Juno
junoBackend developer in a mustard hoodie and round glasses. Dry, patient until 2 AM. Walks, sits, types, waves, facepalms and celebrates.
Voice: Luna
Free. No sign-up. Nothing to install.
Write a script.
Get an animated video.
Characters, voices, music and camera moves from a few lines of text. Your own computer draws every frame, right here in the browser, and hands you a Full HD MP4.
- Output
- Full HD MP4
- Voices
- 8 built in
- Uploads
- None
the-cloud-bill.mp4rendered on a GPU
How it works
From a few lines of text to a finished video
- 1
Write the script
Paste a plain conversation ("Developer: Why is my bill so high?") and the studio stages it for you. Or write a full script with gestures, sounds and camera moves, or start from an example.
- 2
Check it
The checker reads every line before anything renders and points at problems: an unknown gesture, a face out of frame, text too close to the edge.
- 3
Render on your GPU
Voices are made in your browser, the scene is timed to them, and your graphics chip draws every frame. Music and effects are mixed in.
- 4
Download the MP4
Watch it right on the page, then save a standard H.264 video with AAC audio, ready for YouTube, Shorts or a slide deck.
coffee-break.txtOpen in the studio
# Coffee Break format: landscape-1080p music: procedural:light-comedy ## SCENE server-room: Coffee break camera: wide on juno, cloud, push-in 0.12 cast: juno @0.1,0.6 facing 20; cloud @1.2,0.5 facing juno ambience: server-hum [juno looks around for 1.2] [pause 1.2] JUNO (worried): Did you just switch off production? [camera: close-up on cloud from -30] CLOUD (cheerful, shrugs): It looked tired. [cut to medium on juno from 10] [juno facepalms] [sfx: boing] [pause 1.4] [fade out 0.6]
Script in, video out
Fifteen lines become a nine-second scene
No timeline, no keyframes. The script says what happens; the studio works out the timing, walks, gestures, lip sync, lighting and camera framing, the same way every time.
This exact script, rendered in a browser tab with the built-in voices.
Features
A small animation studio that lives in a tab
Everything a short animated video needs, from voices to the final file, without leaving the page.
Your GPU does the drawing
Your graphics chip draws every frame and your browser makes the video file. No render farm, no queue, no upload.
Voices made in your browser
Eight built-in voices run on your machine. They download once (about 31 MB) and load in about a second after that.
Same script, same video
Characters are built from maths, not generated pictures, so they look the same in every shot and every episode.
A camera that frames itself
Ask for a wide, medium or close-up shot. The studio keeps faces in frame and the camera out of walls and furniture.
Music and sound effects
Background music and effects are generated to length. The music dips under dialogue and the mix is levelled for YouTube.
Checks before you render
Unknown gestures, faces cut off, text outside the safe area: the checker flags them with the line number.
Fast pace when you want it
One switch for snappy cuts: tighter gaps, quicker voices and an automatic cut to whoever is speaking.
16:9, 9:16 or square
One line in the script picks the shape: landscape for YouTube, vertical for Shorts and Reels, square for feeds.
Showcase
Made from scripts, start to finish
Every frame, voice line, cut and sound in these videos came from a plain-text script. Turn the sound on.
61 s · 16:9 · three scenes
The Cloud Bill That Wouldn't Sleep
A two-in-the-morning cloud bill, a walk through the server room and a calm fix. Made from one script with the full studio pipeline.
16 s · 9:16 · vertical short
Idle Cloud, Asleep
Juno and the Zopdev mascot in a vertical short for Reels and Shorts, with close-ups framed for a phone screen.
Cast and sets
Ready to act, on model every time
Write their names in the script and they show up. Each comes with gestures, expressions and a voice.
Cloud
cloudA soft, cheerful cloud with stubby arms who takes every configuration literally. Floats, waves, shrugs, bounces and yawns.
Voice: Leo
The Zopdev mascot
zopdevA calm cloud with a glowing visor and the Zopdev mark on its forehead. Floats instead of walking; bounces, spins, nods and yawns.
Voice: Bruno
Office
officeDesk, chair, monitor and plant. Day or night lighting.
Server room
server-roomRacks of blinking servers under cold strip lights.
Start from an example
Open a script, change a line, render
Each example opens in the studio ready to render. Edit anything: the words, the moves, the camera.
16:9
The Bill That Never Sleeps
Two scenes, a late-night developer and a very literal cloud. About 15 seconds.
JUNO (tired): Why is the cloud bill still going up? CLOUD (cheerful, waves): Everything is running exactly as configured! CLOUD (excited, bounces): All awake. All billing. All night.Open in the studio16:9
Coffee Break
One scene, one joke, three camera angles. About 9 seconds.
JUNO (worried): Did you just switch off production? CLOUD (cheerful, shrugs): It looked tired.Open in the studio9:16
Friday Deploy
A vertical short for Reels, Shorts and TikTok. About 10 seconds.
JUNO (worried): Should I deploy before the weekend? ZOPDEV (neutral, shakes head): No. JUNO (happy, celebrates): Weekend it is.Open in the studio
FAQ
Questions, answered
The short version: it is free, it runs on your computer, and nothing leaves your browser.
Do I need to install anything or sign up?
No. Open the studio in Chrome or Edge on a laptop or desktop, write a script and press Render. There is no account and nothing to install.
Is my script or my video uploaded anywhere?
No. The script, the voices and every frame are made inside your browser tab. The finished video stays in the tab until you download it.
How long does a render take?
It depends on your graphics chip. On an Apple M4 laptop a nine-second Full HD video takes about 25 seconds on a first visit, voice download included. Older laptops with basic graphics can be 5 to 20 times slower. Quick quality renders at half size and is much faster.
Why is the first render slower than the next ones?
The built-in voices download once, about 31 MB. Your browser keeps them, so later visits are ready in about a second.
Which browsers work?
Chrome and Edge are tested. Safari and Firefox can draw the frames, but their video encoders vary, so the page tells you if yours cannot save an MP4. The page needs HTTPS, which any normal hosting provides.
What happens if I close the tab while it renders?
The render stops. A finished video that you did not download is gone too, so save it before you leave the page.
Can I add my own characters or sets?
Not in the web version yet. It comes with Juno, Cloud, the Zopdev mascot, an office and a server room. You control everything they do from the script.
Your first video is a script away
Open the studio, keep the example or write your own, and press Render.