Questions & straightforward answers

Text-to-video tools generate pixels frame by frame, which makes text blurry, diagrams inconsistent, and edits nearly impossible without re-rolling the whole clip. AnimJS generates a structured scene file — real text, real vector shapes, and an explicit timeline — that you can read and edit like a slide deck.

You do. AI drafts the script and scenes, and drafts can contain mistakes. Because every label, number and spoken line is an editable object, reviewing and changing it before you publish takes edits, not a re-render.

No. You describe what you want to explain in plain language, and you edit the result in a visual studio with a canvas and timeline. If you are a developer or want to automate workflows, the underlying .json format is open and documented, so you can edit or generate scenes in code too.

Click any element on the canvas to change its text, position, color, or style. Use the timeline to adjust when elements appear or how long a scene lasts. Or select a single scene and ask the AI to revise just that part without touching the rest of your animation.

The editor, .json export, the <explainer-player> web component, embedding, and sharing are free on every plan. You can also render an MP4 video up to 1080p with spoken narration included (uses your monthly MP4 export minutes; Free tier MP4 exports are 720p and watermarked).

Add one <script type="module"> tag for the player and one <explainer-player src="your-scene.json"></explainer-player> tag where you want the animation to appear. It works in plain HTML, React, Vue, Svelte, Astro, Next.js, WordPress, Webflow, Notion embeds, and standard LMS pages — and it is free on every plan.

Yes. If you download the .json file and self-host the <explainer-player> bundle, your animations have zero runtime dependency on AnimJS servers. They will keep working on your site indefinitely at no cost.

Yes, on every plan, including Free. You own the animations you create and can use them in commercial courses, client deliverables, marketing pages, and monetized video channels. Free-tier MP4 exports include a small watermark; .json downloads, self-hosted embeds, and paid-plan MP4 exports have no watermark.

The editor, .json export, the <explainer-player> player, embedding, and sharing are free on every plan; only AI credits and MP4 minutes are metered. Narration previews in the editor are also free (using the standard voice, cached by hash, with a fair-use cap), and MP4 minutes include narration. Credit usage is simple: 1 credit = 1 scoped AI edit, 5 credits = 1 full AI draft, and ~10 OCR pages = 1 credit (rounded up). Plans are Free ($0/mo: 25 credits, 5 MP4 min at 720p watermarked), Creator ($9/mo or $90/yr: 200 credits, 40 MP4 min up to 1080p, no watermark), and Pro ($19/mo or $190/yr: 600 credits, 120 MP4 min up to 1080p, no watermark). All prices are in USD and exclude tax.

There is no automatic overage charge, and your existing projects, free editor, .json export, player, embedding, and sharing keep working. When your monthly allowance is exhausted, new AI generation and MP4 export actions pause until your allowance resets on your next billing date, or you can upgrade to Creator or Pro. Monthly allowances reset with no rollover.