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🎨Online media & color tools

This category gathers media and color tools for designers and developers: image processing, CSS gradient and shadow generators, color palettes and contrast checker. Create accessible visuals and CSS, free and without uploading your images.

Aspect Ratio Calculator 16:9 and Dimensions

Calculate an aspect ratio (16:9…) and derive a missing proportional dimension.

Barcode Generator: EAN-13, Code128, UPC

Generate a barcode (EAN-13, Code128, UPC) from a value, downloadable, in your browser.

Base64 to Image Decoder Online, Download the File

Decode a data URI or Base64 into a viewable, downloadable image, in your browser.

CSS border-radius generator

Create CSS rounded corners (border-radius) with a live preview and copy-ready code.

CSS box-shadow generator

Generate a CSS box-shadow with a live preview and copy-ready code.

Chroma Key Remover: Erase Green Screen Background

Make a background color (green/blue screen) transparent and export a PNG, in your browser.

Color converter

Convert a color between HEX, RGB and HSL, with a live preview.

Pick a pixel color from an image (color picker)

Pick a pixel’s color by clicking directly on an imported image (HEX, RGB), in your browser.

Color palette generator

Generate a scale of shades and tints from a single base color.

Extract a Color Palette From an Image

Extract the dominant colors from an imported image to build a palette, in your browser.

WCAG contrast checker

Check the contrast ratio between two colors and WCAG AA / AAA compliance.

CSS clamp() generator for fluid typography

Generate a fluid CSS clamp() value (responsive typography) between two viewport sizes.

CSS gradient generator

Build a CSS gradient (linear or radial) with a live preview and ready-to-copy code.

CSS @keyframes Animation Generator with Preview

Generate a CSS @keyframes animation (fade, slide, bounce…) with preview and code.

Custom CSS Scrollbar Generator

Customize a CSS scrollbar (width, colors, radius) and get the code.

Animated CSS Spinner and Loader Generator

Generate an animated CSS spinner / loader (size, color, speed) with a preview.

CSS Triangle Generator with Borders

Generate a CSS triangle (border trick) with direction, size and color.

CSS Unit Converter px rem em pt

Convert CSS units (px, rem, em, pt) with a configurable base.

Generate a Favicon From an Emoji (PNG/ICO)

Generate a PNG favicon from an emoji, in multiple sizes, right in your browser.

View EXIF metadata of a photo (GPS, date, camera)

View a photo’s EXIF metadata (camera, date, GPS) without uploading it.

Favicon Generator: Create a Favicon from an Image

Generate a favicon (16/32/48/180 px PNG) from an imported image, in your browser.

GIF Frame Extractor to Download PNG Images

Split an animated GIF into downloadable PNG frames, right in your browser.

CSS Glassmorphism Generator (Frosted Glass Effect)

Generate a CSS glassmorphism (frosted glass) effect with preview and copy-ready code.

Blur an Image Online (Adjustable Radius)

Apply a blur to an image (adjustable radius) and download the result, in your browser.

Add a Border to an Image Online Free

Frame an image with a border of chosen color and thickness, downloadable, in your browser.

Adjust Image Brightness and Contrast Online

Adjust an image’s brightness and contrast and download the result, in your browser.

Compress image

Compress an image (JPG/WebP, quality slider) to reduce its size, with no upload.

Image converter

Convert an image between PNG, JPG and WebP right in your browser, with no upload.

Crop image

Crop an image by drawing the area directly with your mouse, then download.

Image Dithering Tool for Retro Pixel Effects

Apply dithering (Floyd-Steinberg, retro effect) to an image, in your browser.

Convert Image to Grayscale Online (Free)

Convert an image to grayscale (black and white) and download it, in your browser.

Invert Image Colors (Negative) Online

Invert an image’s colors (negative) and download the result, in your browser.

Add Grain or Noise to an Image Online

Add grain/noise to an image (film effect) and download the result, in your browser.

Pixelate an Image Online (Adjustable Pixel Size)

Pixelate an image (adjustable pixel size) and download the result, in your browser.

Posterize Image Online: Reduce Color Count

Reduce an image’s number of colors (posterize) and download the result, in your browser.

Resize image

Resize an image (width/height, keep ratio) with no upload, then download.

Rotate and flip image

Rotate (90/180/270°) and flip (mirror) an image, then download, with no upload.

Round Image Corners Online (Transparent PNG)

Round an image’s corners (adjustable radius) and export a transparent PNG, in your browser.

Apply Sepia Filter to Image Online (Free)

Apply a sepia filter (vintage effect) to an image and download it, in your browser.

Sharpen Image Online: Enhance Photo Clarity

Sharpen an image (convolution) and download the result, in your browser.

Convert an Image to ASCII Art Online

Convert an image into ASCII art (characters based on brightness), right in your browser.

Image to Base64 converter

Convert an image (PNG, JPG, GIF, WebP) into a Base64 / data URI string, with no upload.

Convert Image to ICO File Online, Windows Favicon

Convert an image into a multi-size .ico file (Windows favicon), right in your browser.

Add a Text Watermark to an Image Online

Add a text watermark to an image (adjustable position and opacity), downloadable, in your browser.

QR Code Generator Online

Generate a QR code from text, a URL or a link, and download it.

CSS text-shadow Generator with Preview

Generate a CSS text-shadow with a live preview and copy-ready code.

Convert Text to PNG Image Online

Turn text into a downloadable PNG image (font, colors, background), in your browser.

Text to Speech Online: Read Text Aloud Free

Read text aloud using your browser’s speech synthesis (FR/EN, voice selection).

Frequently asked questions

How do I check color contrast?

The contrast checker computes the ratio between two colors and tells you whether it meets WCAG AA and AAA accessibility criteria.

Are my images uploaded to a server?

No. Image processing happens locally in your browser: your files stay private and are never sent online.