Beautifully simple utility tools
Fast, free utilities that work instantly in your browser. No accounts, no fluff — just tools that do one thing well.
Calculators
7Tip Calculator
Calculate tip and split the bill between any number of people.
Aspect Ratio Calculator
Find the aspect ratio of any dimensions or scale width/height while preserving proportions.
BMI Calculator
Calculate your Body Mass Index from height and weight. Metric and imperial units, WHO categories.
Percentage Calculator
Calculate percentages, percentage change, what % X is of Y, and add or subtract a percentage from any number.
Age Calculator
Calculate your exact age in years, months and days. See total days lived and your next birthday countdown.
Salary to Hourly Calculator
Convert annual, monthly, biweekly, weekly, daily or hourly salary to any other pay period. Adjustable working hours.
Online Stopwatch
Start, stop and lap a stopwatch with centisecond precision. Records lap times in a scrollable list.
Developer
6Diff Checker
Compare two texts and instantly see what changed line by line.
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to plain text. Supports standard and URL-safe alphabets.
JSON Formatter
Format, validate and minify JSON instantly. Paste raw JSON and get it beautifully indented.
Unix Timestamp Converter
Convert Unix epoch timestamps to readable dates, or any date to a Unix timestamp. Live current time.
URL Encoder / Decoder
Percent-encode special characters for safe use in URLs, or decode encoded strings back to plain text.
Markdown Previewer
Write or paste Markdown and see the rendered HTML output live. Split view, copy HTML, GitHub-compatible.
Generators
10Password Generator
Generate secure, random passwords with custom length and characters.
UUID Generator
Generate cryptographically secure v4 UUIDs — one or in bulk up to 100 at once.
Lorem Ipsum Generator
Generate paragraphs, sentences or words of Lorem Ipsum placeholder text. Classic or random, copy instantly.
Random Number Generator
Generate secure random numbers in any range. Includes dice roller (d4–d100) and random list picker.
Fantasy Name Generator
Generate fantasy names for elves, dwarves, orcs, humans, dark elves and dragons. Choose race and gender, copy instantly.
Harpy Name Generator
Generate harpy names with Greek and mythological roots. Perfect for D&D, Pathfinder, and fantasy writing.
Dragonborn Name Generator
Generate dragonborn names following D&D 5e draconic conventions. Given names and clan names included.
Tabaxi Name Generator
Generate tabaxi names: evocative nature-word shortnames and full two-part descriptive names for D&D 5e.
Elezen Name Generator
Generate FFXIV-inspired Elezen names in both Wildwood and Duskwight dialects. Ideal for Final Fantasy XIV characters.
Catfolk Name Generator
Generate catfolk names for Pathfinder. Soft rolling sounds with sharp masculine and flowing feminine conventions.
Converters
15Word Counter
Count words, characters, sentences, paragraphs and reading time — live as you type.
Hex to RGB
Convert hex color codes to RGB, HSL and CSS values.
Image Optimizer
Crop, resize and compress JPG, PNG or WebP images with live file-size preview and per-size weight recommendations. 100% private — runs in your browser.
Compress Image for Web
Reduce image file size for fast-loading websites. Compress to WebP or JPEG with live size preview and weight targets per image size.
Crop Image to Square
Crop any photo to a perfect 1:1 square online. Drag to reposition, then compress and download — ideal for avatars and Instagram posts.
Resize Image
Resize images online by setting a max width. Downscale photos to the exact size you need and compress them in the same step.
Convert Image to WebP
Convert JPG and PNG images to WebP for smaller files and faster pages. Adjust quality with a live size preview, all in your browser.
Crop Image for Instagram
Crop photos to Instagram sizes — 1:1 square, 4:5 portrait and 9:16 stories. Compress and download perfectly sized images.
Audio Optimizer
Trim, compress and convert audio to MP3 or WAV with a waveform editor, adjustable bitrate and a live size estimate. 100% private — runs in your browser.
Compress Audio for Web
Reduce audio file size for fast-loading pages. Lower the bitrate, switch to mono and trim, with a live size estimate — all in your browser.
Convert WAV to MP3
Convert WAV to MP3 online and shrink files by up to 95%. Choose the bitrate, trim, and download — fast, private, no upload.
Convert Audio to MP3
Convert WAV, M4A, OGG or FLAC to a universally-playable MP3. Pick a bitrate, trim, and download — private and free in your browser.
Trim Audio Online
Trim and cut audio online with a waveform editor. Drag handles to keep just the part you want, preview it, and export MP3 or WAV.
Reduce Audio File Size
Make an audio file smaller for email and uploads. Lower the bitrate, switch to mono and trim to fit attachment limits — private and free.
Color Contrast Checker
Check color contrast ratio and WCAG AA/AAA accessibility compliance for any text and background color pair.
Music
3Tuner
Free chromatic tuner for any instrument. Detects pitch via microphone and shows note, cents and frequency in real time. No download needed.
Rhythm Trainer
Free rhythm trainer for students and teachers. Generate random rhythm exercises in standard notation with playback, metronome and count-off. No account needed.
Online Metronome
Free browser metronome with adjustable BPM, tap tempo, time signature and visual beat indicator.
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