What is Retrotube Television?
Retrotube Television is a free analog video filter that plays a YouTube link, a Twitch stream, your webcam, or a video file from your computer through 57 signal-accurate recreations of old display hardware — shadow-mask and Trinitron CRTs, VHS and Betamax decks, PAL and NTSC broadcast paths, vintage computer monitors, and Super 8 film. Every filter is a real-time WebGL simulation of how that hardware actually handled a signal, not a static overlay dropped on top of your picture.
Is Retrotube Television free?
Yes — completely free, with no account, no watermark, no upload limit, and no feature gates. Everything runs on your own device.
How do I use it?
Paste a YouTube or Twitch link and press PLAY, tap CAM for your webcam, or use FILE to open a video from your computer. Once a picture is up, the deck arrows step through all 57 filters, and the gear at the top right opens Filter, Picture, and Library tuning.
Can I run a Twitch live stream through it?
Yes. Paste a channel link such as twitch.tv/chrispirillo and press PLAY — the live stream runs through whichever tube you have selected, sound included. Past broadcasts and highlights (twitch.tv/videos/…) and clip links work the same way. Twitch runs its own player, so the deck arrows cannot scrub a Twitch program the way they scrub a local file, and the Twitch overlay fades out on its own once nothing is hovering it. If a channel is offline or in an ad break, the tube tells you: Retrotube Television watches the picture itself and reports when nothing is moving.
Does it upload my video or collect my data?
No. All processing happens locally in your browser with WebGL. Your camera feed and your video files never leave your device — there are no servers and no uploads, only anonymous page analytics.
What is the difference between a CRT filter and a VHS filter?
A CRT filter simulates the display: phosphor mask structure, scanlines, beam bloom, and screen geometry. A VHS filter simulates the recording: limited luma and chroma bandwidth, time-base wobble, dropouts, and head-switching noise at the bottom of the frame. Real footage from the era went through both, which is why Retrotube Television lets you stack a tape emulation and a tube emulation by recording one pass and running it back through another.
Why do YouTube and Twitch ask me to choose “This Tab”?
YouTube and Twitch do not allow their embedded players to be read directly by a page. Retrotube Television uses the browser's Element Capture API to isolate the hidden player element and nothing else on the page. That requires a one-time sharing prompt where you pick This Tab. Turn on “Also allow tab audio” if you want the original sound in your recordings. Nothing outside the player is ever captured, and if the isolation fails the app stops rather than falling back to your whole screen.
Which browsers and devices does it work on?
The webcam, local file, and test reel paths work in any modern browser with WebGL 2, including phones and tablets. The YouTube and Twitch paths additionally need the Element Capture API, which today means desktop Chrome or Edge. On Safari, Firefox, or mobile, use CAM or FILE instead.
Can I record or screenshot what I am watching?
Yes. SNAP saves the processed frame as a PNG. REC opens a recording menu where you choose MP4 or animated GIF, the size, and the frame rate. Video is saved as MP4 where your browser supports it and falls back to WebM in Firefox. GIF is limited to 256 colours by the format itself, so gradients will band — it is best kept short. Everything is captured at the same crop and shape as the tube you are watching, and only the filtered picture is recorded, never your desktop.
What filters are included?
All 57, grouped into TV, Tape, Computer, Game, and Etc. They include Color CRT, Trinitron Aperture, CRT Royale, PAL Receiver, NTSC Composite, Studio PVM, Pocket UHF TV, B&W Tube, RF Channel 3, Rear Projection, Early Plasma, Betamax, VHS SP, Super 8, PixelVision, Thermal Fax, and Thermograph, among many others. Each has six tuning knobs, so any of them can be dialed from barely-there texture to full signal collapse.
How does this compare to Kapwing, Zight, or ntsc-rs?
Kapwing and Zight apply preset overlays to a file you upload to their servers, and both push you toward an account. ntsc-rs models NTSC and VHS encoding more rigorously than anything else available and is the reference worth knowing about, but it is a file-processing tool and an editor plugin rather than a live player. Smaller browser CRT players exist too. What Retrotube Television adds is breadth and immediacy in one place: 57 distinct hardware emulations rather than one or two, a live webcam source, six tuning knobs per filter, and nothing ever leaving your device.
Is this the same as your CRT TV app?
No, and they are worth using together. CRT TV is a complete 1980s television set with its own built-in channels, static, and clicky knobs — you sit down and watch it. Retrotube Television is a processor: you bring the picture, and it runs your picture through the hardware.