PDF Compressor, PDF Merger, PDF Splitter, PDF to Word, and Word to PDF.</li> <li> <strong>🖼️ Image &amp; OCR Tools (6 tools):</strong> Image Compressor, Image Resizer, Background Remover, Favicon Generator, and Browser OCR (Image to Text).</li> <li> <strong>📊 SEO Tools (6 tools):</strong> <code>llms.txt</code> Generator, Meta Tag Generator, XML Sitemap Generator, <code>robots.txt</code> Generator, Open Graph Preview, and Keyword Density Checker.</li> <li> <strong>🔒 Security, AI &amp; Finance Tools (20 tools):</strong> SSL Certificate Checker, IP Address Lookup, Password Generator, AI Grammar &amp; Readability Checkers, Text utilities, and 10 Finance Calculators.</li> </ul> <p>Try the full suite here: <strong><a href="https://www.purstech.com/" rel="noopener noreferrer">https://www.purstech.com/</a></strong></p> <p>Which browser utility do you find yourself Googling most often? Let me know in the comments—I'm actively building new client-side tools based on developer feedback!</p> showdev webdev javascript productivity