Video Enhancer
Video Enhancer makes blurry, grainy or low-resolution videos sharper and upscales them to 720p or 1080p, right in your browser. Drag across the live before/after preview to compare, adjust sharpness and noise reduction, then export an MP4. Your video is never uploaded.
Drag & drop your file here
or browse files from your device
Max size limit: 1024 MB per file
Specifications
Guide
Upload your video
Drop an MP4, MOV, WebM or MKV file. It is processed on your device and never uploaded.
Compare and adjust
Drag across the preview to compare Original and Enhanced. Pick 720p or 1080p, and tune Sharpness and Noise reduction while the video plays.
Enhance and download
Click Enhance. Your GPU processes every frame and the enhanced MP4 is ready to download, with the original audio kept.
Key features
Upscale to 720p or 1080p
Turn 240p–540p clips into HD. Already-HD videos can be sharpened and cleaned at their original size.
Live before/after preview
A split-screen slider shows the exact result on any frame — even while the video plays — before you export.
Sharpening without halos
Contrast-adaptive sharpening boosts soft edges more than already-sharp ones, so the result looks natural rather than over-processed.
Noise and block reduction
An edge-preserving filter smooths grain and compression artefacts from messaging apps without smearing detail.
GPU-fast, fully private
Runs on your graphics card with hardware video encoding — typically about real-time — and nothing ever leaves your device.
Audio kept as-is
The soundtrack is copied straight into the new MP4 without re-encoding.
Frequently asked questions
It works best on low-resolution, compressed or slightly soft videos — for example clips sent over WhatsApp, old phone footage or 360p downloads. It cannot invent detail that was never recorded, so heavy motion blur or a badly out-of-focus shot will look cleaner but not truly sharp.
No. Every frame is processed on your own device using your browser's GPU and video encoder. Nothing is sent to any server.
In Chrome, Edge and Safari with hardware encoding, most videos process in about the time it takes to play them. In browsers without it, an FFmpeg fallback takes roughly 1–3 minutes per 30 seconds of video.
Go one step up from your source: 480p or smaller → 720p, 540p–720p → 1080p. Upscaling a tiny 240p clip to 1080p makes it larger but not much sharper.
Usually yes — a higher-resolution video needs more data. If you need a smaller file afterwards, run it through the Video Compressor.
MP4, MOV, WebM and MKV up to 1 GB. The output is always an H.264 MP4 that plays everywhere.
Learn more
Related Tools
Video Compressor
Reduce video file size using H.264 encoding. Choose quality level.
Video Trimmer
Cut a video to a precise start and end point using a visual timeline. No re-encoding.
Add Audio to Video
Replace or mix a video's sound with music from a file, another video or a link. Trim, place, loop.