Free Topaz Video AI Alternatives: Video2X, FFmpeg, and Free Trials Compared

The short answer

Yes, you can get some of what Topaz Video does for free. Video2X runs real AI upscaling and is especially good on anime. FFmpeg handles denoising, scaling, deinterlacing, and frame-rate conversion with standard filters. What you give up is convenience, face restoration, and the more refined models.

• Video2X is a free, open-source app that runs real AI upscaling models (Real-ESRGAN, Real-CUGAN) and RIFE frame interpolation. It needs a GPU that supports Vulkan.
• FFmpeg is free and covers the classic steps: denoise, Lanczos scaling, sharpening, deinterlacing, and motion-interpolated frame rates. These are filters, not AI reconstruction.
• The free version of DaVinci Resolve doesn't include Super Scale or UltraNR. Those are Studio features.
• Free previews and trials of paid tools are a low-cost way to see what AI models do on your own footage before you pay.

In this guide, you'll learn what each free option can do, with tested commands, and when it's worth paying.

Contents

1. What can a free Topaz alternative do?
2. Which free method should you choose?
3. Method 1: AI upscaling with Video2X
4. Method 2: Clean up and upscale with FFmpeg
5. Method 3: Convert to 60 fps with FFmpeg
6. Method 4: Free previews and trials of paid tools
7. Troubleshooting
8. What free tools can't do
9. FAQ

What can a free Topaz alternative do?

A free Topaz alternative is open-source software or a free mode of a paid tool that does part of Topaz's job: upscaling, denoising, deinterlacing, or frame interpolation. Open-source AI models such as Real-ESRGAN can rebuild detail. Classic filters, like those in FFmpeg, only resize and clean up the pixels that are already there.

For the difference between the two, see AI upscaling vs traditional upscaling.

Which free method should you choose?

Method 1: AI upscaling with Video2X

Video2X 6 is a C/C++ app with a Qt6 interface on Windows and packages for Linux. It doesn't have a native Mac app. It runs these models through ncnn and Vulkan:

• Real-ESRGAN: general-purpose upscaling, including an anime variant
• Real-CUGAN: anime and illustration
• Anime4K: fast GLSL shaders for anime
• RIFE: frame interpolation

Steps:

1. Check your hardware. You need a Vulkan GPU (NVIDIA GTX 600 or later, AMD HD 7000 or later, or Intel HD 4000 or later) and a CPU with AVX2 (Intel Haswell or AMD Excavator and later).
2. Install it. Download the Windows installer from the project's GitHub releases page.
3. Add your video, choose upscaling, and pick a model: Real-CUGAN or Anime4K for anime, Real-ESRGAN for live action.
4. Set the scale to 2× unless you really need 4×.
5. Start the job and check the first minute before you leave it to finish.

Sidenote: Video2X is licensed under AGPL-3.0. That's fine for personal and commercial video work. The license matters only if you redistribute or host modified versions of the software.

For line-art-specific tips, see how to upscale anime without losing line art.

Method 2: Clean up and upscale with FFmpeg

This chain lightly denoises, upscales with Lanczos, and adds mild sharpening. We tested it on a 960 × 540 clip, which came out at 1920 × 1080:

ffmpeg -i input.mp4 -vf "hqdn3d=1.5:1.5:6:6,scale=1920:-2:flags=lanczos,unsharp=5:5:0.6" -c:v libx264 -crf 18 -preset slow -c:a copy output.mp4

What each part does:

• hqdn3d=1.5:1.5:6:6 reduces noise in each frame and across frames. Raise the last two numbers for noisier sources, but too much smears motion.
• scale=1920:-2:flags=lanczos resizes to 1920 pixels wide and keeps the aspect ratio. Lanczos keeps edges sharper than the default bicubic.
• unsharp=5:5:0.6 adds mild sharpening. Above about 1.0, you'll see halos.
• -crf 18 -preset slow produces a high-quality H.264 file. -c:a copy keeps the original audio untouched.

For interlaced sources such as old TV, DV, or VHS captures, deinterlace first:

ffmpeg -i input.mp4 -vf "bwdif=mode=send_field,scale=1920:-2:flags=lanczos" -c:v libx264 -crf 18 output.mp4

send_field outputs one frame per field, so 25i becomes 50 fps and 30i becomes 60 fps. That keeps motion smooth. Use mode=send_frame to keep the original frame rate.

Method 3: Convert to 60 fps with FFmpeg

ffmpeg -i input.mp4 -vf "minterpolate=fps=60:mi_mode=mci:mc_mode=aobmc:vsbmc=1" -c:v libx264 -crf 18 output.mp4

This command creates in-between frames by estimating motion. In our test, it turned 30 fps into 60 fps. It's slow, and it can warp fast motion and the edges of moving objects. RIFE, which Video2X includes, usually makes cleaner in-between frames.

Pro tip: Cut a 10-second test first with ffmpeg -ss 00:01:00 -i input.mp4 -t 10 -c copy test.mp4, and run every command on that. You'll know in a minute whether a filter chain works on your footage.

Method 4: Free previews and trials of paid tools

To see what paid AI models do before spending anything, use the free modes:

• KwaFlux: 1-, 3-, or 5-second previews on any clip, with no account
• HitPaw VikPea: the trial allows previews only
• Aiarty: the trial processes clips under 120 seconds
• UniFab: a 30-day desktop trial

Run the same 10-second test clip through Video2X, your FFmpeg chain, and one or two previews. Compare them at 100% zoom. Then you'll know whether paying adds anything for your footage.

[Screenshot: the same frame from Video2X, FFmpeg Lanczos, and a KwaFlux preview, side by side at 100% zoom]

Where a paid tool saves time

Free tools cost nothing, but you pay in setup time and in the jobs they can't do. Here's how Video2X compares with KwaFlux on facts:

If your footage is anime and you don't mind setup, Video2X is hard to argue with. For live action, faces, mixed jobs, or a deadline, a paid tool can pay for itself in saved time.

Troubleshooting

What free tools can't do

• Restore faces. Free general-purpose models don't have dedicated face restoration. On low-resolution sources, faces can come out smeared or distorted.
• Give you a single, polished app for everything. You'll put FFmpeg, Video2X, and an editor together yourself.
• Run Super Scale in free Resolve. Super Scale and UltraNR are DaVinci Resolve Studio features. See Topaz vs DaVinci Resolve.
• Add detail with filters. FFmpeg scaling only resizes. It can't reconstruct texture.

Final thoughts

Free tools cover a lot: Video2X for anime and general AI upscaling, FFmpeg for cleanup, deinterlacing, and frame rates. The gap shows on faces, heavily compressed sources, and in how much time you spend setting things up. Test free options and paid previews on the same clip, then decide. A KwaFlux preview costs nothing either, so it's an easy second opinion next to your Video2X result.

KwaFlux runs AI upscaling, repair, and restoration on your own computer. AI processing runs locally on your GPU, and media files are not uploaded for processing. It runs on Windows 10 (64-bit, version 1809 or later), Windows 11, and macOS 12 or newer on Apple Silicon. Previews need no account: render a 1-, 3-, or 5-second preview on any clip. You only need to sign in with an active paid plan to export, convert, repair a file, or download a file from a link.

Download KwaFlux · See plans

Related reading: Topaz Video AI alternatives compared

Topaz Labs and Topaz Video are trademarks of Topaz Labs, LLC. Other product names belong to their respective owners. KwaFlux is an independent product and isn't affiliated with, sponsored by, or endorsed by any of them.