Submagic

Submagic is an AI short-form video editor that auto-generates dynamic captions, emojis, keyword highlights, B-roll, and effects for TikTok, Reels, and Shorts in 48+ languages with high caption accuracy. It lets creators turn raw clips into polished vertical videos in minutes. It is subscription-based with a limited free plan; lower tiers have per-video and length limits worth checking.

Submagic is an AI-powered short-form video editor built for creators who publish on TikTok, Instagram Reels, and YouTube Shorts. Its core feature is automatic, dynamic captions, transcribing speech with high accuracy and styling it with animated, trend-aware caption templates, emojis, and keyword highlights in 48+ languages. On top of captions, it adds AI B-roll suggestions, sound effects, zooms, and other enhancements designed to boost retention on vertical video. The appeal is speed: creators can turn a raw talking-head clip into a captioned, visually enhanced short in minutes, without learning a full editor. Submagic leans into the fast-moving conventions of short-form content (bold moving captions, emoji punctuation, punchy edits), which is exactly what many creators want and what more traditional editors make tedious to produce. Submagic is a fast-growing, largely bootstrapped company founded in 2023 that reached meaningful revenue quickly. Pricing is subscription-based with a limited free plan (a few watermarked videos) and paid tiers that raise the number and length of videos, add AI credits, and unlock features like 4K export and API access. Video-length caps on lower tiers are worth checking, as they can be restrictive for longer clips.