About DevKitPack

DevKitPack is a free, open-access collection of developer and designer utilities built for focused, productive work. No accounts, no subscriptions, no clutter — just tools that quietly do their job.

Every tool is designed to be fast, minimal, and distraction-free. We believe the best utility is one that gets out of your way.

• ⏱️
  Focus Timer

  A clean, distraction-free Pomodoro timer with ambient sounds to help you stay in deep focus.

• ✍️
  Word Counter

  Instantly count words, characters, and sentences as you type — perfect for essays, posts, and SEO.

• 🧮
  Unit Converter

  Convert CSS units, colors, time, and angles — plus length, weight, temperature, area, volume, speed, data, pressure, and energy with units from around the world.

• {}
  JSON Formatter

  Paste JSON to auto-format with 2-space indentation, minify on demand, and instantly detect syntax errors with the exact line number.

• ⬛
  QR Generator

  Generate QR codes for URLs, text, email, and phone numbers — customize size and colors, then download as PNG or SVG.

• 🗜️
  Image Compressor

  Compress JPEG, PNG, and WebP images in your browser — no server upload, no privacy risk. Batch processing and ZIP download supported.

• ⚖️
  BMI Calculator

  Calculate your Body Mass Index with metric or imperial units. Includes a visual gauge, WHO weight categories, and instant results.

• 🔡
  Base64 Encoder/Decoder

  Encode text to Base64 or decode Base64 to text instantly. Also convert images to Base64 data URIs — all in your browser, no uploads needed.

• %
  Percentage Calculator

  Calculate what X% of a number is, find the percentage change between two values, or reverse-calculate the whole from a part.

• 🏦
  Loan Calculator

  Calculate monthly payments, total interest, and full amortization schedule. Supports early repayment simulation.

• 📈
  Stock Average Calculator

  Calculate your average purchase price across multiple stock buy-ins. Add unlimited rounds and instantly see cost basis, total investment, and profit/loss.

Alongside the tools, we publish practical articles on productivity, design systems, and front-end craft — short, focused reads written for makers who value their time.

We make tools we'd want to use ourselves: no sign-up walls, no dark patterns, no unnecessary features. Speed and simplicity are features. This site is ad-supported to keep everything free for everyone.

Have feedback, a tool idea, or just want to say hello? Reach us at saepian2@gmail.com.