# Vibe Tools > A growing collection of 13 free, zero-install, privacy-first browser utilities. Every tool runs 100% locally in client-side JavaScript—no accounts, and no uploads: your files and text never leave your device. The site shows Google ads, which may use cookies. Site: https://vibetools.au/ Full documentation for AI assistants: https://vibetools.au/llms-full.txt ## Design & Prototyping Tools - [ChatSim: Conversation Builder & Simulator](https://vibetools.au/tools/chatsim/index.html): Visual mobile chat and delivery tracking simulator for iOS and Android prototypes with multi-step flows, BroadcastChannel sync, and JSON import/export. - [Invite Studio](https://vibetools.au/tools/invite.html): Design clean HTML event invitations with Gmail-safe email markup, Google/Outlook/Yahoo calendar links, RFC 5545 .ics export, and stateless share URLs. - [Palette Roulette](https://vibetools.au/tools/palette.html): Interactive 5-swatch color palette generator using analogous, complementary, triadic, split-complementary, and monochrome harmonies with CSS variables and JSON export. - [Gradient Lab](https://vibetools.au/tools/gradient.html): Interactive CSS linear, radial, and conic gradient builder with draggable color stops, angle control, presets, and one-click CSS copy. ## Developer & Writing Tools - [JSON Doctor](https://vibetools.au/tools/json.html): Client-side JSON formatter, minifier, key sorter, collapsible tree inspector, structure stats analyzer, and exact line/column syntax error locator. - [Regex Playground](https://vibetools.au/tools/regex.html): Live JavaScript regular expression tester with g/i/m/s/u flags, match highlighting, capture/named group inspection, replace preview, and cheat sheet. - [Markdown Studio](https://vibetools.au/tools/markdown.html): Split-pane GitHub Flavored Markdown editor with live sanitized preview, word/read-time stats, localStorage autosave, and .md/.html export. - [Passphrase Smith](https://vibetools.au/tools/passphrase.html): Cryptographically random Diceware-style passphrase and strong password generator using Web Crypto API rejection sampling and real-time entropy estimation. ## Generative Art & Media Utilities - [Flow Field](https://vibetools.au/tools/flowfield.html): GPU/canvas generative art studio featuring Perlin flow fields, WebGL2 fractals (Julia, Mandelbrot, Burning Ship, Newton, IFS Flame), Weirdcore scenes, and PNG export. - [QR Forge](https://vibetools.au/tools/qr.html): High-resolution PNG QR code generator for URLs, plain text, and Wi-Fi credentials (WPA/WEP/nopass) with custom colors, rounded modules, and error correction levels. - [Image Squish](https://vibetools.au/tools/image-squish.html): Browser-based batch image compressor and resizer supporting WebP, JPEG, and PNG via OffscreenCanvas with zero server uploads. - [Vidyard Saver](https://vibetools.au/tools/vidyard.html): Independent client-side helper to inspect Vidyard embed UUIDs and archive unrestricted MP4 videos you own or have permission to keep. ## Productivity - [Focus Timer](https://vibetools.au/tools/focus.html): Customizable Pomodoro timer with SVG progress ring, synthesized Web Audio brown noise and chimes, desktop notifications, and local session logging.