Tool voorstellen

Vertel ons welke tool je zou willen zien. We bouwen er elke week één op basis van echte verzoeken.

Snel eenheden omrekenen.

Converters

Wissel met één klik tussen eenheden, formaten en coderingen, allemaal in je browser.

52 tools beschikbaar

Salary ↔ Hourly Converter

Convert a yearly salary to an hourly rate (or the reverse).

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CSV ↔ JSON Converter

Convert between CSV and JSON instantly, in your browser.

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Base64 Encoder / Decoder

Encode and decode Base64 strings in your browser.

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Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes.

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Number to Words Converter

Convert any number into its English word form.

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Roman Numerals Converter

Convert to and from Roman numerals.

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Cooking Measurement Converter

Convert cups, oz, grams, ml, tbsp, and tsp with US and metric options.

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Color Picker from Image

Drop in an image and extract the dominant color palette as hex codes.

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Color Format Converter (HEX / RGB / HSL / CMYK)

Convert any color between HEX, RGB, HSL, and CMYK.

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Temperature Converter (°C / °F / K)

Convert between Celsius, Fahrenheit, and Kelvin — with common reference points.

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Unix Timestamp Converter

Convert Unix timestamps to human dates (and back) in your local time zone.

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Date Format Converter

Convert a date between ISO, US, EU, Unix, and Excel serial formats.

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Print DPI & Resolution Calculator

See how large you can print any image before it goes soft.

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Recipe Scaler (Bake / Cook)

Scale any recipe up or down to your target servings or yield.

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Cake Pan Size Converter

Convert any cake recipe from one pan shape/size to another.

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Dog-to-Human Age Converter

Convert a dog's age to human years with the modern size-adjusted formula.

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Cat-to-Human Age Converter

Convert a cat's age to its equivalent in human years.

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Image Format Converter

Convert PNG, JPG, and WebP images locally.

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Image Resizer

Resize an image to exact dimensions while preserving its ratio.

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Image Compressor

Shrink JPEG and WebP files with visual quality controls.

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Image Cropper

Center-crop images to square, landscape, portrait, or custom ratios.

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Image Rotator

Rotate an image by 90, 180, or 270 degrees.

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Image Flipper

Mirror an image horizontally or vertically.

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Image to Grayscale

Turn any photo or graphic into a grayscale image.

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Sepia Image Filter

Apply an adjustable warm vintage sepia effect.

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Image Blur Tool

Blur an image with an adjustable radius.

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Image Brightness & Contrast

Correct dark, washed-out, or flat images.

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Image Pixelator

Create a blocky pixel-art or mosaic effect.

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Transparent Background Flattener

Place transparent images on a solid background.

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Image Border & Padding Adder

Add colored padding or a clean border around an image.

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Image Watermark Tool

Add a text watermark with position and opacity controls.

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Social Media Image Resizer

Create exact-size images for posts, stories, thumbnails, and covers.

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Image to Data URI

Convert an image file to a copyable Base64 data URI.

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URL Encoder / Decoder

Encode or decode URL components safely.

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HTML Entity Encoder / Decoder

Escape or decode HTML entities without running the markup.

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JSON Lines Converter

Convert JSON arrays to JSONL and JSONL back to JSON.

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CSV to Markdown Table

Turn CSV data into a clean Markdown table.

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Chmod Calculator

Convert Linux file permissions between numeric and symbolic forms.

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Length Converter

Convert metric, imperial, nautical, and typographic lengths.

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Weight & Mass Converter

Convert grams, kilograms, pounds, ounces, stones, and tons.

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Data Size Converter

Convert decimal and binary bytes, KB, MB, GB, KiB, and GiB.

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Speed Converter

Convert mph, km/h, knots, m/s, and pace.

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Pressure Converter

Convert Pa, kPa, bar, psi, atm, and mmHg.

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Area Converter

Convert square units, acres, and hectares.

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Volume Converter

Convert liters, gallons, cubic units, cups, and fluid ounces.

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Energy Converter

Convert joules, calories, watt-hours, BTU, and therms.

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Power Converter

Convert watts, kilowatts, horsepower, and BTU/h.

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Angle Converter

Convert degrees, radians, gradians, turns, and arc units.

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Time Duration Converter

Convert nanoseconds through weeks and years.

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Fuel Economy Converter

Convert MPG, km/L, and L/100 km correctly.

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Kitchen Volume Converter

Convert cups, tbsp, tsp, fl oz, mL, liters for recipes.

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BIP-21 betalings-URI generator

Maak een bitcoin: URI met bedrag, label en bericht.

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