vootkit

Stream Asset Sizer

Correct sizes for Twitch and YouTube banners, avatars and panels.

runs on your deviceno sign-upno watermarkno daily limit

What Stream Asset Sizer does

Correct sizes for Twitch and YouTube banners, avatars and panels. It's one of 133 tools in the Vootkit ecosystem, built to do a single job properly — open it, get your result, move on.

Why use this one

  • Nothing is uploaded. Your file is processed on your own device, so it never travels to a server.
  • No daily limit. Your device does the work, so there's no per-task cost to ration.
  • No watermark. What you get out is what you made.
  • Works on mobile. Same tool, thumb-friendly.

How it works

  1. Open Stream Asset Sizer — nothing to install.
  2. Add your file or input. It stays on your device.
  3. Adjust the options to suit the result you need.
  4. Download or copy your result.

Example

Cutting a 40-second highlight out of a long recording and getting it under Discord's 10 MB limit.

Questions

Is Stream Asset Sizer free?

Yes. Stream Asset Sizer is free to use on Vootkit, with no account, no watermark and no daily task limit.

Are my files uploaded?

No. Stream Asset Sizer runs entirely in your browser — your file is processed on your own device and never sent to a server. There is nothing for us to store or delete.

Do I need to install anything?

No. Stream Asset Sizer works in any modern browser on desktop, tablet or phone. Open the page and start.

Is there a limit on how many times I can use it?

No. Because the work happens on your device rather than our servers, there is no per-task cost and therefore no daily cap.

Next in Video & Streaming

Compress for Discord

One-click 10 MB, 50 MB and 500 MB presets that actually fit.

runs on your device

Video Trimmer

Cut the segment you want and save it.

runs on your device

Streaming Bitrate Calculator

Best bitrate for your upload speed, resolution and platform.

runs on your device

Vertical Reframe 9:16

Reframe a clip for Shorts, TikTok and Reels.

runs on your device

Video to GIF

Turn a short clip into a shareable GIF.

runs on your device

Frame Grabber

Pull a still frame out for a thumbnail.

runs on your device

This tool processes everything locally in your browser. You can disconnect from the internet after the page loads and it will still work.