Create captioned social videos faster with Video AI
Motionbox is a browser-based Video AI editor that automates captions, resizing and basic edits for social video creators and small teams. It’s best for marketers and creators who need rapid captioned exports and templates, offering a free tier plus paid plans (starts around $19/month) that remove watermarks and unlock higher export quotas.
Motionbox is a cloud video editor in the Video AI category that speeds up social video production by automating captions, resizing and basic timeline edits. Its primary capability is automatic speech-to-text captioning with editable subtitle tracks and timed exports. Motionbox differentiates itself with template-driven social formats (9:16, 1:1, 16:9) and direct publish/import integrations for YouTube and Google Drive. It serves social media managers, content creators, and small marketing teams who repurpose long-form content into short clips. Pricing is accessible with a Free tier and paid plans (from roughly $19/month) for higher export limits and watermark removal.
Motionbox is a browser-first video editor focused on short-form and repurposed content, launched to simplify social video workflows. The product positions itself between full-featured NLEs and lightweight TikTok editors by offering AI-assisted captioning, template libraries, and single-window timeline edits without installation. Motionbox emphasizes speed and repeatability: projects live in the cloud, assets can be imported from URLs or cloud storage, and exports are optimized for platform aspect ratios. The core value proposition is reducing manual captioning and resizing work so teams can push more clips to social channels with consistent branding and styling.
Under the hood Motionbox ships a handful of concrete features used daily by creators. Auto-captioning transcribes audio to editable subtitle tracks and exports SRT/VTT for accessibility; you can adjust timings and styles inline. Text-to-speech (TTS) converts written captions into voiceovers with multiple selectable voices. The editor provides smart resizing tools that reframe and crop clips to 9:16, 1:1, and 16:9, plus presets for Instagram, TikTok and YouTube. Timeline editing supports trimming, splitting, overlays, image and GIF import, and simple transitions. Motionbox also offers templates, direct YouTube import/publish, and Zapier integration for automating ingestion or export tasks.
Pricing is offered as a freemium structure plus paid tiers. The Free tier allows limited exports and basic editor access; expect watermarking or lower export quotas on free accounts. Paid plans (approximate pricing) start at around $19/month for an individual Pro plan that removes watermarks, increases monthly export quotas and unlocks 1080p exports and TTS voices. Team or Business plans (approximately $49+/month) add collaboration features, increased storage and priority support; enterprise pricing is custom for SSO and volume licensing. Exact limits and prices can vary, so check Motionbox’s pricing page for current numbers and annual discounts.
Motionbox is mainly used by social media managers and content creators who need repeatable short-form output. Example users include: a Social Media Manager using Motionbox to turn weekly webinars into 20 captioned 30–60 second clips for Reels each month, and an E-learning Producer repurposing recorded lectures into bite-sized captioned highlights for LMS distribution. Compared with Kapwing, Motionbox focuses more narrowly on caption workflows and template-driven resizing rather than extensive collaborative editing and advanced audio editing found in some competitors.
Three capabilities that set Motionbox apart from its nearest competitors.
Current tiers and what you get at each price point. Verified against the vendor's pricing page.
| Plan | Price | What you get | Best for |
|---|---|---|---|
| Free | Free | Limited exports, watermark on some outputs, basic editor access only | Individuals testing captioning and basic exports |
| Pro | Approx. $19/month | Higher monthly exports, 1080p exports, watermark removed, TTS voices unlocked | Solo creators needing regular captioned exports |
| Team | Approx. $49/month | Shared projects, increased storage, team collaboration features | Small teams producing social video at scale |
| Enterprise | Custom | SSO, custom quotas, priority support, volume licensing | Enterprises needing SSO and high-volume exports |
Choose Motionbox over Kapwing if you prioritize streamlined caption workflows and one-click social-aspect exports for repurposing long-form content.