All Free Online Tools
18 free tools — all run in your browser.
Browse every tool on UtilDaily — a growing collection of free, browser-based utilities for developers, designers, and everyday users. Every tool runs entirely client-side, meaning your data is processed locally and never sent to any server. Use the search box or category filters below to find the right tool instantly.
All 18 Tools
JSON Formatter
Format, validate, and minify JSON data instantly.
Base64 Encoder / Decoder
Encode text or files to Base64, or decode Base64 back to plain text.
UUID Generator
Generate random UUIDs (v4) in bulk with one click.
URL Encoder / Decoder
Encode or decode URL components and query strings.
JSON to CSV Converter
Convert JSON arrays to CSV format with one click. Supports nested objects.
Random Wheel Spinner
Spin the wheel to randomly pick from your list. Perfect for decisions and games.
CSV to JSON Converter
Convert CSV files or pasted data to JSON arrays. Auto-detects headers and types.
Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa. Supports UTC and local time.
Random Number & Dice
Generate random numbers, flip a coin, or roll dice — all in one place.
Random List Picker
Paste a list of items and pick random winners instantly. Perfect for raffles and giveaways.
Hash Generator
Generate MD5, SHA-1, and SHA-256 hashes from any text using your browser's built-in crypto.
Nickname Generator
Generate fun nicknames, gamer tags, and fantasy names instantly.
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and back. Auto-detects seconds vs milliseconds.
Cron Expression Generator
Build cron schedule strings visually and get a plain-English explanation of when they run.
Age Calculator
Calculate your exact age in years, months, and days — plus total seconds lived for fun.
Work Day Calculator
Add working days to a start date (skipping weekends) to find a project deadline.
Life Progress Bar
Visualize how much of this year — and your life — has already passed with animated progress bars.
Pomodoro Timer
Browser-based 25/5 Pomodoro timer that shows the countdown in the browser tab title.