Upscale videos 2x or 4x in your browser
Enhance video quality with AI. It's free, runs in your browser, no upload, no signup, no watermark, no limits.
Drag & drop your file here
or click to browse
Max 150.0 MB
Or try a sample
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 150 MB, pick 2x or 4x, and get a sharper, higher-resolution video back. 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.
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 150 MB. It loads into your browser's memory. Nothing gets transmitted.
Every frame upscaled on your device
Each frame is decoded, enhanced on your GPU, then re-encoded. Your audio track 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.
- No usage limits. Cloud tools cap your monthly video minutes. Local processing doesn't.
- No watermark, no signup. The output is clean MP4, and you never create an account to get it.
- Offline after the first load. Once the AI is cached, processing works without internet.
Supported formats and file sizes
| Input formats | MP4, WebM, MOV |
| Maximum file size | 150 MB |
| Output format | MP4 (H.264) |
| Audio | Preserved at original quality |
| Scale options | 2x or 4x |
For best performance, use shorter clips and smaller source resolutions. A 30-second 720p clip at 2x is much faster than a 3-minute 1080p clip at 4x. Longer and higher-resolution jobs still work. They just take proportionally longer.
Free AI video upscaler compared
| FreeUpscaler | TensorPix | Canva | Topaz Video AI | |
|---|---|---|---|---|
| Free to use | Yes, unlimited | 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 |
| Works offline | Yes, after first load | No | No | 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