Social Image Composer
Free. Runs in your browser; files are not uploaded.
Drop an image here
PNG, JPG, WebP or HEIC. You can also paste an image.
Runs locally in your browser. Files are processed on this device and are not uploaded.
What is a social image composer?
Each platform shows images at its own size, from a 1080 × 1080 Instagram post to a 2560 × 1440 YouTube channel banner. A composer fits one source image to each of those sizes.
Pad mode keeps the whole image and fills the space around it with a color, a gradient or a blurred copy of the image. Crop mode fills the frame and cuts off the edges; drag the preview to choose which part stays.
Zoom runs from 1× to 4× and padding from 0% to 30%. Each download is named after the source and the size, for example shot-1200x630.png.
Convert image formats
Need a different file type for the source image first? The converters change one file or a batch.
Automate Your Screenshots. with Temposhot.
The tools on this page work on files you already have. Temposhot is the Mac app that makes those files: it captures a screen, window or area on a timer, presses a key between shots, and exports the set as PDF, images, ZIP or MP4.
Free download. Apple Silicon, macOS 14 or later.
Features
Hands-free capture
Set a stop condition and an interval once. Temposhot keeps capturing while you do something else.
How Auto Capture works- Stop after a number of screenshots, a duration, or at a clock time
- Intervals in milliseconds, seconds, minutes or hours
- A whole display, one app window, or a custom area
Page-by-page archives
Add a key press after each screenshot and the reader app turns its own pages.
Save pages as a PDF- Right Arrow, Page Down, Space or any recorded key combination
- The Kindle preset: 20 screenshots, 500 ms apart, Right Arrow after each
- Export the ordered pages as one searchable PDF
Step-by-step guides from clicks
Do the task once. Action Capture saves the screen before every click and marks where you clicked.
About Action Capture- One page per accepted click, in order
- Titles, descriptions, arrows, shapes and framing in the editor
- Export the guide as PDF, PNG, JPG, WebP or ZIP
Website batches
Paste a list of URLs and capture every page with its own viewport, wait and format settings.
About Website Capture- Desktop 1920 × 1080, tablet 768 × 1024 or mobile 390 × 844
- Viewport or full-page screenshots in JPEG, PNG or WebP
- Cookie banner handling, ad and tracker blocking
Need source screenshots?
Temposhot captures clean screenshots of a screen, window or area on your Mac, ready to compose for each platform.
Free download. Apple Silicon, macOS 14 or later.