Free Online Tools
Use convenient tools instantly — no install needed
Length Converter
Convert between cm, m, km, inch, ft, mile and more.
Weight Converter
Convert between kg, g, lb, oz, ton and more.
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin.
Speed Converter
Convert between km/h, m/s, mph, knot and more.
Area Converter
Convert between m², km², ft², acre, hectare and more.
Volume Converter
Convert between L, mL, gallon, cc and more.
Data Unit Converter
Convert between B, KB, MB, GB, TB and more.
HEX to RGB Converter
Convert between HEX color codes and RGB values.
Color Palette Generator
Generate harmonious color palettes automatically.
Gradient Generator
Generate CSS gradient code with live preview.
Color Picker
Pick a color and get HEX, RGB, HSL values.
Case Converter
Convert text case: UPPER, lower, Title, camelCase and more.
Text Diff
Find differences between two texts. Line-by-line comparison.
Duplicate Line Remover
Remove duplicate lines from text.
Base64 Encoder / Decoder
Encode and decode text to/from Base64.
URL Encoder / Decoder
Encode and decode URLs. Percent-encoding converter.
JSON Formatter
Beautify or minify JSON data with validation.
Image Resizer
Resize images to any size. No upload needed.
Image Compressor
Compress images to reduce file size. Adjustable quality.
Image Format Converter
Convert between PNG, JPG, WebP and other formats.
Image Cropper
Crop images to any area. Aspect ratio presets available.
Password Generator
Generate secure random passwords with custom options.
Character Counter
Count characters, bytes, words, and sentences in real-time.
QR Code Generator
Convert text or URL to QR code. Instant download.
Percentage Calculator
Calculate percentages, ratios, and percent changes.
BMI Calculator
Calculate BMI from height and weight. WHO standards.
D-Day Calculator
Calculate days remaining or elapsed from a target date.
Date Calculator
Add or subtract days from a date, or find the gap between two dates.
Due Date Calculator
Calculate estimated due date and pregnancy weeks from last period.
Calorie Calculator
Calculate BMR and daily calorie needs (TDEE).
Loan Interest Calculator
Calculate loan interest with equal principal, equal payment, or bullet repayment.