minimo (photo) is a free mobile app for shrinking photos directly on your device. No cloud upload. No subscription. Your photos stay yours.

Also available: minimo (video), for compressing videos on your device.

Features

• Simple quality presets: high, medium, low
• Advanced controls: quality, maximum dimensions, and EXIF metadata
• Batch compression with progress and cancellation
• Before-and-after comparison
• Save and share compressed photos

Native compression pipeline

flowchart TD
    A[PhotoFileAdapter<br/>loads photos from gallery or files] --> B[CompressBloc<br/>processes photos sequentially]
    B --> C[PhotoCompressorAdapter<br/>applies quality, dimensions and EXIF settings]
    C --> D[flutter_image_compress]
    D --> E{Native platform plugin}

    subgraph Android
        F[Android image APIs]
        F --> G[JPEG or PNG output]
    end

    subgraph iOS
        H[iOS image APIs]
        H --> I[JPEG, PNG or HEIC output]
    end

    E -->|Android| F
    E -->|iOS| H
    G --> J{At least 10% smaller?}
    I --> J
    J -->|Yes| K[Keep temporary result for save or share]
    J -->|No| L[Discard result and keep original]

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The selected preset sets JPEG quality and a maximum image side. A photo is skipped when recompression saves less than 10%; this commonly happens when its dimensions are already below the preset limit. iOS keeps HEIC output for HEIC/HEIF sources; Android writes them as JPEG.

How to contribute

Credits

• Photo compression is powered by flutter_image_compress. Respect and thanks to its maintainers and contributors.
• Store screenshot editor: app-store-screenshots by Parth Jadhav.
• Local metadata workflow: asc-metadata-sync and App Store Connect CLI by Rudrank Riyam.

Contacts

License