Icon Mask · Free Local Tool

App Icon Mask Preview

Apply masks such as Circle, Rounded Square, and Squircle to the icon to check the safe area and multi-size recognition.

No uploadsMobile-friendlyTheme support

What is the App Icon Mask Previewer?

Apply masks such as Circle, Rounded Square, and Squircle to the icon to check the safe area and multi-size recognition. ToolHub places the core computing entirely within the browser, allowing immediate use on both desktop and mobile devices, without the need to register an account or send content to the backend.

How to use this tool?

  1. Enter the data according to the field prompts and select the required processing method.
  2. Click "Process Now" to view the results, indicator summary and necessary error messages.
  3. After confirming that the content meets actual needs, you can copy the results or download them into files for further use.

Suitable use cases

App Icon, PWA, desktop app, brand assets and pre-launch checks. All processing is completed in the current page, which is especially suitable for workflows that do not want to post internal data to remote services.

Interpretation of results and precautions

The platform mask may be adjusted according to the system version, and formal submission should still be reviewed according to the latest platform specifications. Tools will validate basic input formats and provide readable error messages, but production environments should still be reconfirmed against source specifications, business rules, or professional requirements.

Browser and device support

App Icon Mask Preview supports current Chrome, Edge, Firefox, and Safari releases. Mobile and desktop layouts use the same validation rules documented on this page.

Frequently Asked Questions

Will the App Icon Mask Previewer upload data to the server?
No. Tool functions are executed directly within the current browser tab, and input and generated results will not be uploaded or saved by ToolHub.
What usage scenarios is the App Icon Mask Previewer suitable for?
App Icon, PWA, desktop app, brand assets, and pre-launch checks
Do I need to install software before using the App Icon Mask Previewer?
No need. Use a desktop or mobile browser that supports modern JavaScript, and no account is required.
What are the limitations of this tool?
The platform mask may be adjusted according to the system version, and formal submission should still be reviewed according to the latest platform specifications.
Is manual inspection required after the results are generated?
Needed. Tools can assist with calculations, conversions, or formatting, but before going online, importing data, or making business decisions, the results should still be reviewed according to actual specifications.

App Icon Mask Preview: inputs, output, and reproducible example

Use the free App Icon Mask Preview online. Fast, private, mobile-friendly, and processed directly in your browser.

What this page actually processes

FieldControlDefault exampleValidation role
App iconLocal fileChoose a local fileApp icon is read by the browser as a local file value before the tool runs.
background colorText#111827background color is read by the browser as a text value before the tool runs.
Safe area ratio %Number66Safe area ratio % is read by the browser as a number value before the tool runs.

Reproduce the built-in example

Start with App icon = Choose a local file; background color = #111827; Safe area ratio % = 66, then run App Icon Mask Preview. Change one input at a time so the effect on the result remains traceable.

After validating app icon, background color, safe area ratio %, the page displays its result in the output workspace and enables the relevant copy or download action.

When to use it and how to interpret the result

App Icon, PWA, desktop app, brand assets and pre-launch checks. All processing is completed in the current page, which is especially suitable for workflows that do not want to post internal data to remote services.

Limits and checks before use

The platform mask may be adjusted according to the system version, and formal submission should still be reviewed according to the latest platform specifications. Tools will validate basic input formats and provide readable error messages, but production environments should still be reconfirmed against source specifications, business rules, or professional requirements.

Page verification record

Controls inspected3 documented inputsResult pathValidate → process → review → copy/downloadLast content review2026-09-02