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App Icon Generator

Last updated:

Last updated:

Generate app icons for iOS and Android in all required sizes. Upload one high-resolution image and get all the icons you need for App Store and Google Play.

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Click to upload or drag and drop
Recommended: 1024x1024px square image with no transparency

Tip: iOS icons will have rounded corners applied automatically by the system. Android supports adaptive icons with separate foreground and background layers. For best results, use a 1024x1024px source image with your logo centered.

What App Icon Generator Does and Why It Matters

App Icon Generator helps people create a useful draft or asset from settings you control without turning a simple task into a full software project. In real work, app icon generator tasks often appear right before a deadline: a document has to be sent, a data file needs to be checked, an image must be prepared for publishing, a calculation needs a second scenario, or a developer has to verify a pasted value before it enters a larger workflow. This page focuses on that practical moment. The interface gives you a direct place to provide the input, review settings, run the operation, and keep the result close enough to inspect before you use it elsewhere. That matters because small preparation mistakes can create oversized attachments, unreadable exports, broken imports, misleading estimates, or accidental exposure of details that should have stayed private.

The main value of App Icon Generator is control. Instead of sending material through an unfamiliar workflow, you can use the browser to perform the job, observe the state of the input, and decide whether the output is ready. Generate app icons in all required sizes for iOS and Android. Automatic resizing and optimized output. The tool is especially useful for teams that need quick utility work between larger applications: support staff preparing evidence, creators publishing assets, finance users comparing planning assumptions, students organizing files, and developers validating snippets before sharing them in tickets or pull requests. It is intentionally focused on one job, so the page can explain what is supported, what should be checked manually, and when a specialist application or professional review is more appropriate.

Experience signals on this page are written around common failure points rather than generic marketing. For App Icon Generator, the important questions are whether the source material is in a supported format, whether the browser has enough memory to complete the action, whether the result keeps the information you expect, and whether any limitation changes how you should use the file or value. Reading these notes before you click the main action can save time because it frames the tool as part of a workflow: prepare the input, run the operation, inspect the output, then keep or discard the result based on evidence.

How to Use App Icon Generator

  1. Open App Icon Generator and read the short instructions near the interface so you know which input type the page expects.
  2. Upload the supported file, paste the text, or enter the numeric values requested by the form; avoid adding unrelated private information.
  3. Review every visible option, such as output format, range, quality, delimiter, units, date, rate, or mode, because these settings shape the final result.
  4. Run the tool with the primary action button and wait for the status message, preview, validation result, calculation, or progress indicator to finish.
  5. Inspect the displayed result carefully, including file name, page order, dimensions, row count, formatting, estimate assumptions, warnings, and any visible errors.
  6. Download the generated file, copy the result, or record the calculation only after the preview matches your intended use case.
  7. Clear the page or close the browser tab when finished, especially on a shared device or when the input included confidential material.

Supported Formats and Limitations

Supported input formats

  • URLs, campaign parameters, images, thumbnails, captions, tags, icons, or profile-related files
  • Platform size choices, output names, and campaign labels
  • Local files selected for resizing, icon creation, screenshots, or thumbnail preparation

Supported output formats

  • Prepared social images, UTM links, icons, hashtags, thumbnails, or campaign-ready text
  • Downloadable files and copy-ready campaign strings
  • Preview information that helps confirm dimensions, naming, or tracking structure

Known limitations and edge cases

  • Platform requirements change, so final uploads should be checked against the destination platform.
  • Hashtags, thumbnails, and campaign labels still need human review for accuracy and brand safety.
  • Some screenshot or video workflows may depend on browser capabilities and public page access.

For best results, test App Icon Generator with a small sample before committing a large batch or an important deadline item. Browser utilities are convenient because they reduce setup and keep the workflow close to the user, but they still depend on device memory, browser permissions, source-file quality, and the exact assumptions entered into the interface. If the output will be used for legal, medical, financial, security, accessibility, or production engineering decisions, treat the result as a preparation aid and verify it with the appropriate system of record.

