Your free online tool kit

Convert. Generate. Check. 100+ utilities to make your life easier.

Free, privacy-friendly web tools: converters, generators, calculators and more. No signup required. Use them anytime, right in your browser.

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All tools

Network

Speed Test

Measure download, upload, ping & jitter

HTTP Headers

Check headers & status for any URL

SSL Checker

Certificate validity & expiry

DNS Lookup

A, AAAA, MX, TXT, NS records

IP Info

Your IP & geolocation

Subnet Calculator

CIDR, network, broadcast, hosts

WiFi dBm Explainer

Signal strength explained with visualization

Port Reference

Common ports 22, 80, 443, 3306…

Images, PDF & Design

Image Resize

Resize & convert PNG, JPG, WebP

Favicon Generator

Generate favicon pack from one image

Palette from Image

Extract colors from photos

Gradient Generator

CSS linear, radial, conic

Box Shadow Generator

CSS box-shadow with sliders

Border Radius Generator

CSS border-radius preview

Color Picker

HEX, harmony, contrast, CVD preview

Random Color

Generate random HEX/RGB/HSL colors

Image Compress

Reduce file size with quality slider

PDF Tools

Merge, split & PDF to image

Font Library

Browse Google Fonts, copy embed code

Font Awesome Guide

CDN, npm, usage examples

CSS Cursors

All cursor values with live preview

Calculators

Standard Calculator

Basic arithmetic

Geometry Calculator

Area, perimeter, volume

Timestamp

Unix ↔ date converter

Age Calculator

Birth date to exact age

Date Difference

Days between two dates

Day of Week

What day was this date?

Week Number

What week number is this date?

Planet Distance

Distance between planets in km/miles/AU

Percentage Calculator

X% of Y, add/subtract %

Unit Price Calculator

Compare prices per unit

Tip Calculator

Bill + tip %, split between people

Compound Interest

Principal, rate, years → future value

Loan / EMI Calculator

Monthly payment from principal, rate, term

Countdown Timer

Pick date/time, see live countdown

Business

Job Cost Calculator

Materials, labor, machines, write-offs → total cost

Margin vs Markup

Convert margin/markup, set prices

Break-Even Calculator

Fixed costs, variable cost, price → break-even

ROI Calculator

Investment vs return → ROI %

Billable Hour Rate

Target income + overhead → hourly rate

CAC / LTV Calculator

Customer acquisition cost & lifetime value

Converters

Timezone Converter

Convert time between timezones

Currency Converter

Convert with live exchange rates

Crypto Converter

Bitcoin, Ethereum & more to EUR/USD

Length

m, km, miles, feet, inches

Temperature

°C, °F, Kelvin

Angle Converter

Degrees, radians, gradians

Pressure

bar, psi, kPa, atm

Speed

km/h, mph, m/s, knots

Volume

liters, gallons, cups, m³

Data Size

bytes, KB, MB, GB, KiB, MiB

Base64

Encode & decode Base64

URL Encode

Encode & decode URL parameters

Number Base

Decimal, binary, hex, octal

Roman Numerals

42 ↔ XLII

Text & Writing

Lorem Ipsum

Generate placeholder text

Case Converter

Convert text case (lower, upper, title)

Character Counter

Count characters, words & lines

Markdown Preview

Live Markdown to HTML

Diff Checker

Compare two texts

List Tools

Sort, randomize, remove duplicates

Morse Code

Encode and decode Morse code

Generators

Password Generator

Generate secure random passwords

Password Strength

Check password strength in real time

Hashtags Generator

Instagram, TikTok, Twitter hashtags

UUID Generator

Generate UUID v4

QR Code

Generate QR codes from text or URLs

Barcode

Code 128 barcode generator

Random String

Generate random alphanumeric strings

Random Number

Random integers in a range

Slug Generator

Convert text to URL-friendly slugs

Fake Data

Generate fake names, emails, addresses

Developer

Meta Tags Generator

Open Graph & Twitter Card meta tags

JSON Formatter

Format, validate & minify JSON

MCP JSON Generator

Build MCP config for Cursor

.env Formatter

Format & validate .env files

API Schema Validator

Validate OpenAI/Anthropic schemas

CSV ↔ JSON

Convert between CSV and JSON

JSON to Base64 CSV

JSON → CSV → Base64

YAML to CSV

Convert YAML to CSV

Entities to JSON

Decode HTML entities, format JSON

YAML ↔ JSON

Convert between formats

SQL Formatter

Format & minify SQL

XML Formatter

Format & validate XML

Cron Generator

Build cron expressions visually

API Mock Generator

Generate fake REST/JSON from schema

CSS Formatter

Format or minify CSS

HTML Formatter

Pretty-print HTML

HTML Entities

Encode/decode HTML entities

Escape/Unescape

Escape for JSON, HTML, URL

Hash Generator

MD5, SHA-1, SHA-256 hashes

JWT Decoder

Decode JWT tokens

Regex Tester

Test regular expressions

URL Parser

Parse URL components

User Agent Parser

Parse browser/OS from UA

Cron Explainer

Explain cron expressions

Semver Compare

Compare version numbers

Unicode Lookup

Char ↔ code point