Free Online Converters

Various Free Converter Tools - Image, Unit, Currency, Timezone

Free online converters you can use instantly. Supports file, unit, and data conversions.

📁File Conversion

🖼️

Image ConverterPopular

Convert PNG, JPG, WEBP image formats

Background RemoverPopular

Remove background and keep transparency

DPI

Image DPI Upscaler

Set DPI metadata and upscale resolution

📊Data/Text

🔐

Base64 Encoder/DecoderPopular

Text ↔ Base64 encoding/decoding

🔗

URL Encoder/Decoder

URL percent encoding/decoding

📊

JSON ↔ CSV ConverterPopular

Convert between JSON and CSV

📝

Markdown ↔ HTML

Convert between Markdown and HTML

📐Unit Conversion

📐

Unit Converter

Convert various physical units

📏

Length ConverterPopular

10 units: meters, feet, inches, etc.

⚖️

Weight Converter

10 units: kg, lb, oz, etc.

🌡️

Temperature Converter

Convert Celsius, Fahrenheit, Kelvin

💾

Data Size Converter

Convert KB, MB, GB, TB data sizes

🏠

Area ConverterPopular

Convert ㎡, pyeong, acre, etc.

🏎️

Speed Converter

Convert km/h, mph, m/s, knots, Mach

⏰Time/Currency

💱

Currency ConverterPopular

Exchange rates for 15 major currencies

🌐

Timezone ConverterPopular

Convert between 18 major city timezones

📅

Date Format Converter

Convert ISO 8601, Unix Timestamp, etc.