Tool vs result
Jitter
Jitter is the studio.
Siren
Siren is the studio's output, in your brand.
Compare
Jitter is a collaborative motion design tool in the browser: templates, components, fonts, AI that drafts editable animations, and exports from MP4 to Lottie. You design the motion. Siren designs it for you: pick a video type, give it your site and a line, get a finished video posted.
The cut
Pick Jitter when you have a designer who wants full control of every keyframe. Pick Siren when nobody on the team animates and the launch is this week.
At a glance
Edge column is editorial judgment for a campaign team, not a feature scoreboard. Ties mean different jobs, not a coin flip.
| Dimension | Jitter | Siren | Edge |
|---|---|---|---|
| Who designs | You, with templates and AI help | Siren, from 93 designed video types | Tie |
| Control | Every keyframe | Words, screens, shape, voice and direction | Them |
| Time to a video | Hours of design | Minutes | Siren |
| Exports | MP4, GIF, Lottie, ProRes, WebM | MP4 | Them |
| Posting | None found | X, LinkedIn, TikTok, YouTube | Siren |
| Price | Free plan; paid per editor | $9.99 for one video, or Spark $19 a month (videos, MCP and API on every plan) | Tie |
Honest split
Premium products do not pretend to do everything. Neither do we.
Choose Jitter if…
Choose Siren if…
Mechanism
Jitter
Jitter is the studio.
Siren
Siren is the studio's output, in your brand.
Jitter
Rewards a designer's eye.
Siren
Needs none.
Jitter
You set fonts and components by hand.
Siren
Brand DNA from your site goes in automatically.
Jitter
Animate product UI details in Jitter.
Siren
Make the launch and feature videos in Siren.
FAQ
Yes. Its AI agents draft editable animations from text, and it has image-to-video.
You change the words, screens, shape, voice and direction and render again. You do not edit keyframes.
There is a free plan with 720p exports and a watermark. Paid plans are per editor.
Also compare
a thousand voices, one signature
Paste your site and get a finished video.