Submagic

Submagic is a web-based AI video editor for creators, marketers, and teams producing short-form videos for TikTok, Instagram Reels, and YouTube Shorts.

Key capabilities focus on automating the repetitive parts of editing while keeping room for manual tweaks:

• AI captions and subtitles with animated styles, emojis, highlights, speaker labels, and customization (fonts, colors), supporting 48+ languages.
• AI auto edit that transcribes audio, trims silences, removes filler words, cleans audio, applies transitions, sound effects, background music, and auto-zoom effects.
• Magic Clips to repurpose long videos (podcasts, interviews, YouTube links, or uploads) into multiple short clips by extracting key moments.
• B-roll insertion based on transcript context, using stock libraries or user uploads, with controls for how often B-roll appears.

Pricing: Freemium, with a free plan that includes watermarks; paid plans unlock higher export resolutions (including up to 4K depending on the plan).

Notable for combining text-based editing (edit via transcript) with short-form specific automation such as caption styling, contextual B-roll, and export formats optimized for vertical social video.