Skip to main content
NexoraLaunch home

Build log live

OpenSubs vs B-Roll AI

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

OpenSubs compared with B-Roll AI
DetailOpenSubs logo OpenSubs B-Roll AI
What it doesFree AI subtitle generator that runs entirely in your browser Match your camera roll to trending audios
StageNot given Not given
FoundedNot given Not given
Based inNot given TR
Pricing modelNot given Freemium
PricingFree: transcription, translation on-device, all 12 subtitle styles, word-by-word highlighting, trimming, burning into video, and all export formats. Credits: $5 for 1,000 credits for cloud translation (approximately 1 credit per 30 subtitle lines). Free plan forever. B-Roll AI Pro: $4.99/mo or $29.99/yr with free trial available
Key features
  • Speech recognition in the browser using Whisper
  • Translation to 20 languages including Chinese, Japanese, Korean, Spanish, Portuguese, French, German, Italian, Russian, Arabic, Hindi, Indonesian, Thai, Vietnamese, Turkish, Polish, Dutch and Ukrainia
  • Burn subtitles into MP4 without watermark
  • Export to SRT, VTT, ASS and TXT formats
  • Live subtitles over video playing in browser tabs via extension
  • Support for multiple video formats including MP4, MOV, WebM and MKV
  • No server processing—all work runs locally on user's machine
  • On-device video tagging with Apple Vision framework
  • Live trend inbox with rising and peaking audios refreshed daily
  • Trend lifecycle tracking to alert before trend dies
  • Built-in video editor with trim, speed, 9:16 crop, beat-sync
  • Beat-sync waveform display for audio alignment
  • Speed control with pitch preservation: 0.5x, 1x, 1.5x, 2x
  • Dual audio mixing for trend and original sound
  • Push notifications for trend matches
  • No sign-up required, works immediately upon photo access
  • Local-first privacy with minimal cloud footprint
What makes it different
  • 100% browser-based with no uploads—the video never leaves your machine
  • Completely open source under AGPL-3.0-or-later so you can verify the code
  • Free forever for transcription, styling and burning—pay only for optional cloud translation
  • No watermark, no file-size limit, no queue, and no account needed to try
  • On-device scanning keeps your videos private and never uploaded to servers
  • Alerts before trends peak so you can post while they still have reach
  • Built-in editor with beat-sync means no need for separate editing apps
  • Finds existing footage in your camera roll instead of starting from scratch
  • No accounts or sign-up required to start using
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)34 −1 (down) since last check25 −1 (down) since last check
Trust Flow (Majestic)100
Citation Flow (Majestic)3015
Referring domains (Majestic)965

4 details filled in for both companies.

More alternatives to OpenSubs More alternatives to B-Roll AI

Ask a question