Images, sorted.
24 free tools to shrink, resize, crop, convert and clean your images. No sign-up, no watermark, and everything runs in your browser tab.
Not sure which tool you need?
Describe the job in plain words and the helper will point you to the right one.
All 24 tools
Pick a group to narrow the list, or press Ctrl K to search.
Shrink & resize
- Compress imagesMake JPG, PNG and WebP files smaller without visible loss.
- Resize imagesSet exact pixels or a percentage, or shrink to a target size in KB.
- Exam photo and signature resizerExact pixels and KB for exam forms, with requirements and sources.
- Pixel, cm and inch converterConvert between pixels, centimetres and inches at any DPI.
- Aspect ratio calculatorFind the matching height or width for any ratio.
Edit & transform
- Crop imagesDrag a box, pick a ratio like 1:1, or type exact pixels.
- Rotate and flipTurn an image 90, 180 or 270 degrees, or mirror it.
- Circle crop and round cornersMake a round profile picture or round the corners of any picture.
- Split an image into a gridCut a picture into equal tiles for a grid post or a puzzle.
- Merge images side by sideJoin several pictures into one, in a row or a column.
- Adjust colours and filtersBrightness, contrast, saturation, black and white, sepia and more.
- Add a border or framePut a coloured border or padding around a picture.
Add text & effects
- Add a watermarkPut your name or a copyright line on a picture before you share it.
- Add a logo to picturesPut your logo on a picture, or on many at once, before you share it.
- Add text to an imageWrite on a picture with any size, colour and position.
- Pixel art makerTurn a photo into chunky pixel art.
- Blur or hide parts of an imageBlur, pixelate or cover areas such as names and numbers.
Convert & combine
Your files stay with you
Every tool runs in your browser. Your pictures are not uploaded to our servers.
No account, no watermark
Open a tool and use it. Nothing to install, and nothing stamped on your results.
Made for phones too
Pick a photo from your gallery or take one, and every tool works at phone size.
How-to guides
Short walkthroughs for the jobs people search for most. Each gives the answer first.
- How to compress an image without losing qualityShrink JPG, PNG and WebP files in your browser. Pick a quality, check the before and after sizes, and download. No upload, no sign-up.
- How to resize an image by pixels, percent or file sizeChange an image to exact pixel sizes, a percentage, or a target file size in KB, in your browser. Keeps the proportions. No upload.
- How to crop an image to the exact area you wantCrop a picture by dragging a box, locking a ratio such as 1:1 or 16:9, or typing exact pixels. Free, in your browser, no upload.
- How to add a text watermark to a photoPut your name or a copyright line on pictures. Choose position, size, opacity and colour, or repeat it across the image. Done in your browser.
- How to put your logo on a photoPlace your logo on one picture or many. Pick the position, size and opacity, or repeat it across the image. Runs in your browser.
- How to resize a photo and signature for an exam formGet a photo, signature or thumb impression to the exact pixels and KB an exam form asks for, using requirements from official notices.
Common questions
What is iDuckImg?
A free set of image tools: compress, resize, crop, convert, rotate and flip, combine images into one PDF, remove EXIF data, and prepare photos and signatures for exam forms.
Is iDuckImg free?
Yes. There is no sign-up and no watermark on your results. We may show ads to cover the running costs.
Are my images uploaded to a server?
No. Every tool runs in your browser, so your pictures stay on your device and are not sent to us.
Which image formats work?
JPG, PNG and WebP work in every tool. The converter and the PDF tools also open HEIC photos from an iPhone.
Do I need to install anything?
No. Open a tool in any modern browser, on a computer or a phone.