CaptionBolt is a caption-first video finishing tool for footage that has already been recorded. It transcribes speech, applies a styled caption look and keeps the original framing, so a talking video, demo, interview, course clip or Zoom recording can reach publishable form without a multi-track editor.
The site says it does not try to become a full editing suite or a long-video clipping product. Its stated aim is to keep post-recording work, such as fixing the transcript, checking the frame and exporting, in one workspace.
How does CaptionBolt work?
The workflow has three steps. You upload a video, and CaptionBolt transcribes the speech, times every line and applies a caption style. You then review the words and frame, choosing a style, resizing or trimming only if the video needs it.
In the final step you preview the video and export. Output is the captioned MP4 plus any subtitle or text files your plan includes. The site states that the browser preview should match the downloaded file, and advises checking final placement in the destination app.
Key features of CaptionBolt
Captions are the core: 338 styles across six searchable families, with controls for type, color, highlights, outlines, motion, placement and keyword emphasis. A text editor handles corrections, line splits and merges. Resize supports 9:16, 1:1, 4:5 and 16:9 with crop, blurred or solid backgrounds, and Clip handles trimming and pause cleanup.
Further tools add visual and brand elements. Smart B-Roll uses transcript-matched Pexels footage, search or your uploads. Cover offers 24 designs with three editable headline directions in six tones. Logos, a progress bar and video presets support branding, and AI drafts social copy, hashtags and YouTube tags.
Key Features
AI captions with 338 styles — Transcribes speech, times each line and applies a style from six searchable families. Type, color, highlights, outlines, motion, placement and keyword emphasis can be changed.
Text Editor — Review the transcript, correct words, split or merge lines and hide captions without changing the recorded audio, video or timing.
Resize and crop — Keep the original frame or resize to 9:16, 1:1, 4:5 or 16:9 with crop, blurred or solid backgrounds.
Clip and speech cleanup — Trim the start or end, remove an interior section, and review longer pauses before removing them. Cleanup cuts stay visible and reversible.
Smart B-Roll — Add transcript-matched suggestions, search Pexels or upload your own media, then adjust timing, layout and transitions.
Cover and on-video Headline — Generate three editable headline directions in six tones and apply one to any of 24 Cover designs. A separate optional on-video Headline is also available.
Logo, progress bar and video presets — Upload and position a logo, add a full-width progress bar, and save caption, canvas, cover, logo and progress settings as a reusable preset.
AI social posts — Drafts editable captions, titles, hashtags, YouTube tags and Shorts descriptions for TikTok, Instagram Reels and YouTube Shorts from one transcript.
Export and subtitle files — Exports MP4 up to 4K on paid plans, plus TXT, SRT, ASS or VTT subtitle files depending on the plan.
REST API, webhooks and MCP — Max subscribers can create caption projects, check progress and retrieve exports from applications or AI assistants.
Pros & Cons
Pros
Free plan with 10 processing minutes per month and access to all 338 caption styles and the full editor.
Covers captions, resizing, trimming, B-Roll, covers, branding and social copy in one workspace.
AI suggestions are optional and editable, and the user reviews everything before export.
Paid plans start at $6/month on annual billing and remove the watermark.
Video presets let teams reuse caption style, canvas, logo, cover and progress settings.
Max plan includes REST API, webhooks and an MCP server for automation.
Cons
Free exports carry a CaptionBolt watermark, and uploads are capped at 3 minutes and 200 MB.
SRT, ASS and VTT subtitle exports require Pro or Max; Free and Starter export only MP4 and TXT.
API, webhook and MCP access is limited to the Max plan.
It is not a multi-track editor or a long-video clipping tool, so complex edits need other software.
Pricing
Free $0 Free forever
Starter $6/month Billed annually at $72
Pro $12/month Billed annually at $144
Max $25/month Billed annually at $300
Frequently Asked Questions
What is CaptionBolt?
CaptionBolt is a browser-based video finishing tool that generates styled AI captions for recorded videos. It also handles resizing, trimming, B-Roll, covers, branding and social post drafts.
How much does CaptionBolt cost?
A free plan includes 10 processing minutes per month. Paid plans are listed at $6/month for Starter, $12/month for Pro and $25/month for Max, billed annually. The homepage cites paid plans from $9/month.
Does CaptionBolt have a free plan?
Yes. The free plan needs no credit card and includes 10 processing minutes monthly, videos up to 3 minutes, 1080p export and all 338 caption styles. Exports carry a CaptionBolt watermark.
Who is CaptionBolt best for?
It suits creators, coaches, educators, small marketing teams and freelancers who publish talking videos, demos or interviews regularly. It also serves editors who need subtitle files.
Can I edit the captions before exporting?
Yes. The Text Editor lets you correct words, split or merge lines and hide captions. The site says every AI result stays editable and that you preview before export.
What export formats does CaptionBolt support?
Free and Starter export MP4 and TXT. Pro adds SRT and ASS, and Max adds VTT as well. Paid plans export up to 4K, depending on the source video.
Does CaptionBolt have an API?
Yes. A REST API, webhooks and an MCP server are included on the Max plan. They use the account's existing processing minutes and limits.
Do AI actions use processing minutes?
The site says optional AI actions do not deduct extra minutes from the processing allowance. Fair-use request limits apply.