Submagic

• Automatic subtitle/caption generation in 50+ languages

• Caption style templates (fonts, colors, animation presets)

• B-roll insertion and transitions to enrich video visuals

• Auto trimming/cutting of silences or filler segments

• Auto zoom/reframing to match social formats

• Emoji insertion and keyword highlighting in captions

• Video translation / multilingual subtitles

• Description, hashtag, and caption generation for social sharing

• Manual editing tools for captions and timing adjustments

• Format export for vertical/short video formats

Submagic is an AI-powered video editing and captioning platform designed to streamline the process of creating short, engaging video content for social media. Its core mission is to help creators, marketers, and teams turn long-form videos into attention-grabbing shorts, complete with subtitles, transitions, animations, and visual flair — all with minimal manual effort.

At the heart of Submagic is automatic subtitle generation. Once you upload your video or provide a link, the system transcribes the audio with high accuracy (claiming ~98.8 %) and generates timed captions.  Users can choose from multiple preset caption styles and further customize color, font, animation, and layout.  Submagic supports multilingual output and translation, enabling captions in many languages.

Beyond captions, Submagic enriches videos by inserting B-roll footage, transitions, and zoom effects that dynamically follow the subject.  The AI engine can also trim silent or filler segments automatically, making the video more punchy and engaging.  Emoji insertion, keyword highlighting, and auto caption styles are added to maximize viewer retention and visual interest.

For creators looking to scale their workflow, Submagic also helps generate descriptions, hashtags, and social captions to accompany exported videos. The platform supports manual editing for captions and timing to fine-tune accuracy post-generation.

In terms of usage, Submagic provides free subtitle generation or sample exports to let users test its capabilities.  For full exporting, higher resolution outputs, and advanced editing features, paid plans are necessary.

By automating the heavy lifting of captioning, editing, and visual effects, Submagic enables content creators to focus more on storytelling and distribution. It bridges the gap between raw footage and shareable short-form content, accelerating content pipelines and improving accessibility and engagement across social platforms.