Free App Store Screenshot Tools
These free tools fix the problems that get store screenshots rejected: wrong pixel sizes, alpha channels and over-long captions. Each one runs in your browser, so your screenshots are never uploaded.
Screenshot size checker
Drop a screenshot to check it against every App Store Connect size and Google Play’s 2:1 rule, plus alpha channel and file type. Runs in your browser; nothing is uploaded.
Screenshot resizer
Resize screenshots to any App Store or Google Play size (1320 × 2868, 2064 × 2752, 1080 × 1920…) with fit, fill or stretch, and save an alpha-free PNG. Runs in your browser.
Alpha channel remover
Flatten transparency and strip the alpha channel from PNG screenshots so App Store Connect and Google Play accept them. Pick the background colour; files never leave your device.
Caption & metadata length counter
Count characters against App Store limits (name 30, subtitle 30, promotional text 170, keywords 100 bytes) and Google Play limits (name 30, short description 80), plus screenshot-caption checks.
Store listing preview
Preview how your first three screenshots, app name and subtitle look in an App Store-style search result and product page before you upload. Free, private, in your browser.
Feature graphic sizer
Turn any image into a Google Play feature graphic at exactly 1024 × 500 with a cover crop, a centre safe-zone guide and an alpha-free PNG or JPEG download.
Batch renamer & ZIP
Rename a batch of screenshots to a clear pattern (order, device size, locale) and download them as one ZIP, ready to drag into App Store Connect or Play Console.
Frequently asked questions
Are these tools really free?
Yes. They need no account and have no limits, because the work happens in your browser instead of on our servers.
Do the tools upload my images?
No. Files are read with the browser’s File API and processed on a canvas on your device.
Where do the size rules come from?
From Apple’s App Store Connect screenshot specifications and Google Play Console Help, checked on the date shown on each page.