The script is the actual hard part of an explainer video, not the animation. Use the problem-agitate-solve framework: state the problem, make the viewer feel it, reveal the solution. Aim for 150-200 words for a 60-90 second video, and read it out loud — if it sounds like a brochure, rewrite it to sound like you're explaining it to a friend.

Break the script into 8-12 scenes, one idea per scene, and sketch what appears on screen for each (even rough boxes in Canva or on paper). Skipping this step is the most common reason DIY explainer videos feel disjointed — the animation tool doesn't know your story, only you do.

Both have explainer-specific template libraries — characters, icons, scene transitions — built to have your script's beats dropped into them. Renderforest's free plan lets you build and preview everything, capped at 360p with a watermark until you pay $9-19/mo. Powtoon's free plan is more restrictive — it doesn't allow MP4 export at all, so budget for at least the $49/mo Lite plan if you want a usable file.

If you don't want to use your own voice, ElevenLabs' free tier generates narration that's genuinely convincing now, in a range of voices. If you do record yourself, a quiet closet with clothes hanging in it works surprisingly well as an amateur sound booth.

Import your voiceover track into your animation tool's timeline and adjust each scene's length so visuals land on the right beat of the narration — a scene that resolves half a second before or after the line it illustrates is the difference between feeling polished and feeling amateur.