Everyday utilities.
Zero bloat, zero tracking.
High-performance browser tools running entirely on your device. No signups, no slow ad redirects, and no server telemetry.
Big Display Calculator
Full-width desk calculator with running tape audit history and memory keys.
QR Code Generator
Generate high-resolution PNG and SVG QR codes client-side with zero telemetry.
Compound Interest Calculator
Visual projection of investment growth with monthly contributions and annual tables.
World Time Zone Converter
Dual-city time coordinate planner with interactive 24-hour business hour synchronization.
Word Unscrambler & Anagram Solver
Solve anagrams and find words by length and prefix for Scrabble, Wordle, and vocabulary.
Date & Business Days Calculator
Calculate calendar day spans, elapsed business workdays, or add/subtract time offsets.
Percentage & Profit Margin Calculator
Calculate percentage changes, markups, gross margins, and value proportions instantly.
Text Cleaner & Case Converter
Switch between camelCase, snake_case, UPPERCASE, Title Case, and remove excess whitespace.
Word & Character Counter
Analyze word density, character lengths, sentence structures, and estimated reading times.
Universal Unit & Metric Converter
Convert length, mass, temperature, area, volume, and digital storage without rounding drift.
Aspect Ratio & Screen Calculator
Calculate proportional image dimensions, standard 16:9, 4:3, 21:9 ratios, and CSS padding.
Strong Password & Passphrase Generator
Generate cryptographically secure passwords and Diceware-style passphrases client-side.
Base64 & URL Encoder / Decoder
Encode and decode raw strings and UTF-8 payloads to Base64, URL percent-encoding, or Hex.
Epoch & Unix Timestamp Converter
Convert Unix timestamps to human dates, generate epoch values, and batch-process log lists or CSV columns.
JSON Formatter & Validator
Format, validate, minify, and inspect JSON data with interactive tree view and precise syntax error detection.
Markdown to HTML Live Previewer
Real-time client-side Markdown rendering with raw HTML export and syntax preview.
Line Sorter, Alphabetizer & Deduplicator
Alphabetize line lists, remove duplicate entries, strip empty rows, or reverse sequence.
Sales Tax & Reverse VAT Calculator
Add sales tax or extract VAT and GST backwards from gross receipt totals with global presets.
Tip & Split Bill Calculator
Calculate dining gratuity, custom tip rates, and split checks evenly among groups with round-up options.
Reading Time & Speech Pace Calculator
Calculate silent reading time and spoken presentation duration in minutes and seconds with custom WPM presets.
CSV & Delimited Data Converter
Transform spreadsheet CSV, TSV, or pipe-delimited data into formatted Markdown tables or JSON arrays.
Cryptographic UUID & GUID Workstation
Generate and inspect RFC 9562 identifiers (UUIDv4 random and UUIDv7 time-ordered) with SQL and JSON formatting.
SVG to PNG & ICO Converter
Convert SVG to PNG, WebP, JPEG or a multi-size ICO favicon with transparent or coloured backgrounds. Private, nothing uploaded.
Online Timer with Alarm
Countdown timer with a loud alarm, multiple timers at once, full screen mode and shareable links. No sign-up.
Online Stopwatch with Laps
Accurate stopwatch with lap and split times, fastest and slowest highlights, full screen and CSV export.
Line Break Remover
Remove line breaks from text, join lines with a space or comma, keep paragraphs, and fix PDF copy-paste.
Coin Flip
Fair heads-or-tails coin flip with streaks and history. Flip up to 10 coins or name your own two choices.
Random Number Generator
Generate random numbers in any range. Whole numbers or decimals, no repeats, sorted lists, copy and download.
Number Base Converter
Convert binary, decimal, hex and octal (any base to 36) with exact big numbers, a bit view, and text to binary.
Image Converter
Convert images between PNG, JPG and WebP. Batch convert and download as a ZIP, with nothing uploaded.
PNG to JPG Converter
Convert PNG images to JPG with adjustable quality and background colour. Batch and ZIP, nothing uploaded.
JPG to PNG Converter
Convert JPG and JPEG images to PNG, batch and ZIP, nothing uploaded.
WebP to PNG Converter
Convert WebP images to PNG or JPG so any program can open them. Batch and ZIP, private.
Text Compare / Diff Checker
Compare two texts or files side by side or inline with word-level highlights. Private, nothing uploaded.
BMI Calculator
Body mass index in metric or US units with the WHO adult category, weight range for your height and waist-to-height ratio.
Calorie Calculator (BMR and TDEE)
Estimate resting energy use (BMR) and total daily energy expenditure (TDEE) with the Mifflin-St Jeor formula. Calories or kJ.
Image Resizer
Resize images by pixels or percent, batch resize many photos and download a ZIP. Private, nothing uploaded.
Image Cropper
Crop a picture in your browser: drag the frame, lock a shape or type exact pixels. Private, nothing uploaded.
KDP Keyword Packer
Fit your keyword list into KDP's seven 50-character boxes with no repeated words, or build Etsy tags. Private.
Book Sales Rank Estimator
Turn an Amazon Best Sellers Rank into an estimated range of sales per day and month. Compare books, calibrate, add royalty.
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