# Video Quality Enhancer

> A video quality enhancer fixes 3 common problems: low resolution, compression blocks and soft detail. It rebuilds each frame with AI rather than just sharpening it. Kenerate's enhancer is its AI Video Upscaler: upload a clip up to 5 minutes and about 100 MB, choose 720p, 1080p, 2K or 4K, and download it with the same length and frame rate.

URL: https://kenerateai.com/video-quality-enhancer
Publisher: Kenerate AI (https://kenerateai.com)
Last updated: 6 October 2026

## Key facts
- Fixes: Low resolution, blocks, soft detail
- Doesn't fix: Shake, low frame rate, colour
- Output sizes: 720p · 1080p · 2K · 4K
- Clip limit: 5 min · about 100 MB
- Kept: Length, frame rate, aspect ratio
- Watermark: None
- Low resolution (Fixes it: Yes): Small, soft picture on a big screen → Rebuilt at 720p, 1080p, 2K or 4K. Choose the size of the screen it will play on.
- Compression blocks and banding (Fixes it: Yes): Squares in dark areas, steps in skies → Smoother gradients and cleaner edges. Re-uploaded, downloaded or heavily compressed clips.
- Soft detail (Fixes it: Partly): Edges and textures look smeared → Sharper edges, consistent from frame to frame. Slight softness; a badly out-of-focus shot stays soft.
- Grain in low light (Fixes it: Partly): Dim indoor or night footage → Cleaner detail as it upscales. Dim but steady shots, like the concert clip on this page.
- Shaky camera (Fixes it: No): The whole frame jitters → Unchanged. Use stabilisation in a video editor first.
- Choppy motion (Fixes it: No): Low frame rate, stutter → Same frame rate as the upload. Needs frame interpolation, a different process.
- Dark or washed-out colour (Fixes it: No): Flat, too dark or wrong white balance → Colours stay as recorded. Adjust exposure and colour in an editor.

## Steps
1. Name the problem — Use the table below: low resolution, blocks and soft detail are what the enhancer fixes.
2. Upload the clip — A video up to 5 minutes and about 100 MB; sign in with a verified email first.
3. Choose the output size — 1080p is the default; pick 2K or 4K only if the video will play on a bigger screen.
4. Enhance — A short clip takes a few minutes; 4K and longer clips take much longer.
5. Compare and download — Check the before/after viewer at full zoom, then download the MP4.

## In depth

### Three reasons a video looks bad
Most poor-quality clips have one of three causes, and only the first two are fully fixable afterwards.
- Too few pixels: the clip was recorded or exported small and is now shown big.
- Too much compression: a low bitrate threw detail away and left blocks and bands [1][3].
- Problems at capture: focus, shake, low light or a low frame rate.

### What enhancement does to each frame
Kenerate's enhancer runs the LTX-2 video upscaler. It looks at neighbouring frames to rebuild plausible detail [2], smooths compression blocks and banding, and keeps the sharpening consistent so edges don't flicker or shimmer as the clip plays.

### Resolution vs bitrate
Resolution is how many pixels a frame has; bitrate is how much data per second describes them [3]. A 1080p clip at a low bitrate can look worse than a clean 720p one. That's why an enhanced file is usually larger: it carries both more pixels and the detail that fills them.

References:
[1] Compression artifact — Wikipedia: https://en.wikipedia.org/wiki/Compression_artifact
[2] Video super-resolution — Wikipedia: https://en.wikipedia.org/wiki/Video_super-resolution
[3] Bit rate — Wikipedia: https://en.wikipedia.org/wiki/Bit_rate

## FAQ
Q: What is a video quality enhancer?
A: It is a tool that makes a clip look better without reshooting it. AI enhancers rebuild each frame at a higher resolution, remove compression blocks and sharpen soft detail in a way that stays consistent from frame to frame. Kenerate's enhancer is its AI Video Upscaler, which outputs 720p, 1080p, 2K or 4K.

Q: Can a video enhancer fix a blurry video?
A: Partly. It sharpens soft edges and textures and rebuilds detail that compression smeared, so slightly blurry clips look clearly better. It can't refocus a shot that was badly out of focus or undo strong motion blur, because that detail was never recorded.

Q: Can it fix shaky or choppy video?
A: No. Shake needs stabilisation and choppy motion needs frame interpolation, and both are different processes. Kenerate's enhancer keeps the frames you upload, so the length and frame rate stay the same. Stabilise in a video editor first, then enhance the steadied clip.

Q: Is there a free video enhancer?
A: Video editors have basic sharpen filters for free, and open-source upscalers run free on a capable computer. Kenerate's enhancer runs online with no subscription: it uses credits, new accounts get starter credits to try it, and the result has no watermark.

Q: How do I increase video quality without a huge file?
A: Pick the smallest size that fits the screen. 1080p suits phones, social media and most websites, and finishes much faster than 4K. Higher sizes make sense for 4K TVs, large monitors or edits that mix with 4K footage.

Q: Does it remove pixelation from downloaded clips?
A: Yes, that is one of its strengths. Clips that were uploaded and downloaded several times pick up blocky squares and banding, and the enhancer smooths them while it rebuilds detail. Start from the cleanest copy you can find, because heavier damage leaves less to work with.

Q: Should I add subtitles before or after enhancing?
A: For a 4K file, add subtitles first. Kenerate's subtitle tool outputs 720p or 1080p, so captioning an enhanced 4K clip would bring it back down. Caption the original, then enhance the captioned clip to the size you need. For a 1080p result, either order works.

## Related pages
- AI video enhancer: https://kenerateai.com/ai-video-enhancer
- Improve video quality: https://kenerateai.com/improve-video-quality
- Unblur video: https://kenerateai.com/unblur-video
- Fix pixelated video: https://kenerateai.com/how-to-fix-pixelated-video
- Fix TikTok video quality: https://kenerateai.com/fix-tiktok-video-quality

## Sources
- Kenerate AI Video Upscaler (tool): https://kenerateai.com/app/tool/video-upscale
- Compression artifact — Wikipedia: https://en.wikipedia.org/wiki/Compression_artifact
- Video super-resolution — Wikipedia: https://en.wikipedia.org/wiki/Video_super-resolution
- Bit rate — Wikipedia: https://en.wikipedia.org/wiki/Bit_rate