Your All-in-One Conversion Toolkit

Metric Converter is a free, open-source conversion toolkit that runs entirely in your browser — your files never leave your device.

• 93 published file conversion tools

• 1162 selected unit conversion pairs

• No account or watermark

• File processing stays in the browser

How It Works

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1. Choose Your Conversion

93 File Converters · 1162 Unit Converters

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2. Convert Instantly

Conversions run in your browser with JavaScript, browser APIs, and WebAssembly where required. Processing time and download requirements depend on the file type and device.

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3. Download or Copy

Download your converted file or copy the unit result. All data stays on your device and is deleted when you close the tab.

File Converters

.jpg → .png

JPEG Image to Portable Network Graphics

.jpg → .webp

JPEG Image to WebP Image

.jpg → .pdf

JPEG Image to Portable Document Format

.png → .jpg

Portable Network Graphics to JPEG Image

.png → .webp

Portable Network Graphics to WebP Image

.png → .pdf

Portable Network Graphics to Portable Document Format

.webp → .jpg

WebP Image to JPEG Image

.webp → .png

WebP Image to Portable Network Graphics

View all file converters →

Unit Converters

Meter → Foot

Foot → Meter

Centimeter → Inch

Inch → Centimeter

Kilometer → Mile

Mile → Kilometer

Millimeter → Inch

Inch → Millimeter

All Unit Categories

Frequently Asked Questions

What is Metric Converter?

Metric Converter is a free online toolkit for file format conversions (JPG, PNG, WebP, GIF, etc.) and unit conversions (length, mass, temperature, and more). It runs entirely in your browser with no server uploads required.

Is my file data safe?

Yes. All file processing happens locally in your browser using client-side JavaScript and WebAssembly. Your files are never uploaded to any server. Once you close the tab, all data is gone.

What conversions are supported?

The current registry contains 188 units across 15 categories.

Do I need to pay?

No payment or account is required. The site is supported by advertising.

Can I use it offline?

An internet connection is recommended. Some previously loaded resources may be cached, but full offline support is not guaranteed for every converter.

Unit Converter Online — cm↔in, kg↔lb, m²↔ft²