Privacy and Security

App Icon Generator is designed around a privacy-first browser workflow. Where possible, files and inputs are processed client-side in your browser, which means the work happens on your device instead of being permanently stored on NovaTools servers. Uploaded data is not stored on servers permanently by this page, and the safest habit is still to avoid uploading or pasting secrets that are not required for the task. Some features may depend on browser APIs, optional public lookups, or third-party libraries loaded by the page, so you should review the interface notes and avoid using confidential production data unless the tool behavior fits your policy.

Frequently Asked Questions

Is App Icon Generator suitable for confidential work?

It can be suitable for many confidential preparation tasks when the operation is completed locally in the browser and your organization allows that workflow. You should still avoid unnecessary sensitive fields, use a trusted device, clear the page afterward, and verify whether any optional lookup or external dependency is involved before using regulated or secret material.

Why should I inspect the output before downloading or copying it?

Inspection is the step that turns a quick utility into a reliable workflow. A file may process successfully while still having the wrong order, dimensions, delimiter, estimate assumption, encoding, or visual quality. Reviewing the preview and status details helps catch those issues before the result reaches a client, upload portal, repository, spreadsheet, or public page.

What should I do if App Icon Generator does not accept my input?

Start by checking the file type, size, formatting, and any visible error message. Try a smaller sample, remove unsupported characters or corrupted content, and confirm that your browser is current. If the source file uses a proprietary format, encryption, unusual encoding, or a damaged structure, a dedicated desktop application may be needed before this browser tool can help.

Related Tools

About App Icon Generator

App Icon Generator is a free tool for mobile app developers that creates all required icon sizes for iOS and Android platforms from a single source image. Instead of manually resizing your app icon dozens of times, upload one high-resolution image and get a complete set of icons ready for App Store Connect and Google Play Console.

How to Use

  1. Create or prepare a 1024x1024px square image of your app icon.
  2. Upload the image using the upload area above.
  3. Select your target platform (iOS or Android) using the tabs.
  4. Preview all generated icon sizes.
  5. Click "Download All Icons" to save all files at once.

iOS Icon Sizes

SizeUsageFilename
20x20 @2x, @3xiPad/iPhone notification[email protected], [email protected]
29x29 @2x, @3xiPad/iPhone settings[email protected], [email protected]
40x40 @2x, @3xiPad/iPhone spotlight[email protected], [email protected]
60x60 @2x, @3xiPhone app icon[email protected], [email protected]
76x76 @2xiPad app icon[email protected]
83.5x83.5 @2xiPad Pro app icon[email protected]
1024x1024App StoreIcon-1024.png

Android Icon Sizes

DensitySizeFolder
ldpi36x36mipmap-ldpi
mdpi48x48mipmap-mdpi
hdpi72x72mipmap-hdpi
xhdpi96x96mipmap-xhdpi
xxhdpi144x144mipmap-xxhdpi
xxxhdpi192x192mipmap-xxxhdpi
Google Play512x512Play Console

Frequently Asked Questions

What image format should I upload?

Upload a PNG or JPG file with a square aspect ratio (1:1) and at least 1024x1024 pixels. The image should have a solid or transparent background with your logo/icon centered. Avoid using photos as app icons - simple vector-style graphics work best.

Does iOS add rounded corners automatically?

Yes. iOS automatically applies rounded corners and the "squircle" shape to your app icons. You should upload a square image without rounded corners. The system will mask it appropriately on the device.

What's the difference between iOS and Android icons?

iOS uses a consistent grid system with specific @2x and @3x scales for different device pixel densities. Android uses density buckets (mdpi, hdpi, xhdpi, etc.) with different base sizes. Android also supports adaptive icons that can have different shapes on different devices.

Are my images stored on your servers?

No. All processing happens entirely in your browser using HTML5 Canvas. Your app icon designs are never uploaded to any server, ensuring complete privacy and security for your intellectual property.

Can I use this for web app icons too?

Yes! The 192x192 and 512x512 sizes generated are perfect for Progressive Web App (PWA) icons. You can also use the Favicon Generator tool for browser tab icons.

Recommended next reading

Use these practical guides to understand when this tool is the right choice, what to check before exporting, and which workflow usually comes next.