Guides › Flutter Launcher Icons: Manual Setup vs. Automated Generators
Flutter Launcher Icons: Manual Setup vs. Automated Generators
What it actually takes to add app icons to a Flutter project by hand, and where an automated generator saves real time.
Setting a Flutter app's icon manually is entirely possible — every platform's requirements are publicly documented — but walking through what "by hand" actually involves makes it clear why most teams reach for an automated tool the moment they need to support more than one platform.
What manual setup actually involves
Doing it by hand means, at minimum: exporting your logo at every required pixel size for every platform you support; naming each exported file exactly as that platform's build tooling expects; placing each file in the correct nested folder inside android/, ios/, web/, windows/, macos/, or linux/; and, for iOS and macOS specifically, hand-editing a Contents.json manifest so Xcode knows which file maps to which idiom and scale. For Android, it also means separately producing a monochrome silhouette for notification icons and, if you want adaptive icons, a foreground/background layer pair with the artwork correctly scaled into a safe zone.
None of these steps are individually hard, but there are roughly 40-50 individual files across a full six-platform set, and a single wrong dimension or misspelled filename typically fails silently — the platform falls back to a default icon rather than throwing a build error, which makes mistakes easy to miss until you actually run the app.
What changes when your logo changes
The real cost of the manual approach shows up on the second pass, not the first — the moment a logo gets redesigned or a color changes, every one of those 40-50 files needs to be re-exported and re-placed by hand, again, correctly. A generator that produces the whole set from one source image in a single run turns that repeat cost back down to whatever it costs to run the tool again.
When manual editing still makes sense
None of this means automation is always the right call — a team that needs a genuinely different (not just resized) icon per platform, with platform-specific art direction baked in by hand, is doing something a generic size-and-format generator was never meant to replace. Automated generation is squarely aimed at the far more common case: one logo, resized and formatted correctly everywhere it needs to go.
Ready to generate your icons? Open FLogo Generator.