Free Online Converters

A hosted suite of browser converters — change text case, convert between units of measurement, translate colors across HEX, RGB and HSL, and convert 160+ currencies with live exchange rates. No installs, no sign-up, results as you type.

Free

Case Converter

Convert text to UPPERCASE, lowercase, Title Case, Sentence case or tOGGLE cASE — with live character, word and line counts and one-click copy.

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Unit Converter

Convert length, weight, temperature, volume and speed between metric and imperial units in real time, with a swap button and exact conversion factors.

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Color Converter

Convert a color between HEX, RGB and HSL with a live preview swatch and a native color picker. Edit any format and the others update instantly.

Open tool Free

Currency Converter

Convert between 160+ world currencies with live mid-market exchange rates, updated daily. Pick two currencies, type an amount, and swap.

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How Converters Works

Four focused tools, one consistent interface. Pick a converter, enter a value, and read the result instantly.

1

Pick a converter

Choose the Case Converter for text, the Unit Converter for measurements, the Color Converter for design values, or the Currency Converter for live exchange rates. Each one is a single page with one job.

2

Enter a value

Type or paste your text, number, or color. Conversion happens live as you type — there is no convert button to wait on, and nothing is sent to a server.

3

Copy the result

Copy the converted output to your clipboard with one tap. Everything runs in your browser, so the tools stay fast and private and keep working offline once loaded.

Frequently Asked Questions

What are the LK Forge Converters?
Converters is a free suite of browser-based conversion tools hosted on LK Forge. It currently includes a Case Converter that changes text between UPPERCASE, lowercase, Title Case, Sentence case and tOGGLE cASE, a Unit Converter that handles length, weight, temperature, volume and speed with a swap button and live results, a Color Converter that converts a color between HEX, RGB and HSL with a live preview swatch, and a Currency Converter that converts between 160+ world currencies using live mid-market exchange rates updated daily. The conversions run in your browser — nothing you type is uploaded or stored, and there is no sign-up. The case, unit and color tools work fully offline; the currency converter only downloads the public exchange-rate table.
Are the converters free and private?
Yes. Every tool in the suite is completely free with no account, no payment, and no usage cap. Because all of the conversion math runs client-side in JavaScript, the text, numbers, and colors you enter never leave your device — there are no server round-trips and nothing is logged. That makes the tools safe to use for sensitive text and fast enough to update on every keystroke, even offline once the page has loaded.
Do I need to install anything?
No. There is nothing to download and no extension to add. The converters work in any modern browser on desktop, tablet or mobile. Open a tool, paste or type a value, and read the result — they are a quick, hosted alternative to spreadsheet formulas, command-line scripts, or design-app color pickers when you just need a fast one-off conversion.
How accurate are the unit and color conversions?
Unit conversions use exact internationally defined factors — for example one inch is exactly 0.0254 meters and one pound is exactly 0.45359237 kilograms — and results are shown to eight significant figures, then trimmed of trailing zeros. Temperature uses the precise Celsius, Fahrenheit and Kelvin formulas rather than approximations. Color conversions use the standard sRGB and HSL math, so a value round-trips cleanly between HEX, RGB and HSL.