Tools & Experiments
A collection of small browser-based utilities I've built for learning, productivity, and scientific curiosity.
Virtual Science Labs
Interactive, browser-based experiments exploring the pH scale, acid-base titrations, spectrophotometry (Beer-Lambert Law), reaction kinetics, and fundamental physics.
Client-Side Image Studio
Compress MB to KB, resize, crop, rotate, transcode, watermark, and apply LUT filters.
A complete in-browser image power suite. Compress images to exact target KB limits (under 50KB or 200KB) with iterative binary search, resize dimensions with aspect ratio lock, crop with visual handles, rotate and mirror, convert formats (JPG, PNG, WEBP), apply 12+ aesthetic LUT filters, stamp custom text/logo watermarks, and export bulk images to PDF with zero server latency.
Client-Side PDF Studio
Compress, merge, split, sign, redact, and convert camera photos to searchable PDFs.
A complete in-browser PDF power suite. Merge documents with page-to-page reordering, split into individual PDFs or ZIP archives, compress file size up to 80%, add authentic signatures, erase unwanted elements with Whiteout, and convert camera photos to searchable PDFs with OCR.
Morse Code Practice Tool
Learn, translate, and test your speed with interactive audio Morse code.
A browser-based Morse code learner and training utility featuring real-time Web Audio tones, quiz practice modes, and bidirectional text-to-Morse translation.
Pomodoro Focus Timer
Calm, distraction-free productivity timer with session intervals.
A distraction-free, Apple HIG-inspired focus timer based on the Pomodoro Technique. Features customizable session intervals, session counting, and local state persistence.
World Clock & Time Zones
Track current time, daylight status, and time differences worldwide.
Accurate international time tracking using native browser Intl.DateTimeFormat APIs with verified IANA time zones, day/night indicators, and customizable city lists.
Chemistry Periodic Challenge
Test and sharpen your recall of elements, atomic numbers, and chemical properties.
An interactive quiz testing elemental recall, atomic numbers, chemical symbols, and periodic trends. Designed for science students, educators, and curious minds.
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More from Alok Das
These interactive tools are personal side-projects built for exploration and utility. My primary professional commitment is in M.Sc. Chemistry, analytical research, and laboratory methodology.