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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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
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