Image & Media

Pure in-browser image format transcoding, HEIC to JPG, color conversions, and QR codes.

Available Tools (55)

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Conversion & Compression

Color Systems & Design

HEX to RGB & HSL Converter

Convert HEX, RGB and HSL, adjust Alpha, copy CSS codes and check WCAG text contrast on white and black.

Sampled Image RGB Palette

Sample decoded image pixels into coarse RGB buckets and return up to eight frequent buckets; no median-cut or perceptual ranking.

Color Contrast Ratio Checker

Enter foreground and background HEX colors. Compute sRGB relative luminance and contrast ratio. Return ratio plus AA/AAA threshold booleans.

HEX Color-Vision Approximation

Apply fixed approximate RGB transforms to one HEX color and return three transformed HEX values; no image input or clinical simulation.

RGB to Formula-Based CMYK

Convert supplied RGB numbers to a simple rounded CMYK estimate; no ICC printer profile or print-proof conversion.

HEX Match Against a 5-Color Sample Palette

Find the nearest squared-RGB match among five bundled Pantone-named samples; not a complete library or print proof.

Four-Corner CSS Border Radius

Adjust eight independent percentage radii to preview an organic shape and generate border-radius CSS with separate horizontal and vertical axes. Choose droplet, pebble or bubble presets and optional motion. The optional JSON workspace still returns four pixel radii.

PX and REM Converter

Batch-convert CSS px and rem dimensions in either direction with a custom root font size and 0–8 decimal places. Preserve strings, comments and URLs. A separate JSON calculator converts one numeric value.

Image srcset Text Generator

Generate a complete responsive img element from existing image URLs and widths, a sizes attribute, intrinsic dimensions and alternative text. Choose lazy loading or eager loading with high priority; decoding is async.

HSL Color Palette Harmonizer

Generate five-color HSL palettes in analogous, complementary, split-complementary or triadic modes. Preview button and background colors, then download the CSS variables.

HEX Color Alpha Byte Appender

Enter a three- or six-digit HEX color and adjust opacity from 0% to 100% with a slider. Read #RRGGBBAA, CSS rgba(), and a complete 101-row alpha-byte table. An optional JSON workspace retains numeric alpha conversion.

Interactive CSS Mesh Gradient Generator

Arrange four to six radial color spots with drag, keyboard or numeric controls. Adjust color, position, fade radius and backdrop blur, preview responsively and copy the CSS.

Screenshot Mockup PNG Generator

Upload a screenshot, add a light or dark window or simple phone frame, adjust padding, corners, shadow and background, then save a PNG at 1× or 2×.

Image Pixel Color Picker and Magnifier

Select any pixel in a local image, inspect an 11×11 grid at up to 20× zoom and copy HEX, RGB or HSL; use the native screen picker when available.

Transparent PNG, WebP and SVG Background Checker

Inspect PNG, WebP and SVG transparency against black, white, checkerboard and pink backgrounds; zoom in to examine translucent edges.

Filters, QR & Privacy

QR Code Generator

Create QR codes from text, URLs, WiFi settings or vCard contacts. Choose L/M/Q/H correction and download PNG or SVG.

JPEG Metadata Stripper by Re-encoding

JPEG Metadata Stripper by Re-encoding: Decodes raw pixel buffer and re-encodes pure JPEG bitmap without copying EXIF, IPTC, or XMP metadata segments.

Bottom-Right Text Watermark

Add fixed semi-transparent white text near the bottom-right of one image and export a flattened PNG; no shadow or movable layer.

Image Grayscale Filter

Select a browser-decodable image. Draw it with the browser Canvas grayscale(1) filter. Export the Canvas as PNG.

QR Code Image Scanner

Decode a QR code from a selected image with jsQR and return its text; no camera or one-dimensional barcode scanner.

Code 128 Barcode Generator

Generate a Code 128 barcode PNG from printable text using bwip-js; this is not a QR code.

Image Dithering

Convert images to black-and-white PNG with Floyd–Steinberg, Atkinson or Bayer 4×4 dithering.

Regional Image Privacy Editor

Draw rectangles or brush strokes to cover, pixelate or blur selected image regions, adjust size, undo edits and export a PNG.

Image Overlay and Pixel Difference Comparator

Compare equal-size images with adjustable onion opacity, a draggable vertical wipe and red pixel differences; download the current PNG view.

Image Invert & Negative Filter

Draw a decoded image through the browser Canvas invert(1) filter and export a new PNG. Exact color and alpha behavior depends on the browser filter implementation.

Live Image Brightness, Contrast and Histogram

Adjust brightness and contrast with a live preview, before/after luminance histograms and optional range stretch to avoid channel clipping.

Image Hue and Saturation Adjuster

Rotate local image hue through 0–360° and set saturation from 0–300%; apply Canvas filters and download the resulting PNG.

Duotone Gradient Map

Map image brightness between two colors, choose from 24 duotone palettes, and download a full-size PNG.

Tool category

Image Resizer

Resizes a browser-decodable image to the selected width and height through canvas. The dimensions are independent; aspect ratio is not automatically preserved.

Center Crop to Exact Size

Center Crop to Exact Size: Calculates centered bounding box coordinates (x: 560, y: 140, w: 800, h: 800) and extracts sub-canvas.

32×32 ICO Favicon Generator

Creates a single 32×32 ICO entry containing a PNG image. It does not package 16×16 and 48×48 variants.

Rotate Image 90° Clockwise

Rotate one decoded image 90° clockwise and export PNG with swapped dimensions; no flip or arbitrary angle.

Image Grid Slicer (9-Grid / Splitter)

Split one image into a fixed 3×3 grid and offer nine separate PNG tiles; edge tiles may have transparent padding, no ZIP.

Social Image Preset Resizer

Center-crop one image to a selected social-media pixel preset and export PNG; cropped edge content is discarded.

Aspect Ratio Simplifier

Calculate a missing width or height from a known dimension and a preset or custom aspect ratio. Read fractional pixel dimensions and CSS aspect-ratio. The optional JSON workspace still simplifies an existing width-to-height ratio using GCD.

Pixel and DPI Print-Size Calculator

Compare pixel requirements for 4R / 6-inch (4 × 6 in), 7-inch (5 × 7 in), A3, A4 and A5 paper at your target DPI. Dimensions round up to whole pixels. The JSON calculator also converts pixel dimensions to inches and centimeters.

iOS and Android App Icon Package Generator

Create an iOS AppIcon.appiconset with18 PNG slots and Contents.json, plus Android launcher, round and adaptive icon resources in five density folders.

Multi-image Stitcher and Long Screenshot Combiner

Combine 2–20 local images vertically or horizontally, reorder them, adjust gaps and borders, equalize width or height and save one PNG.

Image Shape Mask and Rounded Corners

Apply a circle, heart, hexagon or adjustable rounded rectangle to a local image and download a PNG with transparent outer areas.

Tool category