Video quality enhancer
Video quality enhancer: compare your clip
A processed video is useful when it works for the scene and size you plan to use. This page pairs the LocalUpscale workspace with a simple evaluation method: choose a representative short clip, select a picture mode and output size, inspect matching frames, and decide whether the result serves your edit, player, or display.
This continuous 30-second example was downsampled to 480 × 360, then enhanced to 1440 × 1080 while preserving its picture shape. The display videos were compressed for faster loading. It plays automatically with sound off; use the sound button to listen.
High quality can reduce detail lost to compression; exported files are usually larger.
Keep the picture aspect ratio with up to 4× enlargement. Larger outputs take longer; 4K and 8K require device support.
Start with your video
Drop a video here or choose a file. We’ll check its details before you begin.
No login. Unlimited free uses. Each run processes the first 30 seconds.
Processing time depends on your video and device. Keep this page open until your result is ready.
Full-length videos · $9.99 onceDefine what better quality means for this clip
Quality is not one universal score. You may be looking for an edge that reads more clearly in an edit, texture that holds together on a larger display, or a small recording that fits more comfortably beside higher-resolution footage. Name that use before you process a file so the comparison has a useful question to answer.
A result can be usable even when it is not perfect, and a larger frame can still be the wrong choice when it changes an important detail in an unhelpful way. Look at the same frame in the original and result, then consider the output at the size and context where you expect to use it.
Use a representative short excerpt
The free workspace processes up to the first 30 seconds of each supported video. If a long recording becomes interesting later, make a small local excerpt around the moment you actually need. Include the motion, lighting, faces, text, or background detail that will determine whether the processed version is worth keeping.
Run the excerpt, wait for processing to finish, then play the result and move through the player timeline to inspect several moments. Use the comparison divider to split the original and processed view at each matching frame. That makes it easier to check moving edges and texture before you save the MP4.
Understand what this enhancer changes
Input supports up to 1920 × 1080, or 1080 × 1920 for portrait footage. Choose Everyday video, Preserve texture, or Animation and illustration. Keep the original size, enlarge 2×, or fit to 1080p, 4K or 8K while preserving the aspect ratio, with up to 4× enlargement. Your device must support encoding the chosen size; 8K is not available on every device.
The added dimensions can make a clip easier to place in a larger layout, but dimensions and source detail are different things. The tool does not turn every missing feature into reliable information. Treat the completed file as a candidate version to assess, not evidence that all original detail has been recovered.
Review texture, compression, and motion
Pause on the details that matter to the job: letter edges, skin texture, patterned fabric, foliage, or an object moving through the frame. Then play the excerpt to see whether those details remain useful in motion. This is also a good time to notice whether pre-existing blur, compression, or noise still shapes the result.
Keep the original and processed MP4s together while you decide. Viewing both in the target edit, player, or display can be more meaningful than looking only at the enlarged result. If the scene you care about is elsewhere in the recording, prepare that excerpt and compare it in the same way.
Use a supported browser and source
The workspace checks the file and device before processing. Starting from this setup gives the browser the best chance to make a useful local result:
- Use a recent desktop Chrome or Edge browser with WebGPU, WebCodecs, OPFS, and enough available local storage.
- Choose an input within the 1080p limit; H.264 MP4 with AAC or MP3 audio is a sensible first format.
- Keep the tab open while processing, then download the completed MP4 to the device you used for the test.
Evaluate locally before sharing anything
Your video is processed on your device without uploading it. The site uses the network to load processing files and check access.
This makes the page useful as an early quality check for a clip you are not ready to place in a hosted editor. You still control what happens after the test: save the file if it helps, keep the original, or close the workspace without creating a remote project or media library.