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MP4, MOV, AVI, WebM, MKV · up to 4 GB
Private
100% Local Processing
GPU Fast
Uses WebCodecs API
Scale
Supports 60+ Min Files
Hybrid
AI Scan + Manual NLE
Desktop-Class Timeline
Experience a fluid, frame-accurate editor built with hardware-accelerated Canvas. Scrub through waveforms at 60FPS, zoom into milliseconds for precise cuts, and use the same workflow as professional desktop software.
- Retina-ready waveform rendering
- Multi-track visual hierarchy
- Instant zoom & scroll performance
Intelligent Speed Ramping
Hard cuts aren't always the answer. For tutorials and coding walkthroughs, use Speed Mode to fast-forward through silences at 2x or 4x. Maintain the visual flow while respecting your viewer's time.
- Customizable ramp speeds
- Lossless audio preservation
- Visual speed-zone markers
No-Render Live Preview
Stop waiting for progress bars just to check an edit. Our real-time engine physically skips cut regions as you play back, giving you an immediate preview of the final export without a single second of rendering.
- Instant playback feedback
- Skip/Speed toggle in real-time
- Zero CPU overhead during seek
How it Works.
From raw file to polished output in three simple steps.
Import Locally
Drag your files into the browser. We support massive 4K files with zero upload time.
AI Analysis
The AI scans your audio peaks to identify every silent moment with millisecond precision.
Export 4K
Download your master MP4. Every cut is rendered locally using FFmpeg for peak quality.
Common questions.
Can't find what you're looking for? Reach out to our technical team.
Is my video uploaded to your servers?
Never. SilenceAI is a local-first application. We use FFmpeg.wasm and WebCodecs to process your files entirely inside your browser's memory.
What resolutions are supported for export?
Our free tier supports 720p drafts. Pro users can export in uncompressed 1080p and 4K UHD resolutions with zero watermarks.
Does it work on mobile?
While you can preview files on modern mobile browsers, we recommend a desktop with at least 8GB of RAM for the best editing experience.
Can I use multiple files at once?
Yes, Pro users can batch process multiple files in a single session, perfect for long podcast episodes or series.