An online AI video upscaler for 480p, 720p, phone and AI-generated clips: upscale video to 1080p, 2K or 4K with FlashVSR. Start with a 5-second free trial; further processing is paid by resolution. Upload MP4 up to 500 MB and 120 seconds. No output watermark.
Historical SeedVR2 example: a handheld phone clip, 720 × 1152 input and 1152 × 1920 output, cropped to 16:9 for comparison. Current processing uses FlashVSR. This is not a FlashVSR, Gemini or Seedance benchmark; test your own footage with the trial.
Drag & drop your MP4 video here
or click to browse • MP4 up to 500.0 MB
Use the same moving phone scene to inspect facial texture, hair and background edges. Compare at equal display size and normal speed; this archived example is illustrative rather than a current benchmark.
Historical SeedVR2 example: 720 × 1152 input and 1152 × 1920 output, cropped to 16:9 for comparison. Current jobs use FlashVSR.
Street scenes contain branches, vehicles and small people moving at different speeds. The useful question is whether edges stay stable between frames, not whether a paused frame looks artificially sharp.
Historical product archive demonstration. Source dimensions and processing date are unavailable; do not use it as a measured success claim.
Generated footage can look soft while also containing unstable hands, faces or text. Review those regions across the whole clip and regenerate the shot when the source content is wrong; upscaling cannot repair generation errors.
Historical Sora source/result example, not a Gemini, Seedance or current FlashVSR test. Model and processing date are not recorded.
Older captures benefit from a careful grain and edge review. Keep the original master, compare dark areas and moving detail, and stop when the output starts inventing texture or halos.
Historical archival-film demonstration, not a VHS capture. Use your own digitized source for a current assessment.
An AI video upscaler is a tool that raises a video’s resolution, for example from 480p or 720p to 1080p, 2K or 4K, and uses a trained super-resolution model to estimate edges and texture that ordinary resizing cannot add. This video upscaler works online: upload an MP4, choose the output resolution and download the result. Processing runs on our servers, so no desktop software or local GPU is needed.
Resizing in an editor only spreads the existing pixels over a larger frame. The video gets bigger, not clearer. An AI upscaler predicts plausible detail from patterns learned in training, which is why it can make a soft 720p clip look cleaner at 4K, and also why it can invent texture, alter small lettering or make skin look waxy.
Video upscaling is harder than image upscaling because the estimates must agree from frame to frame. Running an image upscaler over each frame separately tends to produce flicker, because every frame is reconstructed on its own. FlashVSR, the model behind this page, is a one-step diffusion model built for video super-resolution (arXiv:2510.12747). Judge its output in motion, not on a paused frame.
Use it when a clip is recognizable but looks soft at the size you need to show it. Skip it when the shot is badly out of focus, heavily motion-blurred or too dark to read: upscaling enlarges those problems rather than removing them. It is also the wrong tool when the real issue is color, exposure or camera shake, and upscaled faces, number plates or text are not evidence of what was actually recorded.
Super-resolution estimates edges and textures from your source. Compare faces, text and moving objects at equal display size; a larger file is not proof of better detail.
Choose 1080p at $0.03/s, 2K at $0.06/s or 4K at $0.10/s. Billing is based on input video duration. Check the downloaded aspect ratio and dimensions before your final delivery export.
Use a representative 5-second clip for the free trial. Further processing requires payment. The 120-second upload limit is separate from the trial allowance.
The four players show same-scene before/after presentation and the kinds of detail to inspect. They are historical product examples with disclosed limitations, not an independent quality or speed benchmark.
Prepare a five-second MP4 containing faces, texture and motion. Record input dimensions, selected resolution and output dimensions, then compare the same frames at equal display size before buying additional processing.
Source: VideoEnhancer product testing guidance.
Download the original camera or generator file. Trim a representative 5-second MP4 with faces, texture and movement; keep it under 500 MB.
Select 1080p, 2K or 4K, then sign in and upload your sample. FlashVSR processes the file; there is no separate Gemini or Seedance mode.
Download the output and compare it with the source at the same display size. Check eyes, lettering, hair, motion edges and audio timing.
If the sample works, process additional footage on a paid basis. In your editor, preserve aspect ratio, set the delivery dimensions and add final captions before uploading.
