Compress video and reduce video size in seconds while keeping the picture crisp. Aisu Video Compressor shrinks large, high-resolution clips into smaller, share-friendly files, so you can free up phone storage and finally send large videos on WhatsApp, TikTok, Instagram, Discord, Messenger or email without hitting upload limits. No more "file too large" errors.

🎬 Why Aisu Video Compressor?

Camera videos are simply too big to share or store. This video size reducer shrinks file size dramatically while keeping detail sharp — everything runs on your device, so it works offline and your videos stay private. No watermark, and premium is a one-time purchase, not a subscription.

✨ Key features

• 🎯 One-tap Fit to Size — tap a destination and hit its real limit: WhatsApp 16 MB, Discord 10 MB, Instagram DM 25 MB, Email 25 MB, TikTok 72 MB, Messenger 100 MB, or set a custom size. A whole-video analysis pass makes the result land on target instead of overshooting.

• 📤 Compress & share in one go — send a video into Aisu from your gallery or any app; when it finishes, the share sheet opens so you can post the smaller file straight to WhatsApp, TikTok and more.

• 👀 Before/after preview — compare original and compressed side by side with a wipe divider, and watch a 10-second sample of each clip in a batch, before you commit to the full compression.

• 📊 Live estimate — see "Estimated output ≈ X" update as you pick a target, so the final size is never a surprise.

• 🗑️ Free Up Space — see every version of a video (the original and each compressed copy), keep the one you want — the smallest is suggested — and send the rest to the system Trash (recoverable for 30 days), with a live count of the space you'll free. Or keep all versions with one tap.

• 📉 Smart compression — shrink 4K and 1080p clips with minimal quality loss.

• 📦 Batch compressor — no 10-video limit; queue as many videos as your device can handle. The durable queue survives app restarts, so large files never silently fail.

• ⏯️ Full queue control — pause, resume, reorder or clear pending videos anytime.

• ⚡ Optional simultaneous compression — process several videos at once, up to what your device supports.

• 🎛️ Custom resolution and bitrate for the perfect size-to-quality balance.

• 🔍 Sharpness control — restore fine detail lost to downscaling.

• 🎞️ Frame-rate cap to trim extra size from high-fps footage.

• 🧩 H.264 (AVC) and H.265 (HEVC) presets — HEVC gives about half the file size at the same quality.

• 🕓 Compression history and a space-saved dashboard so you always know how much you've reclaimed.

• 📁 Supports MP4, MOV and other common formats.

• 🗂️ Choose where your videos are saved — the app folder, a folder you pick, or the same folder as the original.

• 🌍 Available in 13 languages.

• 🔒 100% private and offline — your videos never leave your device.

👤 Perfect for

Content creators, students, and anyone who records on their phone and needs to send, upload, or store videos quickly — whether posting to TikTok or Instagram, emailing a long clip, or clearing space for new memories.

🔐 Private by design

All compression happens locally. Nothing is uploaded to a server, so your personal videos stay strictly yours.

Stop fighting storage warnings and upload limits. Download Aisu Video Compressor and start sharing effortlessly.