Free AI video upscaler
Upscale videos 2x, 3x or 4x in your browser
Enhance video quality with AI, up to 4K. It's free and runs in your browser: no upload, no signup, no watermark.
Upscale a video
Drop a video here, or paste it
MP4, MOV or WebM · up to 5 minutes and 150 MB · nothing is uploaded
Processed on your device. Your video is never uploaded.
Upscale videos with AI without uploading, signing up, or watermarks
FreeUpscaler is a free AI video upscaler that runs entirely in your browser. Drop in an MP4, WebM, or MOV up to 5 minutes and 150 MB, pick 2x, 3x or 4x, and get a sharper, higher-resolution MP4 back with the original sound. No account, no upload, no watermark. Decoding, upscaling, and re-encoding all happen on your device, so your footage stays private and nobody's cloud queue gets between you and the result.
Video upscaling is harder than image upscaling because every frame has to be processed individually and then stitched back into a playable file with the audio intact. Most cloud services handle this by uploading your video, queueing it behind other users, running it on shared GPUs, and emailing you a download link. FreeUpscaler skips all of that by running the entire pipeline locally.
There are two modes. Standard is the default: fast, with a natural look that suits most videos. Enhance brings out sharper detail in blurry or compressed video and takes longer. Before you start, you can preview a frame of your video and see an estimate of how long the upscale will take. Output goes up to 4K (3840×2160).
How it works
Three steps. Nothing uploaded.
Drop a video, let AI enhance every frame on your device, download the result.
Drop your video
Drag and drop an MP4, WebM, or MOV up to 5 minutes and 150 MB. It loads into your browser's memory. Nothing gets transmitted.
Preview, then upscale on your device
Pick Standard or Enhance and 2x, 3x or 4x, check a preview frame and the time estimate, then start. Every frame is enhanced on your GPU, and your audio passes through untouched.
Download the MP4
You get a clean MP4 at the new resolution with audio preserved. No watermark, no account, no expiring link.
What you can upscale
One tool, every kind of footage
Social media clips
Sharpen heavily compressed Instagram, TikTok, or Reels clips for reposting to higher-quality platforms, compilations, or archive.
AI-generated videos
Push Sora, Veo, Kling, Runway, or Pika output from 720p/1080p to 4K for larger displays and professional edits. No extra API credits.
Screen recordings
Enhance Zoom, Loom, and Google Meet captures so on-screen text and UI stay crisp in product demos, tutorials, and documentation.
Old home videos
Take footage from older phones, camcorders, or webcam software up to something watchable on modern high-resolution displays.
Gameplay & stream clips
Push 720p gameplay to 1440p or 4K for cleaner YouTube uploads and stream highlights. Real-world or stylised footage alike.
Webcam & interviews
Sharpen low-resolution webcam recordings so faces and on-screen text look professional when embedded in landing pages or courses.
Why use a free AI video upscaler that runs in your browser?
Cloud video upscalers have a business model problem. GPU time is expensive, so the free tier is always limited. Most cap your monthly video minutes, watermark the output, or restrict resolution. Paid desktop tools start at $299. And every one of them needs you to upload your footage, which is a dealbreaker for anything sensitive, proprietary, or under NDA.
FreeUpscaler runs the entire pipeline on your device through WebGPU:
- Your video stays private. Frames are decoded and processed in your browser's memory. No upload, no server-side processing, no log of your file.
- No cloud queue. You're not waiting behind other free-tier users. The only bottleneck is your own GPU.
- Long runs can be continued in most browsers. If a long upscale is interrupted, you can pick it up where it stopped instead of starting over.
- No watermark, no signup. The output is clean MP4, and you never create an account to get it.
- Faster repeat loads. Your browser can reuse cached app and AI assets, so the engine usually starts faster after first use.
Supported formats and file sizes
| Input formats | MP4, WebM, MOV |
| Maximum file size | 150 MB |
| Maximum length | 5 minutes |
| Output format | MP4 (H.264) |
| Maximum output | 4K (3840×2160) |
| Audio | Preserved at original quality |
| Scale options | 2x, 3x or 4x |
| Modes | Standard (default) or Enhance |
For the fastest results, use shorter clips, smaller source resolutions and Standard mode. A 30-second 720p clip at 2x in Standard finishes much sooner than a 3-minute 1080p clip in Enhance. The estimate before you start tells you what to expect, and a long clip can be trimmed first.
Free AI video upscaler compared
| FreeUpscaler | TensorPix | Canva | Topaz Video AI | |
|---|---|---|---|---|
| Free to use | Yes, no credits | Limited free credits | Free with signup | Paid ($299+) |
| Signup required | No | Yes | Yes | Yes (license) |
| Watermark on free tier | No | Yes | No | No |
| Runs in browser | Yes | Yes | Yes | No (desktop) |
| Video uploaded to server | No | Yes | Yes | No |
| Audio preserved | Yes | Yes | Yes | Yes |
FAQ
Frequently Asked Questions
Also upscaling images?
The free AI image upscaler runs the same way. 2x or 4x, entirely in your browser.
Try the free AI image upscaler