A video upscaler increases pixel dimensions and estimates fine detail. It is most useful when the scene is recognizable but looks soft at the size you want to show it. It cannot reliably repair incorrect movement, severe focus blur or information missing from the source.
Start with the cause of the problem. Upscaling a compressed download, correcting a VHS capture and finishing an AI-generated clip require different preparation. Use the table to choose the next step before uploading.
| Your footage | Prepare it first | Inspect after upscaling |
|---|---|---|
| 480p or 720p video | Find the highest-quality original; preserve the aspect ratio. | Fine edges and faces at your intended viewing size. |
| Gemini / Veo export | Download the original generated file instead of recording the preview. | Facial texture, text and details that change between frames. |
| Seedance export | Check actual dimensions and choose a stable 5-second scene. | Hands, product logos, hair and background consistency. |
| TikTok, Reels or Shorts | Enhance your camera or editor master before the platform compresses it. | The published playback as well as the local export. |
| Old phone / family clip | Keep the original file; correct obvious exposure problems separately. | Natural skin, dark areas and moving edges. |
| VHS / camcorder capture | Digitize, deinterlace if needed and correct color in an editor. | Combing, grain and artificial textures. |
| Anime / animation | Use a clean source with intact lines and gradients. | Line weight, halos, subtitles and shimmering flat colors. |
| Product video / screen capture | Use the original render; keep final text overlays separate. | Logo shapes, small lettering and product geometry. |
To upscale 480p video to 1080p, choose 1080p in the resolution selector and upload the best available MP4 source. Inspect the downloaded picture and dimensions before exporting your final delivery canvas in an editor. Start with a short sample rather than assuming every source benefits from 4K.
A 480-line image needs a 2.25× increase in height to reach 1080 lines. A 720p-to-1080p conversion is 1.5×; 1080p to 2160p is 2× in each dimension. These are geometric ratios, not measures of recovered detail or promised model output.
Preserve the original shape. A 4:3 picture at 1080 pixels high is 1440 × 1080; it needs side bars to fit a 1920 × 1080 canvas without stretching. A vertical Full HD delivery is 1080 × 1920. Cropping to fill the canvas removes part of the image, so choose it deliberately.
Compare at equal display size rather than enlarging only the before image. If the enhanced export is still smaller than your target, ordinary resizing can fill the delivery canvas, but it cannot supply the missing detail. For heavily compressed 480p footage, a cleaner-looking HD result is a more useful goal than a 4K label.
To upscale a video to 4K online, select 4K before uploading an MP4 of up to 500 MB and 120 seconds. 4K processing costs $0.10 per input second, so a 30-second clip is $3.00. Test a 5-second sample first and compare it with a 1080p result of the same scene.
4K pays off when the source is already reasonably clean and the video will be seen large: a 1080p camera or generator export, a 2K render, or footage going onto a 4K timeline. Going from 1080p to 4K UHD (3840 × 2160) doubles each dimension and quadruples the pixel count, so there is room for finer texture to show.
For 480p or heavily compressed footage, 1080p is usually the better buy. Reaching 2160 lines from 480 is a 4.5× increase in height, and the model has to invent most of that detail. The extra pixels cost more but often only make softness and compression artifacts larger. Check the downloaded file’s actual dimensions before building a delivery timeline around it.
To improve a Gemini-generated video, download the original file, inspect its actual resolution and test a short MP4 in the upscaler. The exported file matters more than the name of the generation interface; available export settings can vary by model, plan and workflow.
Choose a scene with a face turning, a product moving or a slow camera pan. Look for softness in the same places throughout the clip. If the original has stable shapes but lacks fine texture, super-resolution may improve its appearance. Watch the result at normal speed before judging a sharp paused frame.
If objects disappear, a hand changes shape or lettering changes between frames, return to the generator and revise the shot. Upscaling can make those defects more visible. Do not repeatedly enhance an already enhanced file in the hope of correcting the underlying movement.
Add subtitles, logos and final graphics after enhancement so your editor renders them cleanly. No Gemini-specific processing mode is required here, and the phone demo above is not a measured Gemini or Veo result.
