Captura Web Recorder
Record your screen with webcam overlay and microphone audio — streams directly to disk. Runs entirely in your browser, no data sent to any server.
PDF Password Tool
Add or remove passwords from PDF files entirely in your browser — powered by QPDF WebAssembly. Your files never leave your device.
Bookmarklet Compiler
Minify and compile raw JavaScript into a drag-and-drop bookmarklet — strips comments, compresses whitespace, and URI-encodes for the browser.
YouTube Thumbnail Grabber
Instantly fetch the full-resolution thumbnail of any YouTube video — paste any YouTube URL or video ID and download the raw JPG.
Image Compressor
Compress and convert images to JPEG, PNG, or WebP entirely in your browser — powered by ImageMagick WebAssembly.
Video & Audio Converter
Convert video and audio files between MP4, WebM, MKV, MOV, MP3, WAV, OGG, FLAC and more — runs entirely in your browser using the WebCodecs API. No uploads, no server.
Timestamp Converter
Convert between Unix epoch and human-readable timestamps.
Base64 Encoder / Decoder
Encode plain text to Base64 or decode Base64 back to text.
SIP Calculator
Calculate SIP growth with step-up, inflation adjustment, and year-wise projection.
JSON Formatter & Validator
Format, minify, and validate JSON documents.
URL Encoder / Decoder
Percent-encode plain text for safe use in URLs, or decode URL-encoded strings back to readable text.
Amazon Ion Formatter
Format, minify, and convert Amazon Ion documents to JSON — entirely in your browser.
CRON Expression Generator
Build CRON expressions from frequency dropdowns — minute, hour, day, week, or month.
Hash Generator
Generate MD5, SHA-1, and SHA-256 hashes from any input text.
Smart Scratchpad
Distraction-free notepad that auto-saves every keystroke. Instantly strips formatting from pasted text.
QR Code Generator
Generate a downloadable QR code for any text or URL directly in your browser.
Metronome / BPM Tapper
Keep tempo with adjustable BPM, time signature controls, and tap tempo detection.
Color Palette Generator
Upload an image and extract prominent hex color codes instantly in your browser.
Guitar & Chromatic Tuner
Real-time in-browser tuner for guitar and any instrument using your microphone and the Web Audio API.