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Image Annotator

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.

Everything runs locally in your browser. Your data never leaves your device.

Image

Drop a screenshot or image here

PNG, JPG, WebP… Click to choose a file, or press Ctrl+V to paste a screenshot.

It never leaves your browser.

Next steps

Send this tool's output straight into another tool.

JPG Image Compressor

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.

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Image Converter

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.

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EXIF Editor

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.

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EXIF Transfer

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.

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Image Annotator

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.

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Hash Generator

Hash text or a file with MD5, SHA-1, SHA-256, SHA-512, SHA-3, BLAKE2, BLAKE3, CRC32 and more, all computed live as you type. Compare against an expected checksum and copy any digest.

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Checksum Validator

Verify a checksum online: drop a file, paste the expected checksum and see instantly whether they match. The hash type is detected from the checksum itself, covering MD5, SHA-1, SHA-256, SHA-512, BLAKE3, CRC-32 and more, and sha256sum lines or whole checksum files can be pasted as-is.

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Data Compressor

Compress text or a file with gzip, deflate, brotli or Zstandard and see the size before and after, the compression ratio and how long it took. One click tries every method and recommends the smallest result.

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Data Decompressor

Decompress gzip, deflate, brotli or Zstandard data from a file or pasted Base64 and read the result as text or download it. Detects the format from the magic bytes where possible, with a manual override.

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About the Image Annotator Tool

This tool lets you draw on a screenshot or any other image. Load a picture, or just paste it with Ctrl+V, then point things out with arrows, boxes, circles, text labels and numbered step badges, run a highlighter over the important part, and blur or pixelate anything you don't want others to read.

It is built for the pictures you share every day: a bug report, a quick how-to, a screenshot with an email address that needs hiding. When you are done, download the result as PNG or JPG, or copy it straight to the clipboard and paste it into your chat.

What you can do

  • Add arrows, rectangles, circles, lines and freehand strokes to a screenshot.
  • Blur or pixelate part of an image to hide private information.
  • Put numbered step badges on a screenshot for a walkthrough.
  • Add text labels, with an optional backdrop so they stay readable.
  • Highlight a region like a marker pen.
  • Crop the image to just the part that matters.
  • Add a text watermark with a position, size, color and opacity of your choice.
  • Frame the export on a gradient or solid background with rounded corners.
  • Copy the finished image to the clipboard, or download it as PNG or JPG.

How to use the Image Annotator

  1. 1Drop an image in, pick one from disk, or paste a screenshot with Ctrl+V.
  2. 2Pick a tool from the toolbar and draw directly on the image. New shapes use the selected color, red with no fill by default.
  3. 3Switch to the select tool to move, resize, restyle or delete anything you added. Ctrl+Z undoes any step.
  4. 4Blur or pixelate sensitive spots, crop if needed, and add a watermark if you want one.
  5. 5Choose PNG or JPG, optionally add a background frame, then download or copy the result.

Hiding sensitive information properly

The blur and pixelate boxes change the actual pixels of the exported image, they are not a see-through layer that could be removed later. Pixelation is the safer choice for text like names, emails or account numbers, since heavy pixel blocks destroy more of the original detail than a soft blur.

Both effects also cover any annotations drawn under them, so the order you stack things in matters. You can bring objects forward or send them back from the toolbar.

Made for screenshots

The fastest way in is paste: take a screenshot, open this page and press Ctrl+V. Numbered badges count up on their own, so clicking out a 1, 2, 3 walkthrough takes seconds. The crop is applied at export, so you can change your mind about it at any time, and the export always uses the image's full resolution no matter how far you zoomed while editing.

If the file needs to be smaller before you share it, send the result to the JPG Image Compressor, or change its format with the Image Converter.

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Color Blindness Simulator

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.

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Color Palette Extractor

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.

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EXIF Editor

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.

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EXIF Transfer

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.

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Favicon Generator

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.

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