All the converters you need, in one fast, clean toolkit.

A Free Online Converter for Every Everyday Task

Need to convert something quickly? ConvertGrove is a fast, distraction-free toolkit that handles the small conversions people run into every day, from unit conversion and Base64 encoding to timestamp math and color codes. Instead of hunting across five different single-purpose sites, you get one consistent, clean interface — dark by default, light if you prefer it. Every tool below updates as you type, so you convert once and read the result immediately, with nothing interrupting the actual conversion and no server round-trip slowing it down.

A Unit Converter That Covers the Whole Toolbox

The Smart Unit Converter covers fourteen categories — length, weight, area, temperature, speed, volume, pressure, energy, digital storage, angle, time, density, power, and torque — switchable with one click instead of hunting down a separate calculator for each. It's built for the moment you're mid-task and just need an answer: converting a recipe from grams to cups, checking whether a shipment is under a weight limit in kilograms or pounds, sizing a room in square feet versus square meters, or converting a torque spec for a wrench that's marked in different units than the manual. Every category uses the internationally defined exact constant for that unit pair rather than a rounded approximation, so results stay accurate even after converting a value more than once in a row.

Base64 Encoder and Decoder

The Base64 Encoder/Decoder handles both text and files: drag a file in, paste text, or type directly, and it encodes or decodes instantly. It's the tool you reach for when debugging an API payload, embedding a small image as a data URI, or decoding a token — there's no upload step, because the encoding happens entirely in your browser.

Binary, Octal, Decimal & Hex Converter

The Base Converter handles the other kind of "base" conversion — numbers, not text. Type a value in binary, octal, decimal, or hexadecimal and see it converted into the other three instantly, with BigInt precision so arbitrarily large integers stay exact instead of silently losing digits. It's a quick way to check a hex color value, a bitmask, or a memory address without opening a calculator app.

Epoch Time Converter and Timezone Tool

The Timezone & Epoch Converter does two things: convert a date and time from one timezone to another — say 3 PM in Mumbai to what that is in Chicago — and convert between a Unix timestamp and a local date and time in either direction. Both handle daylight saving time correctly, including flagging clock times that don't exist because of a spring-forward gap. A live world clock and your pinned zones sit below the converter for a glance at several timezones at once, useful if you work with logs, cron schedules, or APIs that return raw epoch values instead of formatted dates.

Color Harmonizer

The Color Harmonizer converts colors between HEX, RGB, HSL, and CMYK with a live swatch so you can see the result as you adjust it. It's aimed at designers and developers who need to move a color between a design tool, CSS, and a print spec without doing the math by hand.

Built for Speed

Every converter on ConvertGrove runs client-side: your text, files, and numbers are processed in your browser and never uploaded anywhere, and each tool is lazy-loaded so you only download the code for the page you're on. That's what makes convert-as-you-type possible everywhere on the site, from the unit converter to the color harmonizer. Bookmark the tool you use most, or start from the list above and pick whichever converter matches what you need to get done right now.