71 tools live · 8 languages
Every tool you need,
in your browser.
Free browser-based utilities for developers, designers, and everyone else. Calculators, converters, generators — all running on your device.
Latest tools
JWT decoder
Inspect any JSON Web Token entirely in your browser. See header, payload, signature, and humanised claims. Tokens are never uploaded, logged, or saved.
Timestamp converter
Convert Unix timestamps to human dates and back. ISO 8601, UTC, local, and relative formats. Auto-detects seconds vs milliseconds. All formatting via Intl APIs.
Pomodoro timer
Focus timer using the Pomodoro technique. 25-min work, 5-min breaks, long break after 4 cycles. Tracks completed sessions. Free.
Slug generator
Convert any text into a clean, URL-safe slug. Choose hyphen, underscore, dot, or none; control case; transliterate diacritics. Live update, runs locally.
YouTube Embed Code Generator
Paste any YouTube URL or video ID and generate a customizable iframe embed code. Toggle autoplay, loop, controls, set start/end times, custom dimensions, and privacy mode. Live preview, copy-ready code, no upload, no signup.
Mortgage calculator
Calculate monthly mortgage payments, total interest, and a full amortization schedule. Optional property tax and insurance for PITI totals.
Ready to explore?
Browse our complete collection of 71 free tools across 15 categories
View all tools →