PostStudio - AI Video Editor

PostStudio is an offline AI video editor for Android. Create reels, shorts, tutorials, vlogs and product videos with automatic captions, background removal and professional editing tools—all on your phone. No account, no ads and no watermark. From your first clip to your final export, turn everyday moments into videos with your own style. 🎬 Edit your story • Trim, split, reorder and duplicate clips on a multi-track timeline with frame-accurate stepping. • Combine photos and videos with picture-in-picture layers, titles, captions, music, sound effects and voiceover. • Create vertical 9:16 reels and shorts, square 1:1 videos, 4:5 posts or 16:9 YouTube videos. • Export MP4 in 720p, 1080p Full HD or 4K on supported devices. ✨ AI tools that work offline • Auto captions: turn English speech into editable subtitles on your device. • Person cutout: remove the background behind a person in videos or photos, without a green screen. • Auto reframe: convert wide videos to vertical while keeping faces in view. • Video stabilization: smooth shaky handheld footage. • Motion tracking: make a title, logo or image follow a moving subject. • Pause finder: find and cut silent gaps in talking videos. 🎨 Shape every frame • Animate position, scale, rotation and opacity with keyframes and easing curves. • Adjust speed from 0.25x to 4x, create speed ramps and preserve natural audio pitch. • Connect clips with dissolve, slide, wipe, zoom and dip-to-black transitions. • Fine-tune exposure, contrast, saturation and tone curves. Apply filters or import .cube LUTs. • Create with chroma key, masks, blend modes, blur, glow, grain, vignette and sharpening. • Check your colour with waveform, RGB parade, histogram and vectorscope tools. 💬 Titles and subtitles • Style animated text with outlines, shadows, background boxes and imported fonts. • Personalise captions with word highlighting. • Import and export SRT and WebVTT subtitles, or save an SRT file alongside your video. • Add Hindi Devanagari text and emoji to your edits. 🎵 Build your soundtrack • Record voiceover with a countdown and level meter. • Add music and sound effects, create fades and loop background music. • Mix tracks with mute and solo controls. Automatically lower music under speech with audio ducking. • Refine audio with a noise gate, high-pass filter, 3-band EQ and compressor. 🪄 Templates and brand kit • Start with templates for product reels, tutorials, before-and-after videos, photo montages, vlog intros, quotes, event recaps and business promos. • Save your own projects as reusable templates. • Apply your logo, colours, fonts and caption style with a brand kit. 🔒 Private by design • Editing, AI processing and export run on your device. • No sign-in, tracking, analytics or ads. • Back up a project to a single file, optionally protected with your own recovery key. • Choose where to save or share your exports and backups. • Keep exporting in the background with progress shown in a notification. ❓ Common questions Does PostStudio export without a watermark? Yes. Your exported videos have no watermark. Can I edit videos without internet? Yes. Editing, AI tools and export work offline on your phone. Can I add subtitles automatically? Yes. Auto captions support English speech. You can also import SRT or WebVTT subtitle files. Can I remove a video background? Yes. Person cutout removes the background behind a person in videos and photos. Does PostStudio support 4K export? Yes, on devices with compatible hardware. Which app languages are available? English, Hindi and Marathi. Automatic speech captions currently support English. Create your next reel, vlog or video story with PostStudio—your offline video studio.