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Enter a resolution to get its simplified aspect ratio, or start from a ratio and one side to get the missing dimension. Knows the common ratios like 16:9, 4:3 and 21:9 and shows how close your size is to each.

Create barcodes in dozens of formats, from EAN-13, UPC-A and Code 128 to QR Code, Data Matrix and PDF417. Type the content, tune the size, colors and text options, and download the result as PNG or SVG.

See any image the way people with a color vision deficiency see it. Upload a picture and preview protanopia, deuteranopia, tritanopia, the milder anomalous forms and monochromacy next to the original, then download any simulation as a full resolution PNG.

Pull the dominant colors out of any image as a ready-to-copy palette. Choose how many colors you want, copy each one as HEX, RGB or HSL, and export the whole palette at once.

See and edit the EXIF metadata inside a photo, then download it with your changes or save a copy with all metadata removed, GPS included. It reads JPEG, PNG, HEIC and more, and edits JPEG files.

Copy the EXIF metadata from one photo onto another without changing the destination's pixels. That covers camera model, lens, focal length, exposure, GPS and more. Choose to replace all metadata or only fill in what the source provides.

Turn any image into a complete favicon set: a multi-size favicon.ico, PNG icons in every common size, Apple touch and Android icons, a web manifest and the HTML tags to paste into your page. Download everything as a zip.

Turn a series of images into a video. Drop in your frames, reorder them, set the frame rate and resolution, and encode the result as MP4 or WebM, ready to play anywhere.

Convert an animated GIF into an MP4 or WebM video. Videos are far smaller than GIFs and play everywhere, so this is the quickest way to make a heavy GIF shareable.

Draw arrows, boxes, text, highlights and numbered steps on a screenshot, blur or pixelate anything private, crop the result and add a watermark. The finished image downloads as PNG or JPG or goes straight to your clipboard.

Convert images between JPEG, PNG, WebP and AVIF. Drop in as many as you like, pick a format, and dial in the quality for the lossy ones. When you convert to JPEG, choose the colour that fills any transparency. Live previews, download one or all at once.

Crop any image with rule of thirds, golden ratio and golden spiral overlays, rotate or flip it, snap to preset aspect ratios or set your own, then resize the result to exact pixel dimensions and export it as PNG or JPEG.

Compare two images and see exactly what changed. Slide between them horizontally or vertically, blink or blend them over each other, view them side by side, and let the pixel diff highlight every changed region with a difference percentage.

See the RGB and luminance histograms of any image, with per-channel toggles, a linear or logarithmic scale, and exposure stats such as clipped shadows and highlights.

Convert images into data URIs you can paste straight into CSS or HTML. Shows the encoded size next to the original, wraps the result as a CSS background or img tag if you want, and handles whole batches at once. Also decodes a pasted data URI back into a file.

Read the text out of a screenshot, photo or scan with OCR. Pick the language, watch the recognition progress, review the result with per-word confidence, and copy or download the extracted text.

Turn photos and images into a single PDF. Drop in JPEG, PNG or WebP files, reorder them, pick the page size, orientation and margins, and choose whether each image fills the page or keeps its own size.

Shrink any image with as little quality loss as possible. Pick a WhatsApp, Instagram or Discord preset, or switch to Custom to hit a hard file size or a fixed quality, downscale with aspect-locked resolution sliders, and keep or strip EXIF metadata. Live preview, multiple images at once.

Render every page of a PDF as an image. Choose PNG or JPEG, set the resolution, pick single pages or a range, then download pages one by one or all at once as a zip.

Convert between pixels and print size at any DPI. Enter an image's pixel dimensions to see how large it prints in cm or inches, or start from a print size and DPI to get the pixels you need. Knows the DIN A series from A0 to A10 and tells you whether your image is sharp enough for each.

Create a QR code for text, a link, an email, a phone number, an SMS, Wi-Fi access or a contact card. Set the error correction level, size, margin and colors, then download it as PNG or SVG or copy it straight to the clipboard.

Read a QR code from an image or your camera. Drop in a screenshot or photo and the decoded content appears instantly, with links, Wi-Fi credentials, contact cards and other payload types recognized and broken down. Live camera scanning works right in the page.

Shrink an SVG with SVGO. Paste the markup or drop a file, toggle every optimizer plugin individually, set the numeric precision and multipass, and compare the size before and after. Copy the result or download it as a file.

Extract still frames from a video. Grab every frame, every Nth one or one per second, or step through and pick single frames by hand. Choose PNG, JPEG or WebP for the output and download everything as a zip.

Turn a video clip into an animated GIF. Pick the exact section on a timeline, set the frame rate, size and loop behavior, and fine-tune the palette for a small file that still looks good.