For a Seedance file that is actually 480p, keep the original download, select a stable 5-second section, upscale it and inspect the export before placing it on a 1080p timeline. If the generation service offers a better original export, use that first.
For files labeled Seedance 2.0 or Seedance 2.5 by your provider, check the file properties instead of assuming a particular output resolution. This workflow is based on the uploaded file. It does not establish a version’s default resolution, availability or native export capabilities.
Product shots need particular care: compare logos, packaging text, fingers touching the product and reflections over multiple frames. A smooth face with invented pores or a sharper but altered label is not a faithful improvement. Regenerate a defective shot instead of treating upscaling as a repair for every generation error.
The same upload workflow applies to valid short exports from other generators. There is no separate Seedance model selector on this page, and no Seedance benchmark is claimed for the demonstration above.
For an old phone recording, locate the original file rather than a copy forwarded through a messenger. Upscaling may improve soft edges, but dark noise and aggressive compression leave less reliable information for the model. Correct obvious exposure and white-balance problems separately.
For VHS, Hi8 or other tape footage, capture the tape first. Horizontal comb-like edges during movement can indicate interlacing; resolve that in your capture or editing workflow before testing AI. Upscaling does not repair a damaged cassette or restore missing frames.
Keep the original capture and compare a face in motion, dark areas and fine backgrounds. Use the dedicated restoration guide for a capture-to-HD workflow rather than applying the same settings to every source.
Animation has clean lines and flat areas that can expose enhancement defects. Test a pan or moving outline and inspect line weight, color bands and halos. Watch for textures that shimmer between frames even when each paused image appears sharp.
For product demos and screen recordings, accurate text and geometry matter more than extra texture. Small labels may be reconstructed incorrectly. Keep logos and captions as separate overlays when you can, or re-export the original screen recording at a higher resolution.
If a character shape, number or logo changes, reject that result for uses requiring accuracy. Video enhancement is not reliable evidence recovery for faces, license plates or other identifying details.
An online video upscaler suits short clips and one-off jobs; desktop and open-source upscalers suit long files, batches and people who already own a capable GPU. The right choice depends on video length, how often you upscale and whether you want to manage models and settings yourself.
This comparison describes workflows, not measured quality. VideoEnhancer is our product, and we have not published a same-footage benchmark against the other tools. Test one representative clip in any tool you are considering.
| Option | Good fit | Trade-off to check |
|---|---|---|
| This page (online, FlashVSR) | Short MP4 clips, no install, pay per input second | 120-second and 500 MB limit per upload; sign-in required |
| Topaz Video (desktop) | Long projects, batch work, detailed model controls | Current license terms and hardware requirements |
| DaVinci Resolve Studio | Upscaling inside an existing edit with Super Scale | Super Scale is a Studio feature, not in the free edition |
| Video2X (open source) | Free local processing with Real-ESRGAN and other models | Technical setup and a capable GPU; image models can flicker |
| Resize in any editor | Fitting an already sharp clip onto a larger canvas | Adds pixels but no detail |
Compare the same frames at equal display size, then play both clips at normal speed. For a fair test, keep the original, the output and a note of their dimensions. Check the downloaded video; a cropped web preview cannot establish the full-frame result.
This page’s example is a historical SeedVR2 phone clip with source and output dimensions stated beside the player, not a benchmark of the current FlashVSR workflow or competing tools. The guidance here is written by the VideoEnhancer product team; the Gemini and Seedance workflows are preparation advice rather than published model benchmarks.
VideoEnhancer offers a 5-second free video trial. Further processing is paid in credits. Prepare a 5-second sample yourself; do not assume a longer upload will automatically become a free preview. Check your balance and the current pricing before starting additional processing.
This page accepts MP4 video up to 500 MB and 120 seconds. The upload limit does not extend the free allowance. Select 1080p, 2K or 4K before uploading. Paid pricing is based on the duration of the input video, not the processing time.
Video output has no added watermark. Downloads remain available for 3 days, so save the result and retain your original. Processing time varies with the clip and queue; there is no guaranteed completion time.
| Output resolution | Price per input second | 30-second paid job |
|---|---|---|
| 1080p | $0.03 | $0.90 |
| 2K | $0.06 | $1.80 |
| 4K | $0.10 | $3.00 |
Choose the next guide for your footage, destination or tool comparison.
How to upscale a video
Preparation and output inspection
Upscale video to 4K
When 4K helps and when 1080p is enough
Best video upscaler options
Online, desktop and open-source compared
How AI video upscaling works
Super-resolution versus resizing
Increase video resolution
480p, 720p and 1080p source files
6 video enhancement tools
Compare editing and upscaling workflows
Old video restoration tools
Choose by the source defect
Topaz Video AI alternative
Online versus desktop processing
It increases a video’s resolution and uses a super-resolution model to estimate detail that simple resizing cannot add. The result can look clearer at 1080p, 2K or 4K, but the added detail is a prediction, so check faces, text and motion before using it.
Trim a representative 5-second MP4, select 1080p, 2K or 4K on this page, sign in and upload it. Download the result and compare it with the original at the same display size and normal playback speed. If it helps, process the full clip of up to 120 seconds on a paid basis.
Only when the source is soft. Resizing adds pixels without detail and never invents anything; an AI upscaler can make edges and textures look cleaner but may also alter them. If your clip already looks sharp and just needs a larger canvas, resizing in your editor is free and enough.
Yes. Select 4K before uploading an MP4 of up to 500 MB and 120 seconds; it costs $0.10 per input second after the 5-second free trial. 4K works best from a clean 1080p or 2K source. For 480p footage, compare a 1080p result first, because 4K cannot restore detail the source never had.
AI upscaling can improve the apparent detail of a soft but recognizable source. It cannot guarantee native HD detail or faithful recovery of missing information. Test a short moving scene and compare at equal display size.
Select 1080p and upload your best original MP4. Inspect the downloaded dimensions and use an editor for the exact delivery canvas if needed. The height ratio is 2.25×. Preserve aspect ratio: a 4:3 image is 1440 × 1080, while a 16:9 canvas is 1920 × 1080. Extra pixels do not guarantee recovered detail.
Yes. Select 1080p at $0.03 per input second, 2K at $0.06 per input second or 4K at $0.10 per input second before uploading. A 30-second paid job costs $0.90, $1.80 or $3.00 respectively, before any applicable trial allowance.
Download the original Gemini or Veo export, check its dimensions and test a stable 5-second MP4. Inspect faces, text and motion afterward. Regenerate a shot if objects or movement are incorrect; upscaling is not a reliable fix for those errors.
Use the original exported file if it meets the MP4, 500 MB and 120-second limits. Verify its actual resolution rather than assuming every version exports 480p. No Seedance-specific mode is required. This page does not claim a tested result for either version.
Social platforms re-encode video. Start with the original, enhance before posting, and use appropriate export settings. Compare the local file with the published playback after platform processing finishes. A sharper upload cannot guarantee the platform’s playback quality.
Mild softness may improve, but severe focus blur and tiny lettering can produce invented details. Check several moving frames. For accurate logos, captions and screen content, a clean re-export or separate text overlay is often more reliable.
The free video trial covers 5 seconds, with no added output watermark. Further processing requires payment. The maximum upload duration is separate from the free allowance.
Upload MP4 up to 500 MB and 120 seconds. Prepare a 5-second sample for the free trial. Convert MOV, AVI or WebM to MP4 before uploading, and retain the original.
No. More pixels can also make artifacts more visible. Inspect faces, text, texture stability and motion at the intended viewing size. Accept a result because it improves the picture, not simply because its dimensions are larger.
Make TikTok, Reels and YouTube Shorts clearer before posting
Enhance the original camera recording or editor master before uploading to a social platform. A downloaded post has already been compressed; sharpening its blocks and ringing can make it look worse. Ask for the original when you have access to it.
Keep portrait footage vertical throughout the workflow. For a 9:16 Full HD delivery, export 1080 × 1920 in your editor, retain the intended frame rate and add captions after enhancement. Avoid repeated exports at low bitrate.
Platforms re-encode uploads, so inspect the published video after processing has finished. A cleaner master cannot guarantee a particular playback resolution or more views. If the local master is sharp but the posted version is soft, investigate export and platform processing before running the video through AI again.