DEV Community: Bix Tools

Building a Client Side Rich Text to PDF Editor and PDF Merger in the Browser

Bix Tools — Fri, 13 Nov 2026 09:57:43 +0000

Most online PDF tools upload your files to a backend server just to combine two pages or convert a text note into a PDF. Using client side JavaScript and canvas rendering, we built a complete document suite on BixTools that runs locally inside the user's browser.

Key Capabilities

Text to PDF Converter: Includes 25 classic Microsoft Word and web fonts, custom heading styles, text and highlight colors, A4 and US Letter page setup, and direct vector print export.
Merge PDF & Split PDF: Reorder, extract, or combine PDF pages in memory with zero watermarks.
JPG to PDF & Image Compressor: Convert and shrink images before assembling documents.

Try the live tools at BixTools and read our technical overview at About BixTools.

Why Vanilla HTML, CSS, and JS Still Win for Fast Web Utility Platforms

Bix Tools — Fri, 13 Nov 2026 09:57:11 +0000

Heavy single page application frameworks often ship hundreds of kilobytes of hydration JavaScript before a user can click a single button. For utility websites where visitors want to compress an image, generate a QR code, or merge a PDF in five seconds, load speed is everything.

On BixTools, keeping each tool page in clean HTML5, shared cached CSS, and focused vanilla JavaScript delivered 98 to 99 Mobile Performance and 100 Accessibility, Best Practices, and SEO across Lighthouse Slow 4G tests.

Direct Tool Links & Architecture Guides

PDF Utilities: Merge PDF, Split PDF, JPG to PDF, Text to PDF Editor
Image Utilities: Image Compressor, Image Resizer, HEIC to JPG, WebP to PNG
Calculators & Generators: Loan & EMI Calculator, BMI Calculator, Unit Converter, QR Code Generator, Password Generator, Word Counter, Stylish Text Generator

Explore the complete engineering notes on About BixTools.

Designing a Multi Currency Loan and Amortization Calculator in Vanilla JS

Bix Tools — Fri, 13 Nov 2026 09:10:41 +0000

Building a financial loan calculator that matches real bank figures requires more than plugging numbers into the standard EMI formula. If you do not round each month's interest and principal split to the smallest unit of the currency, the monthly schedule table will not add up to the summary total.

In the BixTools calculator suite, we built a zero dependency Loan and EMI Calculator that automatically detects the visitor's locale (Intl.NumberFormat), supports 9 major currencies (USD, GBP, EUR, CAD, AUD, NZD, SGD, AED, INR), and models extra monthly principal payments.

You can test the live calculator at BixTools and read our accuracy standards on About BixTools.

How We Built 16 Privacy First Browser Utilities Without Backend File Uploads

Bix Tools — Fri, 13 Nov 2026 09:10:39 +0000

When you need to merge two PDFs, compress a PNG, or convert an iPhone HEIC photo to JPG, most online tools force you through a slow server upload queue, stamp watermarks on your output, or ask for a signup.

While building BixTools, our goal was straightforward: run PDF, image, text, and calculator utilities directly inside the user's browser so files stay on the device.

Core Utilities Running in the Browser

PDF Suite: Merge PDF, Split PDF, JPG to PDF, and a rich 25 font Text to PDF editor on BixTools.
Image Suite: Client side Image Compressor, Image Resizer, HEIC to JPG, and WebP to PNG.
Calculators & Generators: Multi currency Loan and EMI Calculator with CSV schedule export, WHO and Asian standard BMI Calculator, NIST Unit Converter, QR Code Generator, and Password Generator.

Check out the live tools at BixTools and read our technical principles on About BixTools.