What is the best resolution for an Android boot animation?

480×854 (SD) is the sweet spot for most devices — files stay under 5 MB and look sharp. Avoid 1080p which produces 5× larger files with no visible boot quality improvement.

Why must bootanimation.zip be uncompressed?

Android's bootloader reads the animation before filesystem decompression libraries are loaded. Only STORE (0%) compression works — this tool enforces it automatically.

How do I install the boot animation?

Rename the file to bootanimation.zip, copy to /system/media/ using a root file manager, and set permissions to 644 (rw-r--r--).

← Back to StudioAdvanced Tool

Video → Boot Animation

Convert MP4 / WebM into a root-ready bootanimation.zip. Proper Android resolutions, frame dedup, PNG smoothing — outputs stay under 5 MB.

1. Import Video

🎬

Click or drag & drop to select .mp4 / .webm / .mov

2. Android Boot Animation Settings

📺 Target Resolution

480×854 is optimal — files stay tiny. 720×1280 only if you need extra crispness.

✂️ Trim Range

Start (s)

End (s)

Clip: 0.0s → 0.0s (0.0s)

⚙️ Frame Rate & Fit

FPS

Resize Mode

🔁 Loop & Parts

Part Structure

Intro: 40% · Loop: 60%

part0: ~0f · part1: ~1f

🗜 Size Optimizations

Skip Duplicate Frames

Drops identical consecutive frames. Huge savings on static/slow scenes.

Frame Step (skip every Nth)

Effective: 6.0 FPS

PNG Smoothing

Slight blur reduces PNG entropy → smaller files, invisible on screen.

Android Boot Animation Guide & FAQ

Q: Why is 480×854 recommended over 1080p?

At 1080×2400, a single PNG frame averages 800 KB. At 480×854, the same frame is ~90 KB — 9× smaller. Boot animations are shown at system startup for 3–6 seconds. Users see no quality difference, but the ZIP is a fraction of the size.

Q: What does 'Skip Duplicate Frames' do?

Many videos have near-identical consecutive frames (e.g. slow zooms, fades). Our tool hashes each frame's pixel data and skips any frame that matches the previous one, keeping the animation looking identical but producing far fewer PNG files.

Q: What is PNG Smoothing?

Before exporting each frame as PNG, we apply a micro-blur (0.4px by default). This reduces high-frequency pixel noise — a major driver of PNG file size — with no visible quality loss on a moving boot sequence. It can reduce file size by 20–40%.

Q: Why must bootanimation.zip use STORE mode (uncompressed)?

Android's bootloader reads the animation before filesystem decompression libraries are initialized. Only raw block-level reads (STORE compression) work. A deflate-compressed ZIP causes a black screen or bootloop. This tool enforces STORE automatically.

Q: How do I flash it to my phone?

1. Rename the downloaded file to bootanimation.zip. 2. Using MiXplorer or any root file manager, navigate to /system/media/. 3. Backup the original (rename to .bak). 4. Paste your file and set permissions to 644 (rw-r--r--). 5. Reboot.