Free ASO tools
App Store Optimization tools for iOS and Google Play developers — write metadata, size icons and screenshots, make badges and QR codes, and sharpen your listing. Every tool is free and runs in your browser, so your assets never leave your device.
App name generator
Turn a couple of keywords into brandable app names, then check each one against the live App Store to see what's taken.
Generate names →Promotional text generator
Turn what your app does into ready-to-paste App Store promotional text under the 170-character limit, with a linter that catches rejections.
Write promo text →Release notes generator
Paste your commits and get clean “What's New” notes for the App Store and Google Play, with engineering jargon translated for users.
Write release notes →Screenshot sizes by device
Exact App Store and Play Store dimensions for every iPhone, iPad, and Android device, with requirements.
Browse sizes →App icon sizes
Every iOS and Android app icon size, the Xcode set, and Android's adaptive-icon safe zone.
See icon sizes →Screenshot size checker
Upload a screenshot and validate its dimensions, format, and store requirements in one click.
Check a screenshot →ASO keyword density analyzer
Analyze keyword density in your listing, catch keyword stuffing, and sharpen your ASO strategy.
Analyze keywords →
App Store badges
Download the official “Download on the App Store” badge in black or white, SVG or PNG, in every language, or generate a linked badge.
Get the badge →
Google Play badges
Download the official “Get it on Google Play” badge in SVG or PNG, in every language, or generate a linked badge for your app.
Get the badge →App Store QR code
Turn your App Store link into a scannable QR code for posters, packaging, and slides. Add the official badge and download PNG or SVG.
Make a QR code →Google Play QR code
Turn your Play Store link into a scannable QR code for posters, packaging, and slides. Add the official badge and download PNG or SVG.
Make a QR code →Smart App Banner generator
Generate the Apple apple-itunes-app meta tag to promote your iOS app in Safari, with deep linking and an Android alternative.
Make a banner tag →Feature graphic generator
Design a Google Play feature graphic at the exact 1024×500 size and download it, ready for the Play Console.
Make a feature graphic →About these ASO tools
What are ASO tools?
ASO (App Store Optimization) tools help app developers improve how their app is found and how well its store listing converts. That covers writing metadata like promotional text, sizing icons and screenshots to each store's exact requirements, generating badges and QR codes, and analyzing keyword density. These are all of those, free and in your browser.
Are these ASO tools free?
Yes, every tool here is completely free with no sign-up. They run entirely in your browser, so there's nothing to install and nothing to pay for.
Do these tools upload my app's assets or data?
No. Everything runs client-side in your own browser — icons, screenshots, and text you enter never leave your device. That means the tools work on unreleased assets without any privacy exposure, and some keep working offline once loaded.
Do these tools work for both the App Store and Google Play?
Yes. The tools cover iOS and Android where each applies — for example screenshot and icon sizing, badges, and QR codes exist for both stores, while store-specific fields like App Store promotional text or the Google Play feature graphic target one store.