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CaptionBake

Free plan APIMacWindows

What CaptionBake is

CaptionBake is a desktop and API tool for styling captions, burning them into video, and exporting finished MP4 files. Processing runs locally on macOS 12 or later and Windows 10 or later with bundled FFmpeg, without cloud upload. A live preview controls caption size, color, stroke, shadow, position, and safe areas. The app accepts SRT, VTT, SBV, ASS/SSA, and iTunes Timed Text/TTML files, and can export subtitles in other formats. It converts MOV, MKV, or WebM to MP4 with H.264 video and AAC audio for services including Instagram, TikTok, and YouTube. The free plan provides unlimited, full-resolution, watermark-free MP4 exports without an account, using Helvetica styling. Pro costs $39 a month and adds on-device English caption generation, system fonts, named presets, karaoke tools, editable ASS export, and a localhost HTTP API. First-time AI caption use downloads a model of about 142 MB.

Who it suits

CaptionBake suits creators who need local caption burn-in, styling, or video conversion on Mac or Windows. Pro is aimed at users wanting generated English captions, karaoke editing, or local automation.

What it does well

Local processing avoids cloud video upload
Free exports are unlimited and watermark-free
Supports common caption file formats
Converts several video formats to MP4
Pro includes caption generation and API

What to know first

Free styling uses Helvetica
Pro costs $39 a month
Minimum systems are macOS 12 and Windows 10
API permits one export at a time

Plans

Plan	Billed and limits	Price
Free	Unlimited watermark-free MP4 export · Caption burn-in or caption-free conversion	Free
Pro	one-time · AI captions · Karaoke tools · HTTP API · Checkout coming soon	$39, paid once

As corelogic.cc lists them, read 10 Oct 2026. The maker's own page has the final word.

Verdict

CaptionBake offers local caption production with a generous free export allowance and a focused Pro upgrade. Check the operating-system requirements and one-export API limit for your workflow.

Facts from CaptionBake's own pages

AI captions: Pro generates editable English captions from audio on-device with Whisper base.en; first use downloads a model of about 142 MB. · corelogic.cc, 10 Oct 2026
Automation: Pro offers a local HTTP API for exports and caption generation while the app is open; it listens only on localhost and allows one export at a time. · corelogic.cc, 10 Oct 2026
Brand caption presets: Yes · corelogic.cc, 19 Sept 2026
Burn-in captions: Yes · corelogic.cc, 19 Sept 2026
Caption formats: It supports SRT, VTT, SBV, ASS/SSA, and iTunes Timed Text/TTML formats. · corelogic.cc, 10 Oct 2026
Caption languages: 1 · corelogic.cc, 19 Sept 2026
Caption styling: Yes · corelogic.cc, 19 Sept 2026
Free limits: Free export is unlimited, full resolution, watermark-free, and requires no account; free styling uses Helvetica. · corelogic.cc, 10 Oct 2026
Free plan: Yes · corelogic.cc, 19 Sept 2026
Karaoke tools: Pro includes word timing editing and optional karaoke coloring, and the maker says Whisper alignment may mishear or mistime words. · corelogic.cc, 10 Oct 2026
Live styling: Users can adjust caption size, color, stroke, shadow, position, and safe areas in a real-time preview. · corelogic.cc, 10 Oct 2026
Offline processing: Caption burn-in runs on Mac or Windows with bundled FFmpeg and no cloud upload. · corelogic.cc, 10 Oct 2026
Purpose: CaptionBake styles captions live, burns them into video, and exports a finished MP4; it can also convert video without captions. · corelogic.cc, 10 Oct 2026
Requirements: The listed minimum operating systems are macOS 12 and Windows 10. · corelogic.cc, 10 Oct 2026
Subtitle export: other formats · corelogic.cc, 19 Sept 2026
Support: The maker provides GitHub links to request a feature or report a bug and says optional tips can be sent through GitHub Sponsors. · corelogic.cc, 10 Oct 2026
Video conversion: It can re-encode MOV, MKV, or WebM into MP4 using H.264 and AAC for services including Instagram, TikTok, and YouTube. · corelogic.cc, 10 Oct 2026
Windows installer: The maker says Windows installers are not code-signed yet, so SmartScreen may display a warning. · corelogic.cc, 10 Oct 2026

Where CaptionBake stands on Freedom251

AI Video Caption Generators#25 of 99