CaptionBolt
AI captions in 338 styles for short videos, with resizing, B-Roll, covers and post drafts in one workflow.
Where to buy
1 offerPlans on AppSumo
- 60 processing minutes a month
- 5 min max video length
- 500MB upload limit
- MP4 and TXT exports
- 400 processing minutes a month
- 10 min max video length
- 1GB upload limit
- MP4, SRT, ASS and TXT exports
- 1,200 processing minutes a month
- 20 min max video length
- 3GB upload limit
- High processing priority
- REST API, webhook and MCP server
Details
- Alternative to
- Descript, Kapwing
- Best for
- Agencies, Content creators, Social media managers
- For agencies
- API access
Why it's good
- 338 caption styles with adjustable font, color, motion and highlights
- 4K MP4 exports with no watermarks
- Resize to 9:16, 1:1, 4:5 or 16:9
- Covers, B-Roll and branding presets
- Post drafts for TikTok, Instagram Reels and YouTube Shorts
CaptionBolt generates captions from the speech in a video you have already recorded. You pick from 338 caption styles, adjust font, color, motion and highlighted words, and fix names or terms in the text editor without changing the audio. It then lets you switch between 9:16, 1:1, 4:5 and 16:9 and export MP4 files in up to 4K with no watermarks.
Beyond captions, it offers 24 editable cover designs, B-Roll from suggestions, Pexels or your own uploads, a logo, progress bar and saved branding presets, and post drafts for TikTok, Instagram Reels and YouTube Shorts written from the transcript.
The three tiers differ in limits: 60, 400 or 1,200 processing minutes a month, maximum video length of 5, 10 or 20 minutes, and upload sizes of 500MB, 1GB or 3GB. SRT and ASS exports start at Tier 2, VTT and the REST API, webhook and MCP server are Tier 3. The page lists a 60-day refund window and requires activating the license within 60 days.
