Best Free Online Developer Tools to Use in 2026
A practical, opinionated list of the best free online developer tools worth using in 2026, organized by category so you can find what you need fast.
Aug 08, 2026
Convert HTML markup to PDF files. Customize page size, orientation, and margins. All processing happens in your browser.
This tool converts HTML markup to PDF files directly in your browser. Unlike online converters that upload your HTML to a server, all processing happens client-side using JavaScript — your HTML never leaves your computer.
You can customize page size (A4, Letter, Legal, A3, A5), orientation (portrait or landscape), and margins. The generated PDF preserves your HTML styling, including colors, fonts, images, and layout. Use the browser print option for maximum compatibility or the auto-convert for a quick PDF download.
Yes. All HTML to PDF conversion happens entirely in your browser using JavaScript. Your HTML markup is never uploaded to any server. You can disconnect from the internet after loading the page and it will still work.
The PDF preserves standard HTML elements including headings, paragraphs, tables, lists, images, links, and CSS styling. For complex layouts with JavaScript interactivity, use the browser print option which renders the page exactly as it would appear in a browser.
"Convert to PDF" uses html2canvas and jsPDF libraries loaded from CDN to generate the PDF automatically. "Open in Browser Print" opens the HTML in a new window and triggers the browser's native print dialog where you can select "Save as PDF" — this gives you more control over print settings.
No. Everything runs entirely in your browser. Your data is never sent to any server.
Blog
A practical, opinionated list of the best free online developer tools worth using in 2026, organized by category so you can find what you need fast